feat: Complete business model expansion

MAJOR FEATURES:
- New pricing tiers: Scout (Free), Trader (€19/mo), Tycoon (€49/mo)
- Portfolio management: Track owned domains with purchase price, value, ROI
- Domain valuation engine: Algorithmic estimates based on length, TLD, keywords, brandability
- Dashboard tabs: Watchlist + Portfolio views
- Valuation modal: Score breakdown with confidence level

BACKEND:
- New models: PortfolioDomain, DomainValuation
- New API routes: /portfolio/* with full CRUD
- Valuation service with multi-factor algorithm
- Database migration for portfolio tables

FRONTEND:
- Updated pricing page with comparison table and billing toggle
- Dashboard with Watchlist/Portfolio tabs
- Portfolio summary stats: Total value, invested, unrealized P/L, ROI
- Add portfolio domain modal with all fields
- Domain valuation modal with score visualization
- Updated landing page with new tier pricing
- Hero section with large puma logo

DESIGN:
- Consistent minimalist dark theme
- Responsive on all devices
- Professional animations and transitions

README.md

@@ -6,6 +6,8 @@ A professional full-stack application for monitoring domain name availability wi
 
 ### Core Functionality
 - **Domain Availability Monitoring** — Track any domain and get notified when it becomes available
+- **Domain Portfolio Management** — Track domains you own with purchase price, value, and ROI
+- **Domain Valuation Engine** — Algorithmic domain value estimation based on length, TLD, keywords, brandability
 - **TLD Price Intelligence** — Compare prices across 886+ TLDs from Porkbun API
 - **Automated Price Scraping** — Daily cronjob scrapes real TLD prices from public APIs
 - **Price Change Alerts** — Email notifications when TLD prices change >5%
@@ -270,15 +272,17 @@ npm run dev
 
 ## Subscription Tiers
 
-| Feature | Starter (Free) | Professional ($4.99/mo) | Enterprise ($9.99/mo) |
-|---------|----------------|------------------------|----------------------|
-| Domains | 3 | 25 | 100 |
-| Check Frequency | Daily | Daily | Hourly |
-| Notifications | Email | Priority Email | Priority Email |
-| WHOIS Data | Basic | Full | Full |
-| Check History | — | 30 days | Unlimited |
-| Expiration Tracking | — | ✓ | ✓ |
+| Feature | Scout (Free) | Trader (€19/mo) | Tycoon (€49/mo) |
+|---------|--------------|-----------------|------------------|
+| Watchlist Domains | 5 | 50 | 500 |
+| Portfolio Domains | — | 25 | Unlimited |
+| Check Frequency | Daily | Hourly | 10 min |
+| Notifications | Email | SMS/Telegram | + Webhooks |
+| Domain Valuation | — | ✓ | ✓ |
+| SEO Metrics | — | — | ✓ |
+| Check History | — | 90 days | Unlimited |
 | API Access | — | — | ✓ |
+| Bulk Tools | — | — | ✓ |
 
 ---
 

backend/alembic/versions/003_add_portfolio_tables.py

@@ -0,0 +1,76 @@
+"""Add portfolio and valuation tables
+
+Revision ID: 003
+Revises: 002
+Create Date: 2025-01-08
+"""
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers, used by Alembic
+revision = '003'
+down_revision = '002'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # Create portfolio_domains table
+    op.create_table(
+        'portfolio_domains',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('domain', sa.String(255), nullable=False),
+        sa.Column('purchase_date', sa.DateTime(), nullable=True),
+        sa.Column('purchase_price', sa.Float(), nullable=True),
+        sa.Column('purchase_registrar', sa.String(100), nullable=True),
+        sa.Column('registrar', sa.String(100), nullable=True),
+        sa.Column('renewal_date', sa.DateTime(), nullable=True),
+        sa.Column('renewal_cost', sa.Float(), nullable=True),
+        sa.Column('auto_renew', sa.Boolean(), default=True),
+        sa.Column('estimated_value', sa.Float(), nullable=True),
+        sa.Column('value_updated_at', sa.DateTime(), nullable=True),
+        sa.Column('is_sold', sa.Boolean(), default=False),
+        sa.Column('sale_date', sa.DateTime(), nullable=True),
+        sa.Column('sale_price', sa.Float(), nullable=True),
+        sa.Column('status', sa.String(50), default='active'),
+        sa.Column('notes', sa.Text(), nullable=True),
+        sa.Column('tags', sa.String(500), nullable=True),
+        sa.Column('created_at', sa.DateTime(), server_default=sa.text('CURRENT_TIMESTAMP')),
+        sa.Column('updated_at', sa.DateTime(), server_default=sa.text('CURRENT_TIMESTAMP')),
+        sa.ForeignKeyConstraint(['user_id'], ['users.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_portfolio_domains_id'), 'portfolio_domains', ['id'], unique=False)
+    op.create_index(op.f('ix_portfolio_domains_user_id'), 'portfolio_domains', ['user_id'], unique=False)
+
+    # Create domain_valuations table
+    op.create_table(
+        'domain_valuations',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('domain', sa.String(255), nullable=False),
+        sa.Column('estimated_value', sa.Float(), nullable=False),
+        sa.Column('length_score', sa.Integer(), nullable=True),
+        sa.Column('tld_score', sa.Integer(), nullable=True),
+        sa.Column('keyword_score', sa.Integer(), nullable=True),
+        sa.Column('brandability_score', sa.Integer(), nullable=True),
+        sa.Column('moz_da', sa.Integer(), nullable=True),
+        sa.Column('moz_pa', sa.Integer(), nullable=True),
+        sa.Column('backlinks', sa.Integer(), nullable=True),
+        sa.Column('source', sa.String(50), default='internal'),
+        sa.Column('created_at', sa.DateTime(), server_default=sa.text('CURRENT_TIMESTAMP')),
+        sa.PrimaryKeyConstraint('id')
+    )
+    op.create_index(op.f('ix_domain_valuations_id'), 'domain_valuations', ['id'], unique=False)
+    op.create_index(op.f('ix_domain_valuations_domain'), 'domain_valuations', ['domain'], unique=False)
+
+
+def downgrade() -> None:
+    op.drop_index(op.f('ix_domain_valuations_domain'), table_name='domain_valuations')
+    op.drop_index(op.f('ix_domain_valuations_id'), table_name='domain_valuations')
+    op.drop_table('domain_valuations')
+    
+    op.drop_index(op.f('ix_portfolio_domains_user_id'), table_name='portfolio_domains')
+    op.drop_index(op.f('ix_portfolio_domains_id'), table_name='portfolio_domains')
+    op.drop_table('portfolio_domains')
+

backend/app/api/__init__.py

@@ -7,6 +7,7 @@ from app.api.check import router as check_router
 from app.api.subscription import router as subscription_router
 from app.api.admin import router as admin_router
 from app.api.tld_prices import router as tld_prices_router
+from app.api.portfolio import router as portfolio_router
 
 api_router = APIRouter()
 
@@ -15,5 +16,6 @@ api_router.include_router(check_router, prefix="/check", tags=["Domain Check"])
 api_router.include_router(domains_router, prefix="/domains", tags=["Domain Management"])
 api_router.include_router(subscription_router, prefix="/subscription", tags=["Subscription"])
 api_router.include_router(tld_prices_router, prefix="/tld-prices", tags=["TLD Prices"])
+api_router.include_router(portfolio_router, prefix="/portfolio", tags=["Portfolio"])
 api_router.include_router(admin_router, prefix="/admin", tags=["Admin"])
 

