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What kinds of bots are out there?

Every one of the 817 crawlers we track falls into one of these categories. Learn what each type does, how many bots belong to it, and whether you should let them through.

CategoryBotsFlagged botsDescription
MO
Monitoring & Analytics
169
0
Uptime, performance, and analytics bots that check that sites are up and measure how they perform.
SE
SEO
73
0
Backlink, rank-tracking, and site-audit crawlers run by marketing-tools vendors.
SE
Search Engine Crawler
67
0
Discovery-and-indexing crawlers that feed web, image, news, and video search results.
AI
AI Assistant
60
0
Agents that browse pages and take actions on behalf of a user in real time, rather than crawling in bulk.
WE
Webhooks
57
0
Event-driven callbacks and notification fetchers from apps and platforms.
SE
Security
53
0
Scanners that probe the web for vulnerabilities, exposed services, and threats.
UN
Uncategorized
50
0
Bots that have not yet been categorised.
AD
Advertising & Marketing
45
0
Crawlers used for ad verification, brand safety, and contextual targeting.
PA
Page Preview
44
0
Link-preview fetchers that render a card when your URL is shared in chat or social apps.
FE
Feed Fetcher
41
0
Bots that poll RSS/Atom feeds and syndicated content on a schedule.
AG
Aggregator
38
0
Bots that collect and republish content or metadata from across many sites.
AI
AI Crawler
38
0
Bots that gather public web pages to build training data for large language models.
VE
Verified Bot
23
0
Bots confirmed against an authoritative source such as Cloudflare’s verified-bot list.
AI
AI Search
17
0
Crawlers powering AI answer engines that index pages and cite them as sources in generated responses.
OT
Other
12
0
Bots that do not fit the main categories.
AC
Accessibility
10
0
Bots that audit pages for accessibility and compliance issues.
AC
Academic Research
9
0
Crawlers run by universities and research groups to study the web.
AR
Archiver
7
0
Bots that capture and preserve snapshots of web pages over time.
SO
Social Media Marketing
4
0
Bots that support social-media scheduling, monitoring, and marketing tools.
19 categories · 817 bots tracked