THE SHORT ANSWER
Robots access is a gate,
not a visibility score.
If a relevant search crawler is disallowed from `/`, the crawler cannot retrieve the homepage under those rules. If it is allowed, that removes one technical barrier but does not establish indexing, recommendation, or citation.
OFFICIAL AGENTS
What the four checks mean
OpenAI says publishers should allow this agent for content to be discoverable and included in ChatGPT search summaries and snippets.
OpenAI documentation →Claude-SearchBotAnthropic identifies this as the crawler that indexes content to improve relevance and accuracy in Claude search results.
Anthropic documentation →PerplexityBotPerplexity identifies this as the crawler used to surface and link websites in its search results.
Perplexity documentation →GooglebotGooglebot crawls content for Google Search, whose indexed pages can also support Google's AI search experiences.
Google documentation →READ THE RESULT CORRECTLY
Allowed does not mean cited.
- 01Robots rules
This tool evaluates the homepage path against the returned user-agent groups, Allow rules, and Disallow rules.
- 02Network access
A CDN or firewall can still deny a legitimate crawler even when robots.txt allows it. Server logs are the stronger evidence.
- 03Retrieval and selection
Indexing, relevance, authority, answer quality, and engine-specific systems determine whether a page is retrieved or cited.
ACCESS IS ONLY STEP ONE
Make the page useful
after it can be fetched.
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