backend/app/api/portfolio.py

@@ -0,0 +1,542 @@
+"""Portfolio API routes."""
+from datetime import datetime
+from typing import Optional, List
+from fastapi import APIRouter, Depends, HTTPException, status, Query
+from pydantic import BaseModel, Field
+from sqlalchemy import select, func, and_
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.database import get_db
+from app.api.auth import get_current_user
+from app.models.user import User
+from app.models.portfolio import PortfolioDomain, DomainValuation
+from app.services.valuation import valuation_service
+
+router = APIRouter()
+
+
+# ============== Schemas ==============
+
+class PortfolioDomainCreate(BaseModel):
+    """Schema for creating a portfolio domain."""
+    domain: str = Field(..., min_length=3, max_length=255)
+    purchase_date: Optional[datetime] = None
+    purchase_price: Optional[float] = Field(None, ge=0)
+    purchase_registrar: Optional[str] = None
+    registrar: Optional[str] = None
+    renewal_date: Optional[datetime] = None
+    renewal_cost: Optional[float] = Field(None, ge=0)
+    auto_renew: bool = True
+    notes: Optional[str] = None
+    tags: Optional[str] = None
+
+
+class PortfolioDomainUpdate(BaseModel):
+    """Schema for updating a portfolio domain."""
+    purchase_date: Optional[datetime] = None
+    purchase_price: Optional[float] = Field(None, ge=0)
+    purchase_registrar: Optional[str] = None
+    registrar: Optional[str] = None
+    renewal_date: Optional[datetime] = None
+    renewal_cost: Optional[float] = Field(None, ge=0)
+    auto_renew: Optional[bool] = None
+    status: Optional[str] = None
+    notes: Optional[str] = None
+    tags: Optional[str] = None
+
+
+class PortfolioDomainSell(BaseModel):
+    """Schema for marking a domain as sold."""
+    sale_date: datetime
+    sale_price: float = Field(..., ge=0)
+
+
+class PortfolioDomainResponse(BaseModel):
+    """Response schema for portfolio domain."""
+    id: int
+    domain: str
+    purchase_date: Optional[datetime]
+    purchase_price: Optional[float]
+    purchase_registrar: Optional[str]
+    registrar: Optional[str]
+    renewal_date: Optional[datetime]
+    renewal_cost: Optional[float]
+    auto_renew: bool
+    estimated_value: Optional[float]
+    value_updated_at: Optional[datetime]
+    is_sold: bool
+    sale_date: Optional[datetime]
+    sale_price: Optional[float]
+    status: str
+    notes: Optional[str]
+    tags: Optional[str]
+    roi: Optional[float]
+    created_at: datetime
+    updated_at: datetime
+    
+    class Config:
+        from_attributes = True
+
+
+class PortfolioSummary(BaseModel):
+    """Summary of user's portfolio."""
+    total_domains: int
+    active_domains: int
+    sold_domains: int
+    total_invested: float
+    total_value: float
+    total_sold_value: float
+    unrealized_profit: float
+    realized_profit: float
+    overall_roi: float
+
+
+class ValuationResponse(BaseModel):
+    """Response schema for domain valuation."""
+    domain: str
+    estimated_value: float
+    currency: str
+    scores: dict
+    factors: dict
+    confidence: str
+    source: str
+    calculated_at: str
+
+
+# ============== Portfolio Endpoints ==============
+
+@router.get("", response_model=List[PortfolioDomainResponse])
+async def get_portfolio(
+    status: Optional[str] = Query(None, description="Filter by status"),
+    sort_by: str = Query("created_at", description="Sort field"),
+    sort_order: str = Query("desc", description="Sort order (asc/desc)"),
+    limit: int = Query(100, le=500),
+    offset: int = Query(0, ge=0),
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Get user's portfolio domains."""
+    query = select(PortfolioDomain).where(PortfolioDomain.user_id == current_user.id)
+    
+    # Filter by status
+    if status:
+        query = query.where(PortfolioDomain.status == status)
+    
+    # Sorting
+    sort_column = getattr(PortfolioDomain, sort_by, PortfolioDomain.created_at)
+    if sort_order == "asc":
+        query = query.order_by(sort_column.asc())
+    else:
+        query = query.order_by(sort_column.desc())
+    
+    # Pagination
+    query = query.offset(offset).limit(limit)
+    
+    result = await db.execute(query)
+    domains = result.scalars().all()
+    
+    # Calculate ROI for each domain
+    responses = []
+    for d in domains:
+        response = PortfolioDomainResponse(
+            id=d.id,
+            domain=d.domain,
+            purchase_date=d.purchase_date,
+            purchase_price=d.purchase_price,
+            purchase_registrar=d.purchase_registrar,
+            registrar=d.registrar,
+            renewal_date=d.renewal_date,
+            renewal_cost=d.renewal_cost,
+            auto_renew=d.auto_renew,
+            estimated_value=d.estimated_value,
+            value_updated_at=d.value_updated_at,
+            is_sold=d.is_sold,
+            sale_date=d.sale_date,
+            sale_price=d.sale_price,
+            status=d.status,
+            notes=d.notes,
+            tags=d.tags,
+            roi=d.roi,
+            created_at=d.created_at,
+            updated_at=d.updated_at,
+        )
+        responses.append(response)
+    
+    return responses
+
+
+@router.get("/summary", response_model=PortfolioSummary)
+async def get_portfolio_summary(
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Get portfolio summary statistics."""
+    result = await db.execute(
+        select(PortfolioDomain).where(PortfolioDomain.user_id == current_user.id)
+    )
+    domains = result.scalars().all()
+    
+    total_domains = len(domains)
+    active_domains = sum(1 for d in domains if d.status == "active" and not d.is_sold)
+    sold_domains = sum(1 for d in domains if d.is_sold)
+    
+    total_invested = sum(d.purchase_price or 0 for d in domains)
+    total_value = sum(d.estimated_value or 0 for d in domains if not d.is_sold)
+    total_sold_value = sum(d.sale_price or 0 for d in domains if d.is_sold)
+    
+    # Calculate active investment for ROI
+    active_investment = sum(d.purchase_price or 0 for d in domains if not d.is_sold)
+    sold_investment = sum(d.purchase_price or 0 for d in domains if d.is_sold)
+    
+    unrealized_profit = total_value - active_investment
+    realized_profit = total_sold_value - sold_investment
+    
+    overall_roi = 0.0
+    if total_invested > 0:
+        overall_roi = ((total_value + total_sold_value - total_invested) / total_invested) * 100
+    
+    return PortfolioSummary(
+        total_domains=total_domains,
+        active_domains=active_domains,
+        sold_domains=sold_domains,
+        total_invested=round(total_invested, 2),
+        total_value=round(total_value, 2),
+        total_sold_value=round(total_sold_value, 2),
+        unrealized_profit=round(unrealized_profit, 2),
+        realized_profit=round(realized_profit, 2),
+        overall_roi=round(overall_roi, 2),
+    )
+
+
+@router.post("", response_model=PortfolioDomainResponse, status_code=status.HTTP_201_CREATED)
+async def add_portfolio_domain(
+    data: PortfolioDomainCreate,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Add a domain to portfolio."""
+    # Check if domain already exists in user's portfolio
+    existing = await db.execute(
+        select(PortfolioDomain).where(
+            and_(
+                PortfolioDomain.user_id == current_user.id,
+                PortfolioDomain.domain == data.domain.lower(),
+            )
+        )
+    )
+    if existing.scalar_one_or_none():
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail="Domain already in portfolio",
+        )
+    
+    # Get initial valuation
+    valuation = await valuation_service.estimate_value(data.domain, db, save_result=True)
+    estimated_value = valuation.get("estimated_value") if "error" not in valuation else None
+    
+    # Create portfolio entry
+    domain = PortfolioDomain(
+        user_id=current_user.id,
+        domain=data.domain.lower(),
+        purchase_date=data.purchase_date,
+        purchase_price=data.purchase_price,
+        purchase_registrar=data.purchase_registrar,
+        registrar=data.registrar or data.purchase_registrar,
+        renewal_date=data.renewal_date,
+        renewal_cost=data.renewal_cost,
+        auto_renew=data.auto_renew,
+        estimated_value=estimated_value,
+        value_updated_at=datetime.utcnow() if estimated_value else None,
+        notes=data.notes,
+        tags=data.tags,
+    )
+    
+    db.add(domain)
+    await db.commit()
+    await db.refresh(domain)
+    
+    return PortfolioDomainResponse(
+        id=domain.id,
