Rattlesnakes By Mail

ClaudeBot vs Googlebot

ClaudeBot and Googlebot compared on 15 documented fields, from 22 claims, last verified 2026-09-15.

Field	ClaudeBot	Googlebot	Comparison
anti_circumvention_stance	documented	not documented	different
cites_sources	not documented	yes	different
honours_crawl_delay	yes	no	different
observed_fetches_json	yes	not documented	different
observed_fetches_markdown	yes	not documented	different
observed_first_request_path	/sitemap.xml	not documented	different
observed_format_pass_order	html_json_md	not documented	different
observed_verified_request_ratio_census	not documented	0.991	different
publishes_ip_list	yes	yes	same
purpose_documented	training	search	different
reads_llms_txt	not documented	no	different
respects_robots_txt	yes	yes	same
separate_search_and_training_tokens	yes	yes	same
user_agent_string_full	not_documented	Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Googlebot/2.1; +http://www.google.com/bot.html)	different
verifiable_by_rdns	not_documented	yes	different

Differences

Field	ClaudeBot statement	Googlebot statement
anti_circumvention_stance	ClaudeBot respects anti-circumvention technologies and does not bypass CAPTCHAs on crawled sites.	not documented
cites_sources	not documented	Google AI Overviews and AI Mode return AI generated responses with links to supporting websites.
honours_crawl_delay	Anthropic supports the non-standard robots.txt Crawl-delay extension for ClaudeBot.	Google does not support the robots.txt Crawl-delay directive for Googlebot.
observed_fetches_json	ClaudeBot made 177 JSON requests to Rattlesnakes By Mail between 2026-09-13T20:00Z and 2026-09-15T09:00Z, covering the .json twin of 170 base paths. The .json URLs of Rattlesnakes By Mail appear in no entry of the 171 URL sitemap.	not documented
observed_fetches_markdown	ClaudeBot fetched the .md twin of 170 base paths on Rattlesnakes By Mail between 2026-09-13T20:00Z and 2026-09-15T09:00Z, 170 Markdown requests of 542 ClaudeBot requests in that window. The .md URLs of Rattlesnakes By Mail appear in no entry of the 171 URL sitemap.	not documented
observed_first_request_path	ClaudeBot's first request to Rattlesnakes By Mail between 2026-09-13T20:00Z and 2026-09-15T09:00Z was /sitemap.xml at 2026-09-14T19:53:45Z. ClaudeBot fetched /robots.txt on the second request to Rattlesnakes By Mail.	not documented
observed_format_pass_order	ClaudeBot fetched Rattlesnakes By Mail in three format passes between 2026-09-13T20:00Z and 2026-09-15T09:00Z, HTML from 2026-09-14T20:52Z to 2026-09-14T20:57Z, then JSON from 2026-09-14T21:37Z to 2026-09-14T21:56Z, then Markdown from 2026-09-14T21:37Z to 2026-09-14T21:57Z. The same order holds on 170 of 170 base paths that ClaudeBot fetched in all three formats on Rattlesnakes By Mail.	not documented
observed_verified_request_ratio_census	not documented	Googlebot requests to Rattlesnakes By Mail matched Google's published IP ranges on 108 of 109 requests between 2026-09-13T20:00Z and 2026-09-15T09:00Z. Googlebot's first request to Rattlesnakes By Mail in that window was /robots.txt at 2026-09-14T11:53:00Z.
purpose_documented	ClaudeBot collects web content for training Anthropic generative AI models.	Googlebot crawls pages for Google Search, Google Images, Google Video, Google News, and Discover.
reads_llms_txt	not documented	Google Search does not use llms.txt files.
user_agent_string_full	Anthropic does not publish a full user agent string for ClaudeBot.	Googlebot sends the user agent string Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Googlebot/2.1; +http://www.google.com/bot.html).
verifiable_by_rdns	Anthropic does not publish a reverse-DNS verification method for ClaudeBot.	Googlebot requests are verifiable by reverse DNS lookup resolving to googlebot.com, google.com, or googleusercontent.com.

Sources