# Which AI actually reads your site? Two months of LLM traffic, measured

DevFeed: [Which AI actually reads your site? Two months of LLM traffic, measured](<https://devfeed.tech/articles/which-ai-actually-reads-your-site-two-months-of-llm-traffic-measured-19793.md>)

Original publisher: [Read original article](<https://evilmartians.com/chronicles/which-ai-actually-reads-your-site-two-months-of-llm-traffic-measured>)

Author: Travis Turner (richardturner@evilmartians.com)

Published: 2026-07-21T00:00:00Z

Content type: article

Language: en

Sources: [Evil Martians](<https://devfeed.tech/sources/evil-martians.md>)

Topics: [Large Language Model](<https://devfeed.tech/topics/llm.md>), [Artificial Intelligence](<https://devfeed.tech/topics/ai.md>), [Claude Code](<https://devfeed.tech/topics/claude-code.md>), [ChatGPT](<https://devfeed.tech/topics/chatgpt.md>), [Google Analytics](<https://devfeed.tech/topics/google-analytics.md>), [Netlify](<https://devfeed.tech/topics/netlify.md>), [Back end](<https://devfeed.tech/topics/backend.md>)

Tags: [agent-experience](<https://devfeed.tech/tags/agent-experience.md>), [agents](<https://devfeed.tech/tags/agents.md>), [ai](<https://devfeed.tech/tags/ai.md>), [backend](<https://devfeed.tech/tags/backend.md>), [chatgpt](<https://devfeed.tech/tags/chatgpt.md>), [claude-code](<https://devfeed.tech/tags/claude-code.md>), [dx](<https://devfeed.tech/tags/dx.md>), [google-analytics](<https://devfeed.tech/tags/google-analytics.md>), [jamstack](<https://devfeed.tech/tags/jamstack.md>), [llm](<https://devfeed.tech/tags/llm.md>), [llms](<https://devfeed.tech/tags/llms.md>), [logs](<https://devfeed.tech/tags/logs.md>), [measurement](<https://devfeed.tech/tags/measurement.md>), [netlify](<https://devfeed.tech/tags/netlify.md>)

## AI overview

Evil Martians measured two months of server-side LLM traffic to its website. The study found that ChatGPT primarily fetches rendered HTML, while Claude Code requests Markdown most of the time through content negotiation. Most llms.txt requests came from bots other than the intended AI assistants, and a hidden AI hint received no measurable hits.

## Source excerpt

We told you to measure. So of course we did it ourselves too: two months of server-side LLM traffic to evilmartians.com. Find out which agents read HTML, which read Markdown, what llms.txt actually does, and the one technique that got zero hits.