Free AI Visibility Checker

What this AI visibility checker checks

This free AI visibility checker runs all 9 of AuditZap's AI-visibility checks on the URL you enter, in a single pass. It looks at whether AI search engines can reach your site, whether the machine-readable signals they rely on are present, and whether your content is structured the way answer engines prefer to quote. You get the same 9-check readout and AI Visibility score that a full audit computes, scoped to the page you enter.

The 9 checks are: llms.txt file, AI crawler access (robots.txt), AI crawler firewall blocking (CDN-level), AI citation schema, answer engine schema, semantic content structure, content freshness signals, author attribution schema, and question-format headings. This is generative engine optimisation (GEO): being read and cited inside AI answers, not just ranked in the ten blue links.

Why AI visibility matters now

A growing share of search happens inside AI assistants like ChatGPT, Perplexity, and Google AI overviews, which read the web, summarise it, and cite a handful of sources. If those systems cannot reach your content, or cannot tell what it is about, they cannot cite you, and you lose visibility in a fast-growing channel that traditional SEO tools do not measure.

The nine signals here are the ones that decide whether an answer engine can find, trust, and quote your pages. Most sites pass some and miss others, and the misses are usually cheap to fix once you can see them.

When robots.txt says yes but your CDN says no

The single highest-impact finding this tool surfaces is a CDN-level block. robots.txt is only a request, and many CDNs and firewalls, Cloudflare among them, block AI crawlers at the network level on their default settings. So a request identifying as GPTBot gets an HTTP 403 even though your robots.txt welcomes it, and a robots.txt-only checker never sees the block.

This checker probes your URL twice, once as a normal browser and once as GPTBot, and compares them. If the browser loads but the bot is turned away, your CDN is the thing blocking AI crawlers, and no robots.txt edit will fix it. You allow the verified AI crawlers in your CDN bot-management settings instead.

How to act on the results

Work through the checks that warn, starting with access before structure, since a blocked crawler cannot benefit from good schema:

• Fix access first: make sure robots.txt and your CDN both allow the AI crawlers you want citing you.
• Add the schema the checks flag: Organization or Person citation schema, FAQPage or QAPage answer-engine schema, and author attribution on articles.
• Structure content for extraction: wrap primary content in semantic landmarks, keep publish and modified dates machine-readable, and phrase key headings as the questions people ask.
• Publish an llms.txt at your root pointing AI systems at your best pages.

Honest limits

This tool checks the single URL you enter and reports the 9 AI-visibility checks plus the AI Visibility score for that page. It cannot guarantee any given AI system will crawl or cite you, since compliance is voluntary. To generate a starter file for the llms.txt finding, use the LLMs.txt Generator; to focus on crawler access, use the LLMs.txt Checker; to validate the JSON-LD behind the schema checks, use the Structured Data Checker. For all 9 AI-visibility checks across your whole site alongside your traditional SEO, with AI fix instructions for each issue, run a full free audit.