Assistants

10 of 25 on

Major ChatGPT chatgpt.com, chat.openai.com, chat.comAdds utm_source=chatgpt.com. The mobile and desktop apps send no referrer. Perplexity perplexity.ai, pplx.ai Gemini gemini.google.com, bard.google.com, notebooklm.google.com, aistudio.google.comThe apps mostly send no referrer. Copilot copilot.microsoft.com, copilot.com, copilot.cloud.microsoft, m365.cloud.microsoft Claude claude.aiReferrer is inconsistent. Apps send none. DeepSeek chat.deepseek.com, deepseek.com Grok grok.com, x.ai Meta AI meta.ai Le Chat chat.mistral.ai Duck.ai duck.ai

Filter

Session source matches regex

What this misses

Google AI Overviews and AI Mode count as normal Google search clicks. Search Console's generative AI report shows impressions only, both combined, no clicks.
Bing's AI Performance report shows citations for Copilot and Bing summaries, no clicks.
Assistant apps on phone and desktop mostly send no referrer, so those visits land in Direct. Treat any number from this filter as a floor.
GA4's built-in AI Assistant channel covers ChatGPT, Gemini, DeepSeek, Copilot and Grok. This filter adds the rest.

Hostnames from the referrer lists maintained by Matomo, Adobe Analytics, PostHog and Plausible. Checked November 2026.