Digital Vehicle Purchasing — From Form to Instant Payment
AutoAnkauf52.de digitizes the entire used car purchasing process in Germany. Instead of driving to a dealer and negotiating for hours, sellers can evaluate their vehicle online, set their desired price, and receive a binding offer within 24 hours.
SPA State Machine — Single URL, Complete Customer Journey
The entire user experience runs under a single URL (/) as a Single Page Application with client-side state transitions. The browser back button is supported via popstate. The 4-step wizard progressively collects vehicle data:
- Step 1 — Vehicle: Brand, model, year, mileage, fuel type, transmission, engine power
- Step 2 — Condition: 4 damage categories (accident/paint/engine/parts) with detail text fields
- Step 3 — Photos: Drag & drop + file picker, Base64 encoding, server upload
- Step 4 — Contact: Personal data, postal code, city + GDPR consent
At the end, the seller optionally enters their desired price — the evaluation is deliberately not automated but performed by experienced experts.
SEO Landing Pages for Special Segments
7 standalone landing pages with deep domain expertise were created for the most important vehicle segments:
- /motorschaden — 8 damage types (piston seizure, timing belt failure etc.), 8 symptoms
- /unfallwagen — 8 accident categories (hail, water, fire, total loss), photo tips
- /getriebeschaden — 8 transmission types, repair vs. sale cost comparison
- /firmenkunden — B2B fleet purchasing with 3 SLA levels
- /ki-bewertung — AI-powered vehicle evaluation in 3 steps
- /unser-versprechen — Fixed-price guarantee, SEPA instant timeline, photo checklist
Landing Page — 15 Sections for Maximum Conversion
The main page consists of ~15 sections: Hero with integrated Step0 form (brand/model/year/mileage), sticky trust badges (fixed price, SEPA instant, 24h pickup, WhatsApp), how-it-works process, advantages grid, fixed-price guarantee banner, 20 car brand logos, Trustpilot widget, damaged vehicle teaser, B2B CTA and FAQ with Radix Accordion.
Admin Panel — 7 Modules for Complete Control
The dark-themed admin panel with DE/EN language support includes:
- Dashboard: 4 statistics cards, recent requests table
- Vehicle Requests: Search, status filter, pagination (10/page), quote sending via Gmail API
- User Management: Superadmin/Admin/Employee roles, Active/Inactive status
- Settings: Company details, notification settings
- Schema Markup: JSON-LD schema editor with page-based management
- Email Logs: Send history, type filter, error tracking
- CAFE Framework: Most comprehensive module (1109 lines) — BrandLock, llms.txt, Schema.org, E-E-A-T, Entity SEO
CAFE Framework — 7 Strategic Layers
The Creatys AI Framework Enterprise methodology was fully implemented:
- GEO — llms.txt (148 lines), GPTBot/ClaudeBot/PerplexityBot allowed in robots.txt
- E-E-A-T — 6 years experience, 15,000+ vehicles, 4.9 star rating
- Entity SEO — Schema.org AutoDealer, JSON-LD, sameAs social media linking
- AI Gap Analysis — Target queries: "sell car Bremen" etc.
- Conversion Speed — Golden 5 Minutes: phone 30s, WhatsApp 60s, form 5min
- BrandLock — Protected terms, forbidden spellings, anti-hallucination rules
- AI-Ready Architecture — Semantic HTML, JSON-LD, OpenGraph, bot access policies
Knowledge Base & Integrations
A categorized knowledge base (/wissen) with search, Markdown rendering and 6 topic categories provides SEO-relevant content. 5 integrations ensure smooth operations: WhatsApp Business, Google Maps, Trustpilot (5 widget variants), Google Ads conversion tracking and Gmail API (OAuth2) for 5 email types.
Technical Infrastructure
Deployment is on a DigitalOcean VPS with Nginx as reverse proxy, PM2 as process manager, UFW firewall and Let's Encrypt SSL. The database comprises 7 PostgreSQL tables with Prisma ORM.