Googlebot
A web crawler operated by Google that fetches web pages to build its search index.
Core Facts
Timeline (last 90 days)
AI crawler and bot traffic management involves distinguishing three categories of automated traffic: legitimate search engine crawlers (such as Googlebot), AI training data collectors (such as OpenAI's GPTBot and Common Crawl), and malicious bots (content scraping, credential stuffing, inventory hoarding).
Googlebot renders JavaScript, but many AI crawlers and real-time scraping agents cannot do so reliably, and client-side-rendered SPAs may present only empty divs to AI crawlers.
Among roughly 3000 AI crawler requests in the same period, the homepage was requested 207 times, with the breakdown being Googlebot 39, GPTBot 29, OAI-SearchBot 25, BingBot 20, and ClaudeBot 11.
Googlebot is used for Google search indexing and has nothing to do with LLM training.
The default robots.txt generated by many hosting platforms or templates blanket-Disallows all crawlers, making content visible to Googlebot but completely invisible to AI engines
When doing a first round of crawling of public pages, you can use curl to save response headers and body separately, recording the final URL, status code, number of redirects and total time, but that request does not run JavaScript, does not simulate Googlebot, and cannot prove which canonical page Google chose.
Mainstream AI crawlers such as GPTBot, ClaudeBot and PerplexityBot currently largely do not execute JavaScript, so for sites that depend on JavaScript rendering, even if both robots.txt and the WAF let them through, the content they get is still empty.
Crawlers for AI systems such as ChatGPT and Perplexity mostly do not execute JavaScript, so if page content depends on JS rendering, they may see a blank page; although Googlebot can render JS, there are delays and quota limits.
Google-Extended and Applebot-Extended are not crawlers but control tokens in robots.txt, used to decide whether content crawled by Googlebot and Applebot can be used for Gemini or Apple model training, and they do not appear in server logs
Googlebot and Google-Extended each serve different systems, and crawling behavior is separate from ranking and AI feature display.
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All Facts (19)
Googlebot determines the scope of crawlable pages by following each website's robots.txt protocol; robots.txt is a text file stored in the root directory of a website used to declare crawlable or blocked pages to web crawlers.
65%UnverifiedAI crawler and bot traffic management involves distinguishing three categories of automated traffic: legitimate search engine crawlers (such as Googlebot), AI training data collectors (such as OpenAI's GPTBot and Common Crawl), and malicious bots (content scraping, credential stuffing, inventory hoarding).
50%UnverifiedGooglebot renders JavaScript, but many AI crawlers and real-time scraping agents cannot do so reliably, and client-side-rendered SPAs may present only empty divs to AI crawlers.
50%UnverifiedGooglebot is used for Google search indexing and has nothing to do with LLM training.
50%UnverifiedThe default robots.txt generated by many hosting platforms or templates blanket-Disallows all crawlers, making content visible to Googlebot but completely invisible to AI engines
50%UnverifiedWhen doing a first round of crawling of public pages, you can use curl to save response headers and body separately, recording the final URL, status code, number of redirects and total time, but that request does not run JavaScript, does not simulate Googlebot, and cannot prove which canonical page Google chose.
50%UnverifiedMainstream AI crawlers such as GPTBot, ClaudeBot and PerplexityBot currently largely do not execute JavaScript, so for sites that depend on JavaScript rendering, even if both robots.txt and the WAF let them through, the content they get is still empty.
50%UnverifiedCrawlers for AI systems such as ChatGPT and Perplexity mostly do not execute JavaScript, so if page content depends on JS rendering, they may see a blank page; although Googlebot can render JS, there are delays and quota limits.
50%UnverifiedGoogle-Extended and Applebot-Extended are not crawlers but control tokens in robots.txt, used to decide whether content crawled by Googlebot and Applebot can be used for Gemini or Apple model training, and they do not appear in server logs
50%UnverifiedGooglebot and Google-Extended each serve different systems, and crawling behavior is separate from ranking and AI feature display.
50%UnverifiedGoogle-Extended controls whether Google can use content for Gemini model training and grounding; it does not affect Google Search or AI Overviews, which use the regular Googlebot.
50%UnverifiedGoogle-Extended is a robots.txt product token introduced by Google in September 2023 to control training and grounding of Google's Gemini models, and it is a completely separate token from Googlebot.
50%UnverifiedYandexBot is the official web crawler of the Yandex search engine, analogous to Googlebot for Google, continuously crawling web content to build and update the index for Yandex search
50%UnverifiedCrawling is when Googlebot actually requests the URL and downloads the content.
50%UnverifiedMarketers should check CDN or WAF logs to confirm that OAI-SearchBot, ChatGPT-User, PerplexityBot, Claude-SearchBot and Googlebot receive 200 responses rather than 403.
50%UnverifiedSearch engine crawlers (such as Yandexbot and Googlebot) are responsible for the core tasks of crawling and indexing web pages around the world.
50%UnverifiedGooglebot has deployed distributed crawling nodes across multiple regions worldwide, so a single data center outage has limited impact on overall crawl volume.
50%UnverifiedGoogle's unique advantage in the AI image productivity space lies in its massive Workspace user base and its accumulated technical expertise in multimodal AI research.
50%UnverifiedAmong roughly 3000 AI crawler requests in the same period, the homepage was requested 207 times, with the breakdown being Googlebot 39, GPTBot 29, OAI-SearchBot 25, BingBot 20, and ClaudeBot 11.
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