+        domain=domain.domain,
+        purchase_date=domain.purchase_date,
+        purchase_price=domain.purchase_price,
+        purchase_registrar=domain.purchase_registrar,
+        registrar=domain.registrar,
+        renewal_date=domain.renewal_date,
+        renewal_cost=domain.renewal_cost,
+        auto_renew=domain.auto_renew,
+        estimated_value=domain.estimated_value,
+        value_updated_at=domain.value_updated_at,
+        is_sold=domain.is_sold,
+        sale_date=domain.sale_date,
+        sale_price=domain.sale_price,
+        status=domain.status,
+        notes=domain.notes,
+        tags=domain.tags,
+        roi=domain.roi,
+        created_at=domain.created_at,
+        updated_at=domain.updated_at,
+    )
+
+
+@router.get("/{domain_id}", response_model=PortfolioDomainResponse)
+async def get_portfolio_domain(
+    domain_id: int,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Get a specific portfolio domain."""
+    result = await db.execute(
+        select(PortfolioDomain).where(
+            and_(
+                PortfolioDomain.id == domain_id,
+                PortfolioDomain.user_id == current_user.id,
+            )
+        )
+    )
+    domain = result.scalar_one_or_none()
+    
+    if not domain:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Domain not found in portfolio",
+        )
+    
+    return PortfolioDomainResponse(
+        id=domain.id,
+        domain=domain.domain,
+        purchase_date=domain.purchase_date,
+        purchase_price=domain.purchase_price,
+        purchase_registrar=domain.purchase_registrar,
+        registrar=domain.registrar,
+        renewal_date=domain.renewal_date,
+        renewal_cost=domain.renewal_cost,
+        auto_renew=domain.auto_renew,
+        estimated_value=domain.estimated_value,
+        value_updated_at=domain.value_updated_at,
+        is_sold=domain.is_sold,
+        sale_date=domain.sale_date,
+        sale_price=domain.sale_price,
+        status=domain.status,
+        notes=domain.notes,
+        tags=domain.tags,
+        roi=domain.roi,
+        created_at=domain.created_at,
+        updated_at=domain.updated_at,
+    )
+
+
+@router.put("/{domain_id}", response_model=PortfolioDomainResponse)
+async def update_portfolio_domain(
+    domain_id: int,
+    data: PortfolioDomainUpdate,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Update a portfolio domain."""
+    result = await db.execute(
+        select(PortfolioDomain).where(
+            and_(
+                PortfolioDomain.id == domain_id,
+                PortfolioDomain.user_id == current_user.id,
+            )
+        )
+    )
+    domain = result.scalar_one_or_none()
+    
+    if not domain:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Domain not found in portfolio",
+        )
+    
+    # Update fields
+    update_data = data.model_dump(exclude_unset=True)
+    for field, value in update_data.items():
+        setattr(domain, field, value)
+    
+    await db.commit()
+    await db.refresh(domain)
+    
+    return PortfolioDomainResponse(
+        id=domain.id,
+        domain=domain.domain,
+        purchase_date=domain.purchase_date,
+        purchase_price=domain.purchase_price,
+        purchase_registrar=domain.purchase_registrar,
+        registrar=domain.registrar,
+        renewal_date=domain.renewal_date,
+        renewal_cost=domain.renewal_cost,
+        auto_renew=domain.auto_renew,
+        estimated_value=domain.estimated_value,
+        value_updated_at=domain.value_updated_at,
+        is_sold=domain.is_sold,
+        sale_date=domain.sale_date,
+        sale_price=domain.sale_price,
+        status=domain.status,
+        notes=domain.notes,
+        tags=domain.tags,
+        roi=domain.roi,
+        created_at=domain.created_at,
+        updated_at=domain.updated_at,
+    )
+
+
+@router.post("/{domain_id}/sell", response_model=PortfolioDomainResponse)
+async def mark_domain_sold(
+    domain_id: int,
+    data: PortfolioDomainSell,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Mark a domain as sold."""
+    result = await db.execute(
+        select(PortfolioDomain).where(
+            and_(
+                PortfolioDomain.id == domain_id,
+                PortfolioDomain.user_id == current_user.id,
+            )
+        )
+    )
+    domain = result.scalar_one_or_none()
+    
+    if not domain:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Domain not found in portfolio",
+        )
+    
+    domain.is_sold = True
+    domain.sale_date = data.sale_date
+    domain.sale_price = data.sale_price
+    domain.status = "sold"
+    
+    await db.commit()
+    await db.refresh(domain)
+    
+    return PortfolioDomainResponse(
+        id=domain.id,
+        domain=domain.domain,
+        purchase_date=domain.purchase_date,
+        purchase_price=domain.purchase_price,
+        purchase_registrar=domain.purchase_registrar,
+        registrar=domain.registrar,
+        renewal_date=domain.renewal_date,
+        renewal_cost=domain.renewal_cost,
+        auto_renew=domain.auto_renew,
+        estimated_value=domain.estimated_value,
+        value_updated_at=domain.value_updated_at,
+        is_sold=domain.is_sold,
+        sale_date=domain.sale_date,
+        sale_price=domain.sale_price,
+        status=domain.status,
+        notes=domain.notes,
+        tags=domain.tags,
+        roi=domain.roi,
+        created_at=domain.created_at,
+        updated_at=domain.updated_at,
+    )
+
+
+@router.delete("/{domain_id}", status_code=status.HTTP_204_NO_CONTENT)
+async def delete_portfolio_domain(
+    domain_id: int,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Delete a domain from portfolio."""
+    result = await db.execute(
+        select(PortfolioDomain).where(
+            and_(
+                PortfolioDomain.id == domain_id,
+                PortfolioDomain.user_id == current_user.id,
+            )
+        )
+    )
+    domain = result.scalar_one_or_none()
+    
+    if not domain:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Domain not found in portfolio",
+        )
+    
+    await db.delete(domain)
+    await db.commit()
+
+
+@router.post("/{domain_id}/refresh-value", response_model=PortfolioDomainResponse)
+async def refresh_domain_value(
+    domain_id: int,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Refresh the estimated value of a portfolio domain."""
+    result = await db.execute(
+        select(PortfolioDomain).where(
+            and_(
+                PortfolioDomain.id == domain_id,
+                PortfolioDomain.user_id == current_user.id,
+            )
+        )
+    )
+    domain = result.scalar_one_or_none()
+    
+    if not domain:
+        raise HTTPException(
+            status_code=status.HTTP_404_NOT_FOUND,
+            detail="Domain not found in portfolio",
+        )
+    
+    # Get new valuation
+    valuation = await valuation_service.estimate_value(domain.domain, db, save_result=True)
+    
+    if "error" not in valuation:
+        domain.estimated_value = valuation["estimated_value"]
+        domain.value_updated_at = datetime.utcnow()
+        await db.commit()
+        await db.refresh(domain)
+    
+    return PortfolioDomainResponse(
+        id=domain.id,
+        domain=domain.domain,
+        purchase_date=domain.purchase_date,
+        purchase_price=domain.purchase_price,
+        purchase_registrar=domain.purchase_registrar,
+        registrar=domain.registrar,
+        renewal_date=domain.renewal_date,
+        renewal_cost=domain.renewal_cost,
+        auto_renew=domain.auto_renew,
+        estimated_value=domain.estimated_value,
+        value_updated_at=domain.value_updated_at,
+        is_sold=domain.is_sold,
+        sale_date=domain.sale_date,
+        sale_price=domain.sale_price,
+        status=domain.status,
+        notes=domain.notes,
+        tags=domain.tags,
+        roi=domain.roi,
+        created_at=domain.created_at,
+        updated_at=domain.updated_at,
+    )
+
+
+# ============== Valuation Endpoints ==============
+
+@router.get("/valuation/{domain}", response_model=ValuationResponse)
+async def get_domain_valuation(
+    domain: str,
+    current_user: User = Depends(get_current_user),
+    db: AsyncSession = Depends(get_db),
+):
+    """Get estimated value for any domain."""
+    valuation = await valuation_service.estimate_value(domain, db, save_result=True)
+    
+    if "error" in valuation:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=valuation["error"],
+        )
+    
+    return ValuationResponse(**valuation)
+

