Guide
AI traffic attribution: how to see which visits come from AI assistants
By The Venoh AI team · Last updated November 8, 2026
AI assistants send real visitors, but most analytics setups lump them into "referral" or "direct". AI traffic attribution means separating those visits so you can see how many people AI sends you, from which assistant, to which pages, and whether they convert. Here is how to set it up in GA4 in about ten minutes.
utm_source=chatgpt.com. Expect to undercount: app traffic and copied links often arrive as direct.What each assistant sends
| Assistant | Shows up as |
|---|---|
| ChatGPT | Source chatgpt.com; many links carry utm_source=chatgpt.com |
| Perplexity | Source perplexity.ai |
| Gemini | Source gemini.google.com |
| Claude | Source claude.ai |
| Microsoft Copilot | Source copilot.microsoft.com (some visits as bing.com) |
| Google AI Overviews and AI Mode | Counted inside Google organic; not separable in GA4 |
Set it up in GA4
- In GA4 go to Admin → Data display → Channel groups and copy the default channel group.
- Add a new channel called AI assistants with the condition *Session source matches regex* and paste the regex below.
- Drag AI assistants above Referral, otherwise the visits are claimed by Referral first. Save.
- In Reports → Acquisition → Traffic acquisition, switch the dimension to your new channel group. Add a comparison by landing page and by key event to see what AI visitors read and whether they convert.
(chatgpt|openai|perplexity|gemini\.google|bard\.google|claude\.ai|anthropic|copilot\.microsoft|you\.com|meta\.ai|deepseek|mistral|grok)What you will not see
- Mobile apps often strip the referrer, so visits from the ChatGPT or Perplexity apps can land in direct.
- People copy a name and search for it. When AI recommends you and the buyer googles your brand, the visit shows as Google organic. Watch branded search in Search Console alongside AI referrals.
- Google's own AI answers are mixed into organic search and cannot be split out in GA4.
- Being named without a link sends no measurable visit at all. That is why AI visibility is measured from the answers themselves, not only from traffic.
What to report each month
- Sessions from AI assistants, by assistant, and the trend.
- Top landing pages for AI visitors: these are the pages AI cites.
- Key events (sign-ups, demo requests) from AI visitors, and the rate compared with other channels.
- Branded search impressions in Search Console, the footprint of being named without a link.
- Your share of AI answers for your buyers' questions, measured directly (how).
Frequently asked questions
What is AI traffic attribution?
Separating the website visits that come from AI assistants such as ChatGPT, Perplexity, Gemini, Claude and Copilot from other referral and direct traffic, so you can see how many visitors AI sends, to which pages, and whether they convert.
How do I see ChatGPT traffic in Google Analytics 4?
Look for session source chatgpt.com (many ChatGPT links also carry utm_source=chatgpt.com). For a permanent view, create a custom channel group with an AI assistants channel above Referral that matches AI sources by regex.
Why is my AI traffic so low when ChatGPT mentions us?
Many mentions carry no link, app visits often lose the referrer, and buyers frequently search your name on Google after AI recommends you, which shows as organic search. Measure mentions in the answers themselves as well as traffic.
Can I track Google AI Overviews traffic separately?
Not in GA4. Visits from AI Overviews and AI Mode are counted as Google organic search.
Want this checked on your own pages?
The Venoh AI diagnostic reviews your real pages and labels every finding by how it was determined. Send us your website address and a line about what you sell.