Lohnt sich dein eigenes VerifiedDR?

Build me a local search and AI visibility tracker like VerifiedDR for one site. Requirements:

- Use Node 22, Express, better-sqlite3, and server-rendered HTML with a little
  vanilla JS; bind the app to localhost:4173.
- A settings page stores one domain, brand aliases, and 20 buyer questions in
  SQLite; API secrets stay in .env.
- Connect Google Search Console with OAuth and import clicks, impressions, CTR,
  and average position for the last 28 days by query and landing page.
- On demand, ask the 20 questions through OpenAI Responses, Perplexity, and
  Gemini APIs; store answers, citations, run date, and brand/domain mentions.
- Show 7-day and 28-day GSC changes, mention rate per model, cited domains, and
  a history sparkline for every question on the local dashboard.
- Crawl the sitemap weekly with undici and cheerio; record status, title,
  canonical, noindex, and broken internal links for every page.
- Build an action queue: lost mentions first, falling GSC pages second, and
  broken or noindex pages third; every item links to its evidence.
- Schedule checks with node-cron, retain raw JSON, and export every run as
  Markdown plus CSV in ./exports/.
- No accounts or telemetry. Keep it local except for OAuth and API calls.
  Skip TrueDR, external backlink data, competitors, and the partner marketplace.
- README: Google OAuth setup, required keys, API cost estimates, backup and
  restore commands, and how to run one manual check.