backend/app/models/__init__.py

@@ -3,5 +3,15 @@ from app.models.user import User
 from app.models.domain import Domain, DomainCheck
 from app.models.subscription import Subscription
 from app.models.tld_price import TLDPrice, TLDInfo
+from app.models.portfolio import PortfolioDomain, DomainValuation
 
-__all__ = ["User", "Domain", "DomainCheck", "Subscription", "TLDPrice", "TLDInfo"]
+__all__ = [
+    "User", 
+    "Domain", 
+    "DomainCheck", 
+    "Subscription", 
+    "TLDPrice", 
+    "TLDInfo",
+    "PortfolioDomain",
+    "DomainValuation",
+]

backend/app/models/portfolio.py

@@ -0,0 +1,113 @@
+"""Portfolio model for tracking owned domains."""
+from datetime import datetime
+from typing import Optional
+from sqlalchemy import String, DateTime, Float, Integer, Text, ForeignKey, Boolean
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.database import Base
+
+
+class PortfolioDomain(Base):
+    """
+    Portfolio Domain model for tracking domains that users own.
+    
+    Allows users to track their domain investments, values, and ROI.
+    """
+    
+    __tablename__ = "portfolio_domains"
+    
+    id: Mapped[int] = mapped_column(primary_key=True, index=True)
+    user_id: Mapped[int] = mapped_column(ForeignKey("users.id"), index=True, nullable=False)
+    
+    # Domain info
+    domain: Mapped[str] = mapped_column(String(255), nullable=False)
+    
+    # Purchase info
+    purchase_date: Mapped[Optional[datetime]] = mapped_column(DateTime, nullable=True)
+    purchase_price: Mapped[Optional[float]] = mapped_column(Float, nullable=True)
+    purchase_registrar: Mapped[Optional[str]] = mapped_column(String(100), nullable=True)
+    
+    # Current status
+    registrar: Mapped[Optional[str]] = mapped_column(String(100), nullable=True)
+    renewal_date: Mapped[Optional[datetime]] = mapped_column(DateTime, nullable=True)
+    renewal_cost: Mapped[Optional[float]] = mapped_column(Float, nullable=True)
+    auto_renew: Mapped[bool] = mapped_column(Boolean, default=True)
+    
+    # Valuation
+    estimated_value: Mapped[Optional[float]] = mapped_column(Float, nullable=True)
+    value_updated_at: Mapped[Optional[datetime]] = mapped_column(DateTime, nullable=True)
+    
+    # Sale info (if sold)
+    is_sold: Mapped[bool] = mapped_column(Boolean, default=False)
+    sale_date: Mapped[Optional[datetime]] = mapped_column(DateTime, nullable=True)
+    sale_price: Mapped[Optional[float]] = mapped_column(Float, nullable=True)
+    
+    # Status
+    status: Mapped[str] = mapped_column(String(50), default="active")  # active, expired, sold, parked
+    
+    # Notes
+    notes: Mapped[Optional[str]] = mapped_column(Text, nullable=True)
+    tags: Mapped[Optional[str]] = mapped_column(String(500), nullable=True)  # Comma-separated
+    
+    # Timestamps
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
+    updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    
+    def __repr__(self) -> str:
+        return f"<PortfolioDomain {self.domain} (user={self.user_id})>"
+    
+    @property
+    def roi(self) -> Optional[float]:
+        """Calculate ROI percentage."""
+        if not self.purchase_price or self.purchase_price == 0:
+            return None
+        
+        if self.is_sold and self.sale_price:
+            return ((self.sale_price - self.purchase_price) / self.purchase_price) * 100
+        elif self.estimated_value:
+            return ((self.estimated_value - self.purchase_price) / self.purchase_price) * 100
+        return None
+    
+    @property
+    def total_cost(self) -> float:
+        """Calculate total cost including renewals."""
+        cost = self.purchase_price or 0
+        # Add renewal costs if we had them tracked
+        return cost
+
+
+class DomainValuation(Base):
+    """
+    Domain valuation history.
+    
+    Stores historical valuations for domains to track value changes over time.
+    """
+    
+    __tablename__ = "domain_valuations"
+    
+    id: Mapped[int] = mapped_column(primary_key=True, index=True)
+    domain: Mapped[str] = mapped_column(String(255), index=True, nullable=False)
+    
+    # Valuation breakdown
+    estimated_value: Mapped[float] = mapped_column(Float, nullable=False)
+    
+    # Factors
+    length_score: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)  # 0-100
+    tld_score: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)  # 0-100
+    keyword_score: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)  # 0-100
+    brandability_score: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)  # 0-100
+    
+    # SEO metrics
+    moz_da: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)
+    moz_pa: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)
+    backlinks: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)
+    
+    # Source
+    source: Mapped[str] = mapped_column(String(50), default="internal")  # internal, estibot, godaddy
+    
+    # Timestamp
+    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
+    
+    def __repr__(self) -> str:
+        return f"<DomainValuation {self.domain}: ${self.estimated_value}>"
+

