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DevMarDe
Technical

Crawler Tester

Test whether GPTBot, PerplexityBot, ClaudeBot and Google-Extended can actually fetch your pages. Most blocked sites do not know they are blocked.

Free10 second test
  • Four crawler user agents
  • robots.txt rule per agent
  • Status code per fetch
  • Fix suggestions

We fetch the URL four times, once with each AI crawler's user agent, and read your robots.txt for each. The result shows the status code, the rule that applied and what to change.

Public URLs only. A handful of requests; nothing is stored.

Real requests

We fetch with each crawler user agent and report the status code.

robots.txt, parsed

Shows which rule applies to each agent, not just whether the file exists.

Per-page detail

Homepage passing does not mean your blog is reachable. Test any URL.

What it checks

Four crawlers, any URL

  1. 01
    GPTBot
    OpenAI crawler access.
  2. 02
    PerplexityBot
    Perplexity crawler access.
  3. 03
    ClaudeBot
    Anthropic crawler access.
  4. 04
    Google-Extended
    Gemini grounding access.
  5. 05
    robots.txt
    Directives that apply to each agent.
  6. 06
    Edge rules
    403 and 429 responses that robots.txt does not explain.

Questions people ask

Should I allow every crawler?
Not necessarily. This tells you what is happening so the choice is deliberate.
Does it slow my site?
No. It is a handful of requests.
Can I test staging?
Only if it is publicly reachable.
Other tools

Would rather we did it?

The AI visibility service starts from your audit and clears the high-impact findings in two to four weeks.