SynthTrail

Monitoring software for LLM crawlers and AI assistants

AI assistants now browse the web for their users, and LLM-powered tools fetch pages to answer questions. SynthTrail gives you a running record of the ones that load your pages in a browser.

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$9.99 a month. No contract. Cancel any time.

Who is behind the visit

Agents that identify themselves are recognised by name, including assistants from OpenAI, Anthropic, Perplexity, Google, Meta, Amazon, Apple and others. Sessions are grouped by agent so you can see which assistants are interested in your content and how often they return.

An honest note on crawlers

SynthTrail works from a snippet that runs in the page, so it sees agents that actually load and run your pages. A plain crawler that downloads HTML without running scripts never executes the snippet, so it cannot be seen this way. Server logs remain the right place for that traffic. SynthTrail covers the browser-driven agents that logs alone cannot explain.

Ongoing, not a one-off report

Sessions accumulate in your dashboard and the overview chart shows the trend over seven days, so you notice when a new assistant starts showing up.

What you get

Named assistants and vendors grouped in one view
A seven-day trend of agent sessions
A weekly email summary you can send yourself
Clear limits on what a snippet can and cannot see

Follow the trail on your own site

Paste one snippet and see the synthetic visitors that use your site. Card details are entered on Stripe, never on this site.

Start monitoring AI assistants