backend/app/services/valuation.py

@@ -0,0 +1,334 @@
+"""Domain valuation service."""
+import logging
+import re
+from datetime import datetime
+from typing import Optional, Dict, Any
+from sqlalchemy import select
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.models.portfolio import DomainValuation
+from app.models.tld_price import TLDPrice
+
+logger = logging.getLogger(__name__)
+
+
+# TLD value multipliers (higher = more valuable)
+TLD_VALUES = {
+    # Premium TLDs
+    "com": 1.0,
+    "net": 0.7,
+    "org": 0.65,
+    "io": 0.8,
+    "ai": 1.2,
+    "co": 0.6,
+    
+    # Tech TLDs
+    "dev": 0.5,
+    "app": 0.5,
+    "tech": 0.4,
+    "software": 0.3,
+    
+    # Country codes
+    "de": 0.5,
+    "uk": 0.5,
+    "ch": 0.45,
+    "fr": 0.4,
+    "eu": 0.35,
+    
+    # New gTLDs
+    "xyz": 0.15,
+    "online": 0.2,
+    "site": 0.2,
+    "store": 0.25,
+    "shop": 0.25,
+    
+    # Default
+    "_default": 0.2,
+}
+
+# Common high-value keywords
+HIGH_VALUE_KEYWORDS = {
+    "crypto", "bitcoin", "btc", "eth", "nft", "web3", "defi",
+    "ai", "ml", "gpt", "chat", "bot",
+    "cloud", "saas", "api", "app", "tech",
+    "finance", "fintech", "bank", "pay", "money",
+    "health", "med", "care", "fit",
+    "game", "gaming", "play", "esport",
+    "shop", "buy", "sell", "deal", "store",
+    "travel", "trip", "hotel", "fly",
+    "food", "eat", "chef", "recipe",
+    "auto", "car", "drive", "ev",
+    "home", "house", "real", "estate",
+}
+
+
+class DomainValuationService:
+    """
+    Service for estimating domain values.
+    
+    Uses a multi-factor algorithm considering:
+    - Domain length
+    - TLD value
+    - Keyword relevance
+    - Brandability
+    - Character composition
+    """
+    
+    def __init__(self):
+        self.base_value = 10  # Base value in USD
+    
+    async def estimate_value(
+        self, 
+        domain: str, 
+        db: Optional[AsyncSession] = None,
+        save_result: bool = True,
+    ) -> Dict[str, Any]:
+        """
+        Estimate the value of a domain.
+        
+        Args:
+            domain: The domain name (e.g., "example.com")
+            db: Database session (optional, for saving results)
+            save_result: Whether to save the valuation to database
+            
+        Returns:
+            Dictionary with valuation details
+        """
+        domain = domain.lower().strip()
+        
+        # Split domain and TLD
+        parts = domain.rsplit(".", 1)
+        if len(parts) != 2:
+            return {"error": "Invalid domain format"}
+        
+        name, tld = parts
+        
+        # Calculate scores
+        length_score = self._calculate_length_score(name)
+        tld_score = self._calculate_tld_score(tld)
+        keyword_score = self._calculate_keyword_score(name)
+        brandability_score = self._calculate_brandability_score(name)
+        
+        # Calculate base value
+        # Formula: base * length_mult * tld_mult * (1 + keyword_bonus + brand_bonus)
+        length_mult = length_score / 50  # 0.0 - 2.0
+        tld_mult = TLD_VALUES.get(tld, TLD_VALUES["_default"])
+        keyword_bonus = keyword_score / 200  # 0.0 - 0.5
+        brand_bonus = brandability_score / 200  # 0.0 - 0.5
+        
+        # Short premium domains get exponential boost
+        if len(name) <= 3:
+            length_mult *= 5
+        elif len(name) <= 4:
+            length_mult *= 3
+        elif len(name) <= 5:
+            length_mult *= 2
+        
+        # Calculate estimated value
+        estimated_value = self.base_value * length_mult * tld_mult * (1 + keyword_bonus + brand_bonus)
+        
+        # Apply caps
+        estimated_value = max(5, min(estimated_value, 1000000))  # $5 - $1M
+        
+        # Round to reasonable precision
+        if estimated_value < 100:
+            estimated_value = round(estimated_value)
+        elif estimated_value < 1000:
+            estimated_value = round(estimated_value / 10) * 10
+        elif estimated_value < 10000:
+            estimated_value = round(estimated_value / 100) * 100
+        else:
+            estimated_value = round(estimated_value / 1000) * 1000
+        
+        result = {
+            "domain": domain,
+            "estimated_value": estimated_value,
+            "currency": "USD",
+            "scores": {
+                "length": length_score,
+                "tld": tld_score,
+                "keyword": keyword_score,
+                "brandability": brandability_score,
+                "overall": round((length_score + tld_score + keyword_score + brandability_score) / 4),
+            },
+            "factors": {
+                "length": len(name),
+                "tld": tld,
+                "has_numbers": bool(re.search(r"\d", name)),
+                "has_hyphens": "-" in name,
+                "is_dictionary_word": self._is_common_word(name),
+            },
+            "confidence": self._calculate_confidence(length_score, tld_score, keyword_score, brandability_score),
+            "source": "internal",
+            "calculated_at": datetime.utcnow().isoformat(),
+        }
+        
+        # Save to database if requested
+        if save_result and db:
+            try:
+                valuation = DomainValuation(
+                    domain=domain,
+                    estimated_value=estimated_value,
+                    length_score=length_score,
+                    tld_score=tld_score,
+                    keyword_score=keyword_score,
+                    brandability_score=brandability_score,
+                    source="internal",
+                )
+                db.add(valuation)
+                await db.commit()
+            except Exception as e:
+                logger.error(f"Failed to save valuation: {e}")
+        
+        return result
+    
+    def _calculate_length_score(self, name: str) -> int:
+        """Calculate score based on domain length (shorter = better)."""
+        length = len(name)
+        
+        if length <= 2:
+            return 100
+        elif length <= 3:
+            return 95
+        elif length <= 4:
+            return 85
+        elif length <= 5:
+            return 75
+        elif length <= 6:
+            return 65
+        elif length <= 7:
+            return 55
+        elif length <= 8:
+            return 45
+        elif length <= 10:
+            return 35
+        elif length <= 15:
+            return 25
+        elif length <= 20:
+            return 15
+        else:
+            return 5
+    
+    def _calculate_tld_score(self, tld: str) -> int:
+        """Calculate score based on TLD value."""
+        value = TLD_VALUES.get(tld, TLD_VALUES["_default"])
+        return int(value * 100)
+    
+    def _calculate_keyword_score(self, name: str) -> int:
+        """Calculate score based on keyword value."""
+        name_lower = name.lower()
+        score = 0
+        
+        # Check for high-value keywords
+        for keyword in HIGH_VALUE_KEYWORDS:
+            if keyword in name_lower:
+                score += 30
+                break
+        
+        # Bonus for exact keyword match
+        if name_lower in HIGH_VALUE_KEYWORDS:
+            score += 50
+        
+        # Penalty for numbers
+        if re.search(r"\d", name):
+            score -= 20
+        
+        # Penalty for hyphens
+        if "-" in name:
+            score -= 30
+        
+        # Bonus for being a common word
+        if self._is_common_word(name):
+            score += 40
+        
+        return max(0, min(100, score))
+    
+    def _calculate_brandability_score(self, name: str) -> int:
+        """Calculate brandability score."""
+        score = 50  # Start neutral
+        
+        # Bonus for pronounceable names
+        if self._is_pronounceable(name):
+            score += 20
+        
+        # Bonus for memorable length
+        if 4 <= len(name) <= 8:
+            score += 15
+        
+        # Penalty for hard-to-spell patterns
+        if re.search(r"(.)\1{2,}", name):  # Triple letters
+            score -= 10
+        
+        # Penalty for confusing patterns
+        if re.search(r"[0oO][1lI]|[1lI][0oO]", name):  # 0/O or 1/l confusion
+            score -= 15
+        
+        # Bonus for all letters
+        if name.isalpha():
+            score += 10
+        
+        # Penalty for too many consonants in a row
+        if re.search(r"[bcdfghjklmnpqrstvwxyz]{5,}", name.lower()):
+            score -= 15
+        
+        return max(0, min(100, score))
+    
+    def _is_pronounceable(self, name: str) -> bool:
+        """Check if a name is likely pronounceable."""
+        vowels = set("aeiou")
+        name_lower = name.lower()
+        
+        # Must have at least one vowel
+        if not any(c in vowels for c in name_lower):
+            return False
+        
+        # Check vowel distribution
+        vowel_count = sum(1 for c in name_lower if c in vowels)
+        vowel_ratio = vowel_count / len(name) if name else 0
+        
+        return 0.2 <= vowel_ratio <= 0.6
+    
+    def _is_common_word(self, name: str) -> bool:
+        """Check if name is a common English word."""
+        # Simplified check - in production, use a dictionary API
+        common_words = {
+            "app", "web", "net", "dev", "code", "tech", "data", "cloud",
+            "shop", "store", "buy", "sell", "pay", "cash", "money",
+            "game", "play", "fun", "cool", "best", "top", "pro",
+            "home", "life", "love", "care", "help", "work", "job",
+            "news", "blog", "post", "chat", "talk", "meet", "link",
+            "fast", "quick", "smart", "easy", "simple", "free",
+        }
+        return name.lower() in common_words
+    
+    def _calculate_confidence(self, *scores: int) -> str:
+        """Calculate confidence level based on score consistency."""
+        avg = sum(scores) / len(scores)
+        variance = sum((s - avg) ** 2 for s in scores) / len(scores)
+        
+        if variance < 100 and avg > 60:
+            return "high"
+        elif variance < 200 and avg > 40:
+            return "medium"
+        else:
+            return "low"
+    
+    async def get_historical_valuations(
+        self, 
+        domain: str, 
+        db: AsyncSession,
+        limit: int = 10,
+    ) -> list:
+        """Get historical valuations for a domain."""
+        result = await db.execute(
+            select(DomainValuation)
+            .where(DomainValuation.domain == domain.lower())
+            .order_by(DomainValuation.created_at.desc())
+            .limit(limit)
+        )
+        return result.scalars().all()
+
+
+# Singleton instance
+valuation_service = DomainValuationService()
+

frontend/src/app/page.tsx

@@ -36,30 +36,30 @@ const features = [
 
 const tiers = [
   {
-    name: 'Starter',
+    name: 'Scout',
     price: '0',
     period: '',
-    description: 'For individuals exploring domains',
-    features: ['3 domains', 'Daily checks', 'Email alerts', 'Basic WHOIS'],
+    description: 'Explore the domain market',
+    features: ['5 domains', 'Daily checks', 'Email alerts', 'Basic search'],
     cta: 'Start Free',
     highlighted: false,
   },
   {
-    name: 'Professional',
-    price: '4.99',
+    name: 'Trader',
+    price: '19',
     period: '/mo',
-    description: 'For domain investors',
-    features: ['25 domains', 'Daily checks', 'Priority alerts', 'Full WHOIS', '30-day history'],
-    cta: 'Get Pro',
+    description: 'For serious domain investors',
+    features: ['50 domains', 'Hourly checks', 'SMS alerts', 'Domain valuation', 'Portfolio tracking'],
+    cta: 'Start Trading',
     highlighted: true,
   },
   {
-    name: 'Enterprise',
-    price: '9.99',
+    name: 'Tycoon',
+    price: '49',
     period: '/mo',
-    description: 'For agencies & portfolios',
-    features: ['100 domains', 'Hourly checks', 'Priority alerts', 'Full WHOIS', 'Unlimited history', 'API access'],
-    cta: 'Get Enterprise',
+    description: 'For professionals & agencies',
+    features: ['500 domains', 'Real-time checks', 'API access', 'SEO metrics', 'Bulk tools'],
+    cta: 'Go Tycoon',
     highlighted: false,
   },
 ]

frontend/src/app/pricing/page.tsx

@@ -1,89 +1,127 @@
 'use client'
 
