Tool · Content Parity Checker

See your site the way AI crawlers do

We fetch your page four times — once as a normal browser, then as GPTBot, ClaudeBot, and PerplexityBot — and compare what they get. Cloaking, JavaScript-only pages, hydration mismatches, and paywall gates show up instantly. Free with a Crawl Readiness account.

Why parity matters

Google's guidelines have always required that the content you show a crawler match the content you show a human. AI systems now enforce the same rule — if ClaudeBot gets a blank page while your visitors see a rich article, Claude can't cite you. Common causes:

  • Client-side rendering — the crawler receives a JS shell it can't execute
  • Cloaking — different HTML served to non-human user-agents (violates search guidelines)
  • Paywall gates — humans see the content, crawlers get a signup wall
  • Hydration mismatches — SSR HTML differs from the client render
  • Bot-specific 403s or empty responses — WAF or Cloudflare rules blocking AI UAs at the edge

How this tool works

  1. We fetch your page as a normal Chrome browser
  2. Then in parallel as GPTBot, ClaudeBot, and PerplexityBot (with their real user-agent strings)
  3. We measure word overlap, response size, HTTP status, title, and meta description
  4. We flag high/medium/low-severity issues and give an overall parity score

Note: this tool sees your public server response. Some sites gate crawlers by IP range too — we can't detect that; a rich crawler response here doesn't rule out edge-based cloaking. Google's cloaking policy applies.