Clerion
  • Explore ClerionFeaturesUse casesMCP server
    Feature pagesAI trafficRevenue by sourceCustom eventsError intelligenceBriefing and signalsSecurity
  • Docs
  • Pricing
  • Privacy-first toolsPlausibleFathomMatomo
    Large platformsGoogle AnalyticsMixpanelCloudflare Web AnalyticsPostHogAmplitude
  • LearnBlogHelp centreChangelog
    CompanyAbout usBrandContact
Sign inStart free trial ›
  • Explore ClerionFeaturesUse casesMCP server
    Feature pagesAI trafficRevenue by sourceCustom eventsError intelligenceBriefing and signalsSecurity
  • Docs
  • Pricing
  • Privacy-first toolsPlausibleFathomMatomo
    Large platformsGoogle AnalyticsMixpanelCloudflare Web AnalyticsPostHogAmplitude
  • LearnBlogHelp centreChangelog
    CompanyAbout usBrandContact
  • Contact sales
Sign inStart 14-day trial

On this page

  • What "seeing" your site means
  • The five things that make a site invisible
  • How to check by hand
  • The ten-second version
  • What to do if the answer is no
  • Frequently asked questions
  1. Blog
  2. AI visibility
  3. Can ChatGPT see my website? How to check in ten seconds (2026)
  1. Blog
  2. AI visibility
  3. Can ChatGPT see my website? How to check in ten seconds (2026)
Can ChatGPT see my website? How to check in ten seconds (2026)

Can ChatGPT see my website? How to check in ten seconds (2026)

AI visibilityUpdated September 20265 min read

ChatGPT can see your website if two things are true: its crawlers are allowed to fetch your pages, and the words on those pages exist in the HTML your server sends, not only after JavaScript runs. OpenAI uses three crawlers with three jobs. GPTBot collects pages for training, OAI-SearchBot indexes pages so ChatGPT search can link to them, and ChatGPT-User fetches a page live when someone asks about it. Each one reads your robots.txt separately, and none of them executes JavaScript. The quickest check is the free Is it agentic? scan, which tests all of this in about ten seconds. The manual version takes five minutes and is below.

What "seeing" your site means

People ask this question meaning three different things, and the answer differs for each.

What you wantWhich crawlerWhat has to be true
ChatGPT can cite your page in an answer with a linkOAI-SearchBotAllowed in robots.txt, page in the index, text readable without JavaScript
ChatGPT can open your page when a user pastes the link or asks about youChatGPT-UserAllowed in robots.txt, not blocked by a bot firewall or login wall
Your content is in the training data of future modelsGPTBotAllowed in robots.txt

If you sell something, the first two rows are the ones that bring visitors. The third one is a policy decision that does not change whether ChatGPT can recommend you this month.

The five things that make a site invisible

  1. A Disallow line in robots.txt. The most common cause, and often unintentional: a rule written to block one training bot in 2023 that also blocks the search and user-fetch bots. Some hosting platforms and WordPress security plugins add these by default.
  2. A bot firewall. Cloudflare's AI bot blocking, Bot Fight Mode, and similar settings at other CDNs return a challenge page or a 403 to crawlers. Your robots.txt can say Allow while the firewall says no.
  3. Text that only appears after JavaScript runs. A joint study by Vercel and MERJ looked at more than 500 million GPTBot fetches and found no evidence of JavaScript execution. ClaudeBot downloaded script files in about a quarter of its requests and never ran them. If your product page is an empty shell filled in by a framework in the browser, the crawler reads the shell.
  4. A login, paywall or cookie wall in front of the content. Crawlers do not click Accept.
  5. No path to the page. A page linked from nowhere, missing from the sitemap and noindexed by mistake is a page no crawler finds.

How to check by hand

Step one: read your robots.txt. Open yoursite.com/robots.txt. Look for these user agents and for any Disallow: / under User-agent: *.

User-agent: GPTBot
User-agent: OAI-SearchBot
User-agent: ChatGPT-User

A rule only applies to the agent named above it. If none of the three is named, the wildcard rules apply to them. An Allow: / under each name removes all doubt.

Step two: view the source, not the page. In your browser, open your most important page and press View Source. Search the source for a sentence from the middle of the page. If it is there, the crawler can read it. If the source is a few hundred bytes of script tags and a root element, the crawler cannot.

Step three: fetch the page as the bot does. From a terminal:

curl -A "OAI-SearchBot" -I https://yoursite.com/

A 200 is good. A 403, a 503 or a redirect to a challenge page means a firewall is in the way.

