Which AI assistants send you humans?
AI isn’t only crawling you: it’s referring real visitors. Lume measures the human traffic AI assistants send, named by assistant, even when the referrer is missing but the link was tagged. No custom channel setup, and no bots padding the count.
The visitors AI sends you
Lume tracks 15 AI assistants across 18 referrer domains (ChatGPT, Claude, Gemini, Perplexity and more) so you can see the humans arriving from AI answers, a channel that tends to convert around 4.4× as often as organic search and stay longer on-site. Find which AI surfaces send real buyers and invest where they already cite you.
Detection that doesn’t depend on the referrer alone
AI apps often send visitors with no referrer at all (roughly a third arrive with nothing), and default channel reports file them under “Direct” or “Unassigned.” Lume checks both the referrer host and the utm_source tag that assistants like ChatGPT add to their links, so a tagged visit is credited to the assistant that sent it even when the referrer is missing. A visit that carries neither can’t be attributed by any tool, Lume included, and we won’t pretend otherwise.
Referrals vs. crawls: both matter
A crawler indexing your content and a human arriving from an AI answer are two different things. Lume keeps them separate: one is the machine reading you, the other is the visit it sent back.
Related reading
How to see ChatGPT and Perplexity referral traffic
AI referral traffic is the humans arriving from ChatGPT, Perplexity, and Gemini. Here are the exact referrer hostnames, GA4 setup, and the gotchas that hide it.
Why Google Analytics doesn't show bot or AI crawler traffic (and how to see it)
GA4 only counts visitors that run its JavaScript tag, then silently drops the known bots that do. Here is what that hides, which bots still slip through, and how to measure your real bot share.
How to get cited in Google AI Overviews and ChatGPT
A practical guide to earning citations in Google AI Overviews and ChatGPT, then confirming they worked by measuring the AI-referral traffic they send back.
FAQ
Why can’t I see AI traffic in my normal analytics?
Many AI apps strip the referrer or pass none at all, so those visits land in “Direct” or “Unassigned.” Lume reads the referrer host and the utm_source tag assistants like ChatGPT add, names the assistant out of the box, and reports it against a human count with the bots removed. Visits that arrive with neither signal stay unattributed everywhere, including in Lume.
Is an AI referral the same as an AI crawler?
No. A crawler is a bot reading your site; an AI referral is a human who clicked through from an AI answer. Lume measures both, separately.
Which AI assistants are tracked?
The 15 in Lume’s referrer catalog, spanning 18 domains, including ChatGPT, Claude, Gemini, and Perplexity. The list grows as new assistants appear.
Will this get me cited more in AI answers?
No. Lume measures the visitors AI already sends you; it doesn’t rank you, get you cited, or change what the models say. It’s directly observed server-side traffic, not a share-of-voice or GEO tool.
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