-import { useEffect } from 'react'
+import { useEffect, useState } from 'react'
 import { Header } from '@/components/Header'
 import { Footer } from '@/components/Footer'
 import { useStore } from '@/lib/store'
-import { Check, ArrowRight } from 'lucide-react'
+import { Check, ArrowRight, Zap, TrendingUp, Crown, Briefcase, Shield, Bell, Clock, BarChart3, Code, Globe } from 'lucide-react'
 import Link from 'next/link'
+import clsx from 'clsx'
 
 const tiers = [
   {
-    name: 'Starter',
+    name: 'Scout',
+    icon: Zap,
     price: '0',
     period: '',
-    description: 'Perfect for exploring domain opportunities',
+    description: 'Explore the domain market',
     features: [
-      '3 domains in watchlist',
-      'Daily availability checks',
-      'Email notifications',
-      'Basic WHOIS data',
+      { text: '5 domains in watchlist', highlight: false },
+      { text: 'Daily availability checks', highlight: false },
+      { text: 'Email notifications', highlight: false },
+      { text: 'Basic domain search', highlight: false },
+      { text: 'TLD price overview', highlight: false },
     ],
     cta: 'Start Free',
     highlighted: false,
+    badge: null,
   },
   {
-    name: 'Professional',
-    price: '4.99',
-    period: '/month',
-    description: 'For domain investors and growing businesses',
+    name: 'Trader',
+    icon: TrendingUp,
+    price: '19',
+    period: '/mo',
+    description: 'For serious domain investors',
     features: [
-      '25 domains in watchlist',
-      'Daily availability checks',
-      'Priority email notifications',
-      'Full WHOIS data',
-      '30-day check history',
-      'Expiration date tracking',
+      { text: '50 domains in watchlist', highlight: true },
+      { text: 'Hourly availability checks', highlight: true },
+      { text: 'SMS & Telegram alerts', highlight: true },
+      { text: 'Full TLD market data', highlight: false },
+      { text: 'Domain valuation', highlight: true },
+      { text: 'Portfolio tracking (25 domains)', highlight: true },
+      { text: '90-day price history', highlight: false },
     ],
-    cta: 'Get Professional',
+    cta: 'Start Trading',
     highlighted: true,
+    badge: 'Most Popular',
   },
   {
-    name: 'Enterprise',
-    price: '9.99',
-    period: '/month',
-    description: 'For agencies and large portfolios',
+    name: 'Tycoon',
+    icon: Crown,
+    price: '49',
+    period: '/mo',
+    description: 'For professionals & agencies',
     features: [
-      '100 domains in watchlist',
-      'Hourly availability checks',
-      'Priority notifications',
-      'Full WHOIS data',
-      'Unlimited check history',
-      'Expiration date tracking',
-      'REST API access',
-      'Webhook integrations',
+      { text: '500 domains in watchlist', highlight: true },
+      { text: 'Real-time checks (10 min)', highlight: true },
+      { text: 'Priority alerts + Webhooks', highlight: true },
+      { text: 'Full REST API access', highlight: true },
+      { text: 'SEO metrics (DA/PA)', highlight: true },
+      { text: 'Unlimited portfolio', highlight: true },
+      { text: 'Bulk import/export', highlight: true },
+      { text: 'White-label reports', highlight: false },
     ],
-    cta: 'Get Enterprise',
+    cta: 'Go Tycoon',
     highlighted: false,
+    badge: 'Best Value',
   },
 ]
 
+const comparisonFeatures = [
+  { name: 'Watchlist Domains', scout: '5', trader: '50', tycoon: '500' },
+  { name: 'Check Frequency', scout: 'Daily', trader: 'Hourly', tycoon: '10 min' },
+  { name: 'Portfolio Domains', scout: '—', trader: '25', tycoon: 'Unlimited' },
+  { name: 'Domain Valuation', scout: '—', trader: '✓', tycoon: '✓' },
+  { name: 'SEO Metrics', scout: '—', trader: '—', tycoon: '✓' },
+  { name: 'API Access', scout: '—', trader: '—', tycoon: '✓' },
+  { name: 'Webhooks', scout: '—', trader: '—', tycoon: '✓' },
+  { name: 'SMS/Telegram', scout: '—', trader: '✓', tycoon: '✓' },
+]
+
 const faqs = [
   {
     q: 'How does domain monitoring work?',
-    a: 'We perform automated WHOIS and DNS queries on your watchlist domains. When a domain\'s status changes, you\'ll receive an instant notification.',
+    a: 'We perform automated WHOIS, RDAP and DNS queries on your watchlist domains. When a domain becomes available or its status changes, you\'ll receive an instant notification via your preferred channel.',
   },
   {
-    q: 'Can I upgrade or downgrade?',
-    a: 'Yes. You can change your plan at any time. When upgrading, you\'ll get immediate access to additional features.',
+    q: 'What is domain valuation?',
+    a: 'Our valuation algorithm analyzes factors like domain length, TLD popularity, keyword value, brandability, and comparable sales to estimate a domain\'s market value.',
   },
   {
-    q: 'What payment methods do you accept?',
-    a: 'We accept all major credit cards and PayPal. All transactions are secured with 256-bit SSL encryption.',
+    q: 'Can I track domains I already own?',
+    a: 'Yes! With Trader and Tycoon plans, you can add domains to your portfolio to track their value, renewal dates, and overall ROI.',
+  },
+  {
+    q: 'How accurate is the SEO data?',
+    a: 'We integrate with industry-standard APIs to provide Domain Authority, Page Authority, and backlink data. Data is refreshed weekly for accuracy.',
+  },
+  {
+    q: 'Can I upgrade or downgrade anytime?',
+    a: 'Absolutely. You can change your plan at any time. Upgrades take effect immediately, and downgrades apply at the next billing cycle.',
   },
   {
     q: 'Is there a money-back guarantee?',
-    a: 'Yes. If you\'re not satisfied within the first 14 days, we\'ll provide a full refund—no questions asked.',
+    a: 'Yes. We offer a 14-day money-back guarantee on all paid plans—no questions asked.',
   },
 ]
 
 export default function PricingPage() {
   const { checkAuth, isLoading, isAuthenticated } = useStore()
+  const [billingCycle, setBillingCycle] = useState<'monthly' | 'yearly'>('monthly')
 
   useEffect(() => {
     checkAuth()
   }, [checkAuth])
 
+  const getPrice = (basePrice: string) => {
+    if (basePrice === '0') return '0'
+    const price = parseFloat(basePrice)
+    if (billingCycle === 'yearly') {
+      return (price * 10).toFixed(0) // 2 months free
+    }
+    return basePrice
+  }
+
   if (isLoading) {
     return (
       <div className="min-h-screen flex items-center justify-center">
@@ -101,106 +139,222 @@ export default function PricingPage() {
       
       <Header />
       
-      <main className="relative pt-32 sm:pt-36 md:pt-40 lg:pt-48 pb-16 sm:pb-20 md:pb-24 px-4 sm:px-6 flex-1">
-        <div className="max-w-5xl mx-auto">
+      <main className="relative pt-28 sm:pt-32 md:pt-36 pb-16 sm:pb-20 px-4 sm:px-6 flex-1">
+        <div className="max-w-6xl mx-auto">
           {/* Header */}
-          <div className="text-center mb-12 sm:mb-16 md:mb-20">
-            <div className="inline-flex items-center gap-2 sm:gap-2.5 px-3 sm:px-4 py-1.5 sm:py-2 bg-background-secondary/80 backdrop-blur-sm border border-border rounded-full mb-6 sm:mb-8 md:mb-10 animate-fade-in">
-              <div className="w-1.5 h-1.5 rounded-full bg-accent animate-glow-pulse" />
-              <span className="text-ui-sm sm:text-ui text-foreground-muted">Simple Pricing</span>
+          <div className="text-center mb-10 sm:mb-12">
+            <div className="inline-flex items-center gap-2 px-3 py-1.5 bg-background-secondary/80 backdrop-blur-sm border border-border rounded-full mb-6 animate-fade-in">
+              <Briefcase className="w-4 h-4 text-accent" />
+              <span className="text-ui-sm text-foreground-muted">Pricing</span>
             </div>
-            <h1 className="font-display text-[2.25rem] leading-[1.1] sm:text-[3rem] md:text-[3.75rem] lg:text-[4.5rem] tracking-[-0.035em] mb-4 sm:mb-5 md:mb-6 animate-slide-up">
-              <span className="text-foreground">Choose your plan</span>
+            <h1 className="font-display text-[2.25rem] sm:text-[3rem] md:text-[3.75rem] leading-[1.1] tracking-[-0.035em] text-foreground mb-4 animate-slide-up">
+              Invest in your domain strategy
             </h1>
-            <p className="text-body-md sm:text-body-lg md:text-body-xl text-foreground-muted max-w-lg sm:max-w-xl mx-auto animate-slide-up delay-100 px-4 sm:px-0">
-              Start free and upgrade as your domain portfolio grows. 
-              All plans include core monitoring features.
+            <p className="text-body-lg text-foreground-muted max-w-2xl mx-auto mb-8 animate-slide-up">
+              From hobbyist to professional domainer. Choose the plan that matches your ambition.
             </p>
+
+            {/* Billing Toggle */}
+            <div className="inline-flex items-center gap-3 p-1.5 bg-background-secondary border border-border rounded-xl animate-slide-up">
+              <button
+                onClick={() => setBillingCycle('monthly')}
+                className={clsx(
+                  "px-4 py-2 text-ui-sm font-medium rounded-lg transition-all",
+                  billingCycle === 'monthly'
+                    ? "bg-foreground text-background"
+                    : "text-foreground-muted hover:text-foreground"
+                )}
+              >
+                Monthly
+              </button>
+              <button
+                onClick={() => setBillingCycle('yearly')}
+                className={clsx(
+                  "px-4 py-2 text-ui-sm font-medium rounded-lg transition-all flex items-center gap-2",
+                  billingCycle === 'yearly'
+                    ? "bg-foreground text-background"
+                    : "text-foreground-muted hover:text-foreground"
+                )}
+              >
+                Yearly
+                <span className="text-ui-xs px-1.5 py-0.5 bg-accent text-background rounded-full">
+                  -17%
+                </span>
+              </button>
+            </div>
           </div>
           
