Rattlesnakes By Mail

observed fetches robots txt across crawlers

observed fetches robots txt across 1 crawlers from 1 vendors, from 1 claims, last verified 2026-09-15.

How the crawlers answer this one question, counted by answer. Every answer links to the vendor quote behind it.

Observed fetches robots txtObserved fetches robots txt. not documented is the largest with 14 crawlers, out of 15 crawlers in total.not documented: 14 crawlersnot documented14no: 1 crawlerno1
Observed fetches robots txt. not documented is the largest with 14 crawlers, out of 15 crawlers in total. Source: each vendor's own crawler documentation, quoted and dated on every claim page.
CrawlerVendorValueMethodVerifiedClaim
GoogleOtherGooglenoobserved_here2026-09-15claim 147

Not documented

CrawlerVendor
Claude-SearchBotAnthropic
Claude-UserAnthropic
ClaudeBotAnthropic
ApplebotApple
Applebot-ExtendedApple
Google-ExtendedGoogle
GooglebotGoogle
BingbotMicrosoft
ChatGPT-UserOpenAI
GPTBotOpenAI
OAI-AdsBotOpenAI
OAI-SearchBotOpenAI
Perplexity-UserPerplexity
PerplexityBotPerplexity

Sources

Source
https://rattlesnakesbymail.com/observed/googleother