How to Check If ChatGPT Can See Your Website (Free Test)

If ChatGPT can't see your website, it can't recommend it — no matter how good your content is. The good news: checking whether that's actually happening takes about five minutes, and most of the time the fix is a single line of text.

Why your website might already be invisible to ChatGPT

There are four common reasons a site never shows up in AI answers: a robots.txt rule that blocks AI bots (often added by accident during a WordPress security plugin update), no llms.txt file pointing crawlers to your best content, content that only renders after JavaScript runs (many AI crawlers don't execute JS reliably), or simply never having been crawled yet because nothing links to the page.

The 5-minute test

Step 1: Check your robots.txt for AI bot rules

Open yoursite.com/robots.txt in a browser and look for lines mentioning GPTBot, PerplexityBot, ClaudeBot, or a blanket User-agent: * / Disallow: / rule. See our full list of 27 AI crawlers and how to configure each for the complete reference.

Step 2: Simulate an AI crawler request

Run this from a terminal, swapping in your own domain:

curl -A "Mozilla/5.0 (compatible; GPTBot/1.1; +https://openai.com/gptbot)" -I https://yoursite.com/

A 200 status means the page loaded normally for that bot. A 403 or 999 means something in your server, CDN, or WAF is actively blocking it — this happens even when robots.txt itself looks fine, because firewalls and bot-protection services often maintain their own blocklists.

Step 3: Check if your content needs JavaScript to appear

Right-click any page and choose "View Page Source." If your main content — headings, paragraphs, product details — is missing from that raw HTML and only appears after the page fully renders in a browser, most AI crawlers will miss it too. Server-side rendering or static generation fixes this.

Step 4: Look for an llms.txt file

Check yoursite.com/llms.txt. It's not required, but it's the clearest signal you can give AI systems about which pages matter most on your site. If you don't have one yet, here's what it is and why it helps.

Step 5: Run an automated check

If you'd rather skip the manual steps, GeoReady's free AI Citation Checker runs all four checks against your URL in about ten seconds and tells you exactly what's blocking you, if anything.

What to do if ChatGPT can't see your site

• Remove or narrow any blanket "disallow all" rule in robots.txt and explicitly allow the AI bots you want.
• Add an llms.txt file pointing to your highest-value pages.
• Move critical content out of client-side-only JavaScript rendering.
• Add structured data (Article, FAQPage, Organization) so AI systems can parse your content unambiguously.

For the full picture beyond this one test, see our complete guide to Generative Engine Optimization.