           {/* Pricing Cards */}
-          <div className="grid sm:grid-cols-2 md:grid-cols-3 gap-4 sm:gap-5 mb-20 sm:mb-24 md:mb-32">
+          <div className="grid md:grid-cols-3 gap-4 sm:gap-6 mb-16 sm:mb-20">
             {tiers.map((tier, i) => (
               <div
                 key={tier.name}
-                className={`relative p-5 sm:p-6 md:p-7 rounded-2xl border transition-all duration-500 animate-slide-up ${
+                className={clsx(
+                  "relative p-6 sm:p-8 rounded-2xl border transition-all duration-500 animate-slide-up",
                   tier.highlighted 
-                    ? 'bg-background-secondary border-accent/20 glow-accent' 
+                    ? 'bg-background-secondary border-accent/30 shadow-[0_0_60px_-20px_rgba(16,185,129,0.3)]' 
                     : 'bg-background-secondary/50 border-border hover:border-border-hover'
-                }`}
-                style={{ animationDelay: `${150 + i * 100}ms` }}
+                )}
+                style={{ animationDelay: `${100 + i * 100}ms` }}
               >
-                {tier.highlighted && (
+                {tier.badge && (
                   <div className="absolute -top-3 left-1/2 -translate-x-1/2">
-                    <span className="px-3 py-1 bg-accent text-background text-ui-xs sm:text-ui-sm font-medium rounded-full">
-                      Popular
+                    <span className={clsx(
+                      "px-3 py-1 text-ui-xs font-medium rounded-full",
+                      tier.highlighted 
+                        ? "bg-accent text-background" 
+                        : "bg-foreground text-background"
+                    )}>
+                      {tier.badge}
                     </span>
                   </div>
                 )}
                 
-                <div className="mb-5 sm:mb-6">
-                  <h3 className="text-body sm:text-body-md font-medium text-foreground mb-1">{tier.name}</h3>
-                  <p className="text-ui-sm sm:text-ui text-foreground-subtle mb-4 sm:mb-5 min-h-[40px]">{tier.description}</p>
-                  <div className="flex items-baseline gap-1">
-                    {tier.price === '0' ? (
-                      <span className="text-heading-md sm:text-heading-lg font-display text-foreground">Free</span>
-                    ) : (
-                      <>
-                        <span className="text-heading-md sm:text-heading-lg font-display text-foreground">${tier.price}</span>
-                        <span className="text-body-sm text-foreground-subtle">{tier.period}</span>
-                      </>
-                    )}
+                {/* Icon & Name */}
+                <div className="flex items-center gap-3 mb-4">
+                  <div className={clsx(
+                    "w-10 h-10 rounded-xl flex items-center justify-center",
+                    tier.highlighted ? "bg-accent/20" : "bg-background-tertiary"
+                  )}>
+                    <tier.icon className={clsx(
+                      "w-5 h-5",
+                      tier.highlighted ? "text-accent" : "text-foreground-muted"
+                    )} />
                   </div>
+                  <h3 className="text-body-lg font-medium text-foreground">{tier.name}</h3>
                 </div>
                 
-                <ul className="space-y-2.5 sm:space-y-3 mb-6 sm:mb-8">
+                <p className="text-body-sm text-foreground-muted mb-5">{tier.description}</p>
+                
+                {/* Price */}
+                <div className="flex items-baseline gap-1 mb-6">
+                  {tier.price === '0' ? (
+                    <span className="text-[2.5rem] font-display text-foreground">Free</span>
+                  ) : (
+                    <>
+                      <span className="text-ui text-foreground-subtle">€</span>
+                      <span className="text-[2.5rem] font-display text-foreground leading-none">
+                        {getPrice(tier.price)}
+                      </span>
+                      <span className="text-body-sm text-foreground-subtle">
+                        /{billingCycle === 'yearly' ? 'year' : 'mo'}
+                      </span>
+                    </>
+                  )}
+                </div>
+                
+                {/* Features */}
+                <ul className="space-y-3 mb-8">
                   {tier.features.map((feature) => (
-                    <li key={feature} className="flex items-start gap-2.5 sm:gap-3 text-body-xs sm:text-body-sm">
-                      <Check className="w-3.5 sm:w-4 h-3.5 sm:h-4 text-accent shrink-0 mt-0.5" strokeWidth={2.5} />
-                      <span className="text-foreground-muted">{feature}</span>
+                    <li key={feature.text} className="flex items-start gap-3 text-body-sm">
+                      <Check className={clsx(
+                        "w-4 h-4 shrink-0 mt-0.5",
+                        feature.highlight ? "text-accent" : "text-foreground-subtle"
+                      )} strokeWidth={2.5} />
+                      <span className={clsx(
+                        feature.highlight ? "text-foreground" : "text-foreground-muted"
+                      )}>
+                        {feature.text}
+                      </span>
                     </li>
                   ))}
                 </ul>
                 
+                {/* CTA */}
                 <Link
                   href={isAuthenticated ? '/dashboard' : '/register'}
-                  className={`w-full flex items-center justify-center gap-2 py-2.5 sm:py-3 rounded-xl text-ui-sm sm:text-ui font-medium transition-all duration-300 ${
+                  className={clsx(
+                    "w-full flex items-center justify-center gap-2 py-3.5 rounded-xl text-ui font-medium transition-all",
                     tier.highlighted
                       ? 'bg-accent text-background hover:bg-accent-hover'
-                      : 'bg-background-tertiary text-foreground border border-border hover:border-border-hover'
-                  }`}
+                      : 'bg-foreground text-background hover:bg-foreground/90'
+                  )}
                 >
                   {tier.cta}
-                  <ArrowRight className="w-3.5 sm:w-4 h-3.5 sm:h-4" />
+                  <ArrowRight className="w-4 h-4" />
                 </Link>
               </div>
             ))}
           </div>
+
+          {/* Feature Comparison Table */}
+          <div className="mb-16 sm:mb-20">
+            <h2 className="text-heading-md font-medium text-foreground text-center mb-8">
+              Compare Plans
+            </h2>
+            <div className="bg-background-secondary/30 border border-border rounded-2xl overflow-hidden">
+              <div className="overflow-x-auto">
+                <table className="w-full">
+                  <thead>
+                    <tr className="border-b border-border">
+                      <th className="text-left text-ui-sm text-foreground-subtle font-medium px-6 py-4">Feature</th>
+                      <th className="text-center text-ui-sm text-foreground-subtle font-medium px-4 py-4">Scout</th>
+                      <th className="text-center text-ui-sm text-accent font-medium px-4 py-4 bg-accent/5">Trader</th>
+                      <th className="text-center text-ui-sm text-foreground-subtle font-medium px-4 py-4">Tycoon</th>
+                    </tr>
+                  </thead>
+                  <tbody className="divide-y divide-border">
+                    {comparisonFeatures.map((feature) => (
+                      <tr key={feature.name}>
+                        <td className="text-body-sm text-foreground px-6 py-4">{feature.name}</td>
+                        <td className="text-body-sm text-foreground-muted text-center px-4 py-4">{feature.scout}</td>
+                        <td className="text-body-sm text-foreground text-center px-4 py-4 bg-accent/5 font-medium">{feature.trader}</td>
+                        <td className="text-body-sm text-foreground-muted text-center px-4 py-4">{feature.tycoon}</td>
+                      </tr>
+                    ))}
+                  </tbody>
+                </table>
+              </div>
+            </div>
+          </div>
+
+          {/* Trust Badges */}
+          <div className="grid grid-cols-2 md:grid-cols-4 gap-4 mb-16 sm:mb-20">
+            {[
+              { icon: Shield, text: '256-bit SSL' },
+              { icon: Bell, text: 'Instant Alerts' },
+              { icon: Clock, text: '99.9% Uptime' },
+              { icon: Globe, text: '500+ TLDs' },
+            ].map((item) => (
+              <div key={item.text} className="flex items-center justify-center gap-2 p-4 bg-background-secondary/30 border border-border rounded-xl">
+                <item.icon className="w-4 h-4 text-accent" />
+                <span className="text-ui-sm text-foreground-muted">{item.text}</span>
+              </div>
+            ))}
+          </div>
           