Step four: read the server logs. If you can, filter the last month of access logs by user agent for the three names above. Pages the crawlers fetched are pages ChatGPT can talk about. If the list is empty and the checks above pass, the site may be too new or too unlinked to have been discovered yet.

The ten-second version

The Is it agentic? scan runs seven checks against your homepage: robots.txt rules for GPTBot, ClaudeBot, PerplexityBot and the other assistant crawlers, how many words are readable without JavaScript, the title and meta description, llms.txt, structured data, sitemap.xml and the main heading. It returns a score out of 100 with the fixes in order. It is free and needs no account. We built it, so weigh that. It does not read your server logs, so it tells you whether ChatGPT can see your site, not whether it has.

What to do if the answer is no

The fixes are in how to make your website readable by AI crawlers. In short: name the crawlers you want in robots.txt with an Allow, turn off AI bot blocking at your CDN for the crawlers you want, and make sure your pages arrive with their text in the HTML. Then give it a few weeks and look for utm_source=chatgpt.com in your analytics. How to track ChatGPT traffic to your website explains what those visits look like.

Frequently asked questions

Does blocking GPTBot stop ChatGPT from linking to my site?

No. GPTBot is the training crawler. Citations in ChatGPT search come from OAI-SearchBot, and live page reads come from ChatGPT-User. You can block training and still be cited, as long as the other two are allowed.

My robots.txt allows everything. Why does ChatGPT still not know my site?

Two usual reasons. A CDN or firewall setting is blocking the crawlers before robots.txt matters, or the page text only exists after JavaScript runs. View the page source and fetch it with a crawler user agent to tell which.

Can I see ChatGPT's crawlers in Google Analytics or Clerion?

No. Crawlers do not run JavaScript, so no browser-side analytics tool records them. Use server logs or your CDN's bot reports. Clicks from ChatGPT by real people do show up, tagged with utm_source=chatgpt.com.

How long after fixing robots.txt does ChatGPT see the site?

There is no published schedule. Crawlers commonly return within days once a page is linked and in the sitemap, but indexing for search citations can take longer. Keep the pages linked and in your sitemap so they are found.

Clerion

Website intelligence for AI founders.See what AI sends you, and what to fix.

Start free trial ›

14 days free, no card.

Clerion

Website intelligence for AI founders.

Product

  • Features
  • Use cases
  • Docs
  • Quickstart
  • MCP server
  • Pricing
  • Sign in

Compare

  • vs Google Analytics
  • vs Plausible
  • vs Fathom
  • vs Matomo
  • vs Mixpanel
  • vs Cloudflare
  • vs PostHog
  • vs Amplitude

Resources

  • Blog
  • Help centre
  • Is it agentic?
  • What is SI?
  • What is Clerion?
  • Changelog
  • Sitemap

Company

  • About us
  • CareersHiring
  • Brand
  • Contact
  • Security
  • Privacy policy
  • Terms

Compliance

  • GDPR
  • Schrems II
  • ePrivacy
  • PECR
  • COPPA
  • CCPA
  • Our data journey
Product
  • Features
  • Use cases
  • Docs
  • Quickstart
  • MCP server
  • Pricing
  • Sign in
Compare
  • vs Google Analytics
  • vs Plausible
  • vs Fathom
  • vs Matomo
  • vs Mixpanel
  • vs Cloudflare
  • vs PostHog
  • vs Amplitude
Resources
  • Blog
  • Help centre
  • Is it agentic?
  • What is SI?
  • What is Clerion?
  • Changelog
  • Sitemap
Company
  • About us
  • CareersHiring
  • Brand
  • Contact
  • Security
  • Privacy policy
  • Terms
Compliance
  • GDPR
  • Schrems II
  • ePrivacy
  • PECR
  • COPPA
  • CCPA
  • Our data journey

Clerion (“Clerion”), at getclerion.com and clerion.si, is website intelligence for AI founders: web analytics, AI-assistant traffic, conversions and revenue by source, SEO and AI-readiness, speed and errors from one script tag. It finds the patterns in the data, ranks what changed and tells you the fix. Designed with taste: one typeface, no accent colour, and nothing that moves unless it tells you something. AI is now also called SI, super intelligence; the channel is the same. It sets no cookies, stores no personal data, needs no consent banner, and holds data in the EU. Every briefing is written from your own numbers, and every figure in it comes from your data rather than from the model. Clerion is a software product and does not provide marketing, legal or advisory services. We have no ad budget: if Clerion helps you, telling a friend does more for us than any campaign could.

© 2026 Clerion. Independent and self-funded.

Served from the Netherlands.