Updated daily
Crawler Catalog
1,953 known bots, crawlers, and AI agents — with UA patterns, verification methods, and recommended access policies.
Not sure what "crawler" vs "scraper" vs "agent" means here? See our terminology guide →
The policy each agent gets before a site sets its own. Click a number to list those agents.
1,284 results
Sidetrade indexer bot
other
Sidetrade
observe
Silktide
ai coding agent
Silktide
Silktide
observe
Silvestro
ai assistant
Silverstream AI
silvestro
observe
signed
SimpleAsyncPageCrawler
other
SimpleAsyncPageCrawler
observe
simplecrawler
other
simplecrawler
observe
SimplePie
ai assistant
SimplePie
SimplePie
observe
SimpleScraper
other
SimpleScraper
observe
Sindup
other
Sindup
observe
SirdataBot
other
Sirdata
SirdataBot
observe
sistrix crawler
other
sistrix
observe
SiteBot
other
SiteBot
observe
sitecheck.internetseer.com
other
sitecheck.internetseer.com
observe
siteexplorer.info
other
siteexplorer.info
observe
siteimprove
other
siteimprove
observe
siteimprove-lookup
other
siteimprove-lookup
observe
Siteimprove.com
other
Siteimprove.com
observe
SitemapBot
other
SitemapBot
observe
SitemapCrawler
other
SitemapCrawler
observe
SiteSnagger
other
SiteSnagger
observe
SitesOverPagesBot
other
SitesOverPagesBot
observe
SiteSucker
other
SiteSucker
observe
SiteUptime.com
other
SiteUptime.com
observe
Skroutz ImageBot
other
Skroutz S.A.
Skroutz
observe
SkyWatch
other
SkyWatch
observe
SlaccaleBot
other
SlaccaleBot
observe
Slack-ImgProxy
ai assistant
Slack
Slack-ImgProxy
observe
Slackbot-LinkExpanding
ai assistant
Slack
Slackbot-LinkExpanding
observe
SlackbotLinkExpanding
ai assistant
Slack
SlackbotLinkExpanding
observe
SleepBot
other
SleepBot
observe
Sleuth
other
Sleuth
observe
SlickBot
ai assistant
Slickstream
SlickBot
observe
slopsearch
ai assistant
Christopher Albert
slopsearch
observe
signed
slurp
other
slurp
observe
Smallwebindexbot
other
Smallwebindexbot
observe
SmartBotCrawler
other
SmartBotCrawler
observe
SMTBot
ai assistant
Similarweb
SMTBot
observe
Snap URL Preview Service
ai assistant
Snap
Snap
observe
Snapchat
ai assistant
Snapchat
Snapchat
observe
SocialBeeAgent
other
SocialBeeAgent
observe
SocialRankIOBot
other
SocialRankIOBot
observe
Sogou
other
Sogou
observe
Sogou inst spider
other
observe
Sogou spider2
other
observe
Sonic
other
Sonic
observe
Sora Caisse POS
other
Sora Caisse POS
observe
Sosospider
other
Sosospider
observe
Sottopop
ai assistant
UpContent
Sottopop
observe
Sottopop-user-rss
ai assistant
UpContent
Sottopop-user-rss
observe
SottopopNone
ai assistant
UpContent
SottopopNone
observe
SpankBot
other
SpankBot
observe
spanner
other
spanner
observe
spbot
other
spbot
observe
SpeedyIndexBot
other
SpeedyIndexBot
observe
Spider
ai scraper
Spider
Spider
observe
SpiderLing
other
SpiderLing
observe
Spinn3r
other
Spinn3r
observe
spotter
other
spotter
observe
SpringserveBot
other
SpringserveBot
observe
SputnikBot
other
SputnikBot
observe
Spyglasses Bot
ai assistant
SpyglassesBot
observe
signed