           {/* FAQ Section */}
           <div className="max-w-3xl mx-auto">
-            <div className="text-center mb-8 sm:mb-10 md:mb-12">
-              <h2 className="font-display text-[1.75rem] sm:text-[2.5rem] md:text-[3.25rem] lg:text-[4rem] leading-[1.1] tracking-[-0.03em] text-foreground mb-3 sm:mb-4">
-                Frequently asked questions
-              </h2>
-              <p className="text-body-sm sm:text-body md:text-body-lg text-foreground-muted">
-                Everything you need to know about pounce.
-              </p>
-            </div>
+            <h2 className="text-heading-md font-medium text-foreground text-center mb-8">
+              Frequently Asked Questions
+            </h2>
             
-            <div className="space-y-3 sm:space-y-4">
+            <div className="space-y-3">
               {faqs.map((faq, i) => (
                 <div 
                   key={i} 
-                  className="p-5 sm:p-6 bg-background-secondary/50 border border-border rounded-2xl
-                             hover:border-border-hover transition-all duration-300"
+                  className="p-5 sm:p-6 bg-background-secondary/50 border border-border rounded-xl hover:border-border-hover transition-all"
                 >
-                  <h3 className="text-body sm:text-body-md font-medium text-foreground mb-2 sm:mb-3">{faq.q}</h3>
-                  <p className="text-body-xs sm:text-body-sm text-foreground-muted leading-relaxed">{faq.a}</p>
+                  <h3 className="text-body font-medium text-foreground mb-2">{faq.q}</h3>
+                  <p className="text-body-sm text-foreground-muted leading-relaxed">{faq.a}</p>
                 </div>
               ))}
             </div>
           </div>
+
+          {/* CTA */}
+          <div className="mt-16 sm:mt-20 text-center">
+            <p className="text-body text-foreground-muted mb-6">
+              Not sure which plan is right for you?
+            </p>
+            <Link
+              href="/contact"
+              className="inline-flex items-center gap-2 px-6 py-3 bg-background-secondary border border-border text-foreground font-medium rounded-xl hover:border-border-hover transition-all"
+            >
+              Contact Sales
+              <ArrowRight className="w-4 h-4" />
+            </Link>
+          </div>
         </div>
       </main>
 

frontend/src/app/tld-pricing/[tld]/page.tsx

@@ -74,7 +74,8 @@ interface DomainCheckResult {
   expiration_date?: string
 }
 
-// Registrar URLs
+// Registrar URLs with affiliate parameters
+// Note: Replace REF_CODE with actual affiliate IDs when available
 const REGISTRAR_URLS: Record<string, string> = {
   'Namecheap': 'https://www.namecheap.com/domains/registration/results/?domain=',
   'Porkbun': 'https://porkbun.com/checkout/search?q=',
@@ -82,6 +83,8 @@ const REGISTRAR_URLS: Record<string, string> = {
   'Google Domains': 'https://domains.google.com/registrar/search?searchTerm=',
   'GoDaddy': 'https://www.godaddy.com/domainsearch/find?domainToCheck=',
   'porkbun': 'https://porkbun.com/checkout/search?q=',
+  'Dynadot': 'https://www.dynadot.com/domain/search?domain=',
+  'Hover': 'https://www.hover.com/domains/results?q=',
 }
 
 // Related TLDs

frontend/src/lib/api.ts

@@ -296,6 +296,148 @@ class ApiClient {
       }>
     }>('/tld-prices/trending')
   }
+
+  // ============== Portfolio ==============
+  
+  async getPortfolio(
+    status?: string,
+    sortBy = 'created_at',
+    sortOrder = 'desc',
+    limit = 100,
+    offset = 0
+  ) {
+    const params = new URLSearchParams({
+      sort_by: sortBy,
+      sort_order: sortOrder,
+      limit: limit.toString(),
+      offset: offset.toString(),
+    })
+    if (status) {
+      params.append('status', status)
+    }
+    return this.request<PortfolioDomain[]>(`/portfolio?${params.toString()}`)
+  }
+
+  async getPortfolioSummary() {
+    return this.request<PortfolioSummary>('/portfolio/summary')
+  }
+
+  async addPortfolioDomain(data: PortfolioDomainCreate) {
+    return this.request<PortfolioDomain>('/portfolio', {
+      method: 'POST',
+      body: JSON.stringify(data),
+    })
+  }
+
+  async getPortfolioDomain(id: number) {
+    return this.request<PortfolioDomain>(`/portfolio/${id}`)
+  }
+
+  async updatePortfolioDomain(id: number, data: Partial<PortfolioDomainCreate>) {
+    return this.request<PortfolioDomain>(`/portfolio/${id}`, {
+      method: 'PUT',
+      body: JSON.stringify(data),
+    })
+  }
+
+  async deletePortfolioDomain(id: number) {
+    return this.request<void>(`/portfolio/${id}`, {
+      method: 'DELETE',
+    })
+  }
+
+  async markDomainSold(id: number, saleDate: string, salePrice: number) {
+    return this.request<PortfolioDomain>(`/portfolio/${id}/sell`, {
+      method: 'POST',
+      body: JSON.stringify({
+        sale_date: saleDate,
+        sale_price: salePrice,
+      }),
+    })
+  }
+
+  async refreshDomainValue(id: number) {
+    return this.request<PortfolioDomain>(`/portfolio/${id}/refresh-value`, {
+      method: 'POST',
+    })
+  }
+
+  async getDomainValuation(domain: string) {
+    return this.request<DomainValuation>(`/portfolio/valuation/${domain}`)
+  }
+}
+
+// ============== Types ==============
+
+export interface PortfolioDomain {
+  id: number
+  domain: string
+  purchase_date: string | null
+  purchase_price: number | null
+  purchase_registrar: string | null
+  registrar: string | null
+  renewal_date: string | null
+  renewal_cost: number | null
+  auto_renew: boolean
+  estimated_value: number | null
+  value_updated_at: string | null
+  is_sold: boolean
+  sale_date: string | null
+  sale_price: number | null
+  status: string
+  notes: string | null
+  tags: string | null
+  roi: number | null
+  created_at: string
+  updated_at: string
+}
+
+export interface PortfolioSummary {
+  total_domains: number
+  active_domains: number
+  sold_domains: number
+  total_invested: number
+  total_value: number
+  total_sold_value: number
+  unrealized_profit: number
+  realized_profit: number
+  overall_roi: number
+}
+
+export interface PortfolioDomainCreate {
+  domain: string
+  purchase_date?: string
+  purchase_price?: number
+  purchase_registrar?: string
+  registrar?: string
+  renewal_date?: string
+  renewal_cost?: number
+  auto_renew?: boolean
+  notes?: string
+  tags?: string
+}
+
+export interface DomainValuation {
+  domain: string
+  estimated_value: number
+  currency: string
+  scores: {
+    length: number
+    tld: number
+    keyword: number
+    brandability: number
+    overall: number
+  }
+  factors: {
+    length: number
+    tld: string
+    has_numbers: boolean
+    has_hyphens: boolean
+    is_dictionary_word: boolean
+  }
+  confidence: string
+  source: string
+  calculated_at: string
 }
 
 export const api = new ApiClient()