Overview
Known Agents — formerly Dark Visitors — identifies AI crawlers and agents arriving at your site and turns that into analytics plus a managed robots.txt, so you can answer the question most publishers are guessing at: which LLM bots are actually reading my content, and do I want them to. It is the cheapest honest entry point in this category, with a free tier covering one project and 100K events and a WordPress plugin with over a thousand active installs, so you do not need a developer to get the basic picture. Frame it correctly: this is visibility and control, not a revenue mechanism — it makes no attempt to get you paid for the crawling it reports.
Key Features
- ✓Identifies AI crawlers and agents from incoming requests
- ✓Agent Identification API for custom server-side logic
- ✓WordPress plugin with 1,000+ active installs
- ✓Auto-generated robots.txt for unwanted crawlers
- ✓Free tier with 1 project and 100K events per month
Known Agents Alternatives
Other AI Analytics & Measurement tools to consider:
Mixpanel
AI-first product analytics with natural language querying and Spark AI
AI-NativeFree (up to 1M events/mo)
Mutiny
AI-powered B2B web personalization and ABM platform
AI-NativeCustom pricing (contact sales)
Optimizely
Enterprise experimentation and digital experience platform with AI-powered optimization
AI-Powered$36,000/year
Plausible Analytics
Privacy-first analytics that tracks AI and LLM referral traffic
AI-Enhanced$9/mo Starter (Stats API needs $19/mo Business) / free self-hosted
PostHog
Open-source all-in-one product analytics with AI assistant and generous free tier
AI-PoweredFree (1M events/mo, pay-as-you-go after)