Agent Ready Crawlers

The field guide to every AI crawler and agent at the door, and the vendors who decide who gets in.

Bot management vendor

Known Agents

In short

Known Agents began in 2023 as Dark Visitors, a side project listing eight AI bots, and now serves a public agent directory that anyone can submit to. Customers feed it traffic from server-side hooks in CDNs and clouds; a free tier of one project suits small sites, and Growth costs USD 299 a month.

Type
Bot management
Homepage
knownagents.com
In one line
Agent analytics and access-control service, formerly Dark Visitors, that identifies AI agents and crawlers from server-side data, keeps an automatic robots.txt current, and blocks bots that ignore it or spoof trusted identities.
Last read
2026-11-05

What Known Agents does for this layer

From the vendor's own pages

Known Agents says it began in 2023 as Dark Visitors, a side project documenting the eight known AI bots then on the web, and was founded in New York City. (knownagents.com) Known Agents' Automatic Robots.txt keeps crawler rules current as new agents appear, and its Bad Bot Blocking enforces them against bots that ignore robots.txt or spoof trusted identities. (knownagents.com) Known Agents collects traffic server-side through WordPress, Cloudflare, Fastly, Akamai, AWS, Google Cloud, Vercel, Node.js and REST API integrations. (knownagents.com) Known Agents' Agent Identification returns fields such as agent_token, agent_type_name and operator_name with a verification result for each request. (knownagents.com)

Known Agents prices Free at USD 0 for one project and 100,000 events, Startup at USD 29 a month for 1 million events, and Growth at USD 299 a month for 10 million events. (knownagents.com) Known Agents runs a public agent directory with a Submit an Agent form, listing entries such as Google-Agent, ElevenlabsBot and QualifiedBot. (knownagents.com)

Claims the vendor makes about itself

Known Agents says more than 5,000 websites use the platform. (knownagents.com) Known Agents' about page states "We are not an anti-bot company." (knownagents.com)

What our crawl saw

darkvisitors.com redirected to knownagents.com when fetched with the crawl user agent on 2026-11-05. (darkvisitors.com)

Products and plans

ProductWhat it doesPrice modelFromAs of
Agent Analytics Server-side analytics of AI agents, crawlers and scrapers, including robots.txt violations. monthly by events Startup USD 29, Growth USD 299 a month; Enterprise custom. USD 0 2026-11-05
Automatic Robots.txt Robots.txt rules that update as new bots are found. No price recorded
Bad Bot Blocking Request-time blocking of bots that ignore robots.txt or spoof identities. No price recorded
Agent Identification API that names and verifies agents from incoming requests. No price recorded

Standards

StandardStatusEvidence
RFC 9309 (robots.txt) Supports Automatic Robots.txt publishes and updates robots.txt rules for compliant crawlers. (knownagents.com)
Web Bot Auth No statement Known Agents pages read 2026-11-05 do not name the verification method.

Our checks

CheckResultMethodDate
Homepage fetch HTTP 200 GET with the crawl user agent after a robots.txt check 2026-11-05

What Known Agents does not do

  • Known Agents' pages read do not say how it verifies agents; Web Bot Auth, IP lists and reverse DNS are not named (read 2026-11-05).
  • Known Agents does not charge AI crawlers for access on a site owner's behalf.

Sources

Last reviewed 2026-11-05