Top 100 / chatgpt.com
42
Invisible to machines
1 of 14 AI agents get the full page at https://chatgpt.com/. Checked 2026-09-25 09:17 UTC.
chatgpt.com scores 42 out of 100 for machine visibility, number 93 of the 100 most visited websites checked on 2026-09-25. 1 of 14 AI agents receive the full page: 1 of 8 training crawlers, 0 of 3 AI search indexes and 0 of 3 assistant fetchers. 4 are refused in robots.txt and 9 are refused at the HTTP level. GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-SearchBot, Claude-User, PerplexityBot, Perplexity-User, Meta-ExternalAgent, Amazonbot, Bytespider, CCBot received a bot-management challenge instead of the page. Googlebot itself is partial: Different content than humans receive. There is no llms.txt.
youfull pagedegradedblockedunknown
Human
- Status
- 200
- Title
- ChatGPT: Chat, Work, Create & Code with AI
- H1
- What’s on the agenda today?
- Words
- 99
- Scripts
- 16 tags · 442 KB
- Meta robots
- index, follow
- Canonical
- https://chatgpt.com/
- Server
- cloudflare
Machine
- robots.txt
- 14 groups · 6 sitemaps
- llms.txt
- missing
- llms-full.txt
- missing
- X-Robots-Tag
- none
- Blocked
- Google-Extended, GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-SearchBot, Claude-User, PerplexityBot, Perplexity-User, Meta-ExternalAgent, Amazonbot, Bytespider, CCBot
- Degraded
- none
- Challenged
- GPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-SearchBot, Claude-User, PerplexityBot, Perplexity-User, Meta-ExternalAgent, Amazonbot, Bytespider, CCBot
Gaps
- high13 of 14 AI agents are blockedAssistants asked about this page will guess, or cite someone else. Deliberate for a paywalled publisher. Otherwise this is the biggest gap on the list.
- mediumBot-management challenge served to crawlersGPTBot, OAI-SearchBot, ChatGPT-User, ClaudeBot, Claude-SearchBot, Claude-User, PerplexityBot, Perplexity-User, Meta-ExternalAgent, Amazonbot, Bytespider, CCBot received an interstitial instead of the page. A robots.txt rule is an honest block. A challenge hides the page without saying so.
- medium2 agents get a degraded pageGooglebot: Different content than humans receive · Bingbot: Different content than humans receive
- lowNo llms.txtOptional, but a short curated index at /llms.txt is the cheapest way to tell assistants what matters on this site.
Every agent
| Agent | Type | robots.txt | Fetch | Words | Result |
|---|---|---|---|---|---|
| Human (Chrome)You | Human | allowedAllow: /$ | 200358 ms | 99 | visible HTTP 200, 99 words |
| GooglebotGoogle · Classic search index. Also feeds AI Overviews. | Search engine | allowedAllow: /$ | 200348 ms | 97 | partial Different content than humans receive |
| Google-ExtendedGoogle · Robots-only token controlling Gemini training use. Never fetches on its own. | AI training | disallowedDisallow: / | n/a | blocked robots.txt Disallow: / (group: Google-Extended) | |
| GPTBotOpenAI · Training crawler for OpenAI models. | AI training | allowedAllow: /$ | 403 challenge80 ms | 0 | blocked Bot challenge served (HTTP 403, cf-mitigated=challenge) |
| OAI-SearchBotOpenAI · Indexes for ChatGPT search results and citations. | AI search index | allowedAllow: /$ | 403 challenge79 ms | 0 | blocked Bot challenge served (HTTP 403, cf-mitigated=challenge) |
| ChatGPT-UserOpenAI · Live fetch when a user asks ChatGPT about a page. | AI assistant (live fetch) | allowedAllow: /$ | 403 challenge78 ms | 0 | blocked Bot challenge served (HTTP 403, cf-mitigated=challenge) |
| ClaudeBotAnthropic · Training crawler for Claude models. | AI training | allowedAllow: /$ | 403 challenge78 ms | 0 | blocked Bot challenge served (HTTP 403, cf-mitigated=challenge) |
| Claude-SearchBotAnthropic · Indexes for Claude web search. | AI search index | allowedAllow: /$ | 403 challenge78 ms | 0 | blocked Bot challenge served (HTTP 403, cf-mitigated=challenge) |
| Claude-UserAnthropic · Live fetch when a user asks Claude about a page. | AI assistant (live fetch) | allowedAllow: /$ | 403 challenge77 ms | 0 | blocked Bot challenge served (HTTP 403, cf-mitigated=challenge) |
| PerplexityBotPerplexity | AI search index | disallowedDisallow: / | 403 challenge77 ms | 0 | blocked robots.txt Disallow: / (group: PerplexityBot) |
| Perplexity-UserPerplexity | AI assistant (live fetch) | allowedAllow: /$ | 403 challenge77 ms | 0 | blocked Bot challenge served (HTTP 403, cf-mitigated=challenge) |
| BingbotMicrosoft · Bing index. Also feeds Copilot and ChatGPT search. | Search engine | allowedAllow: /$ | 2001529 ms | 97 | partial Different content than humans receive |
| Applebot-ExtendedApple · Robots-only token for Apple Intelligence training. | AI training | allowedAllow: /$ | n/a | visible Robots-only token; allowed by robots.txt | |
| Meta-ExternalAgentMeta | AI training | allowedAllow: /$ | 403 challenge76 ms | 0 | blocked Bot challenge served (HTTP 403, cf-mitigated=challenge) |
| AmazonbotAmazon · Alexa and Amazon AI. | AI training | allowedAllow: /$ | 403 challenge76 ms | 0 | blocked Bot challenge served (HTTP 403, cf-mitigated=challenge) |
| BytespiderByteDance · Known for ignoring robots.txt. | AI training | disallowedDisallow: / | 403 challenge76 ms | 0 | blocked robots.txt Disallow: / (group: Bytespider) |
| CCBotCommon Crawl · Open dataset used to train most LLMs. | AI training | disallowedDisallow: / | 403 challenge75 ms | 0 | blocked robots.txt Disallow: / (group: CCBot) |
Snapshot
Measured 2026-09-25 09:17 UTC from a residential connection. Sites change their rules often, and sites that verify crawler IPs answer differently to different networks. Run a live comparison to see what chatgpt.com does right now, from Cloudflare's network.