ChatGPT Traffic Index.
Real-time trends in ChatGPT referral traffic. Updated daily.
See traffic from all AI search enginesCurrent state
ChatGPT traffic index is at 65% of tracked peak, with -4.2% over 30 days.
Strongest sector
Other leads at +17.1% (30d).
Watchlist
Lifestyle & Health is lagging at -14.9% (30d) and may need stronger citation coverage.
Traffic Index Since Tracking Started
Normalized to peak = 100%. Last updated: March 22, 2026
Which sectors are gaining ChatGPT traffic?
30-day performance across 6 industry verticals.
About this data
This index aggregates anonymized referral traffic from 3,337+ GA4 properties connected to Trakkr. Sessions are filtered where source contains "chatgpt" and normalized to the highest traffic day (= 100%). Industry categories from GA4. Updated daily at 00:00 UTC.
Panel note: this ChatGPT-only dataset may differ from the broader AI Search Traffic Index panel. Use both together - this page for source-specific trend depth, and the multi-source index for market-share context.
What is ChatGPT referral traffic?
ChatGPT referral traffic is the visits your website receives when a user clicks a link inside a ChatGPT response. Since OpenAI launched ChatGPT Search in late 2024 and made it free to all users in February 2025, ChatGPT has become a meaningful and growing source of referral traffic for many websites - particularly in commerce, technology, and health.
In Google Analytics 4, these sessions appear with a source containing "chatgpt.com" or "chat.openai.com." Unlike traditional search engine traffic, ChatGPT referral visits tend to be highly qualified: users have already described their intent in natural language, and ChatGPT has selected your page as a relevant source. This often translates to longer session durations and higher engagement rates compared to generic organic traffic.
The Trakkr ChatGPT Traffic Index tracks this referral traffic daily across 3,337+ GA4 properties to surface trends that individual site owners cannot see in isolation. By aggregating across industries, the index reveals whether changes in your own ChatGPT traffic are part of a broader shift or specific to your site.
How much traffic does ChatGPT send to websites?
ChatGPT referral traffic varies significantly by industry and website authority. Based on aggregated data from 1,100+ GA4 properties, ChatGPT currently drives a meaningful and growing share of referral traffic - though it remains a fraction of traditional search engine traffic for most sites. Commerce and technology sites tend to receive the highest volumes.
Is ChatGPT referral traffic growing or declining?
ChatGPT referral traffic has shown strong year-over-year growth since ChatGPT Search launched in late 2024, though it fluctuates week to week. The Trakkr ChatGPT Traffic Index tracks these trends daily across 1,100+ websites to surface the real trajectory beyond short-term noise.
How do you measure ChatGPT referral traffic?
ChatGPT referral traffic is measured through Google Analytics 4 (GA4) by filtering sessions where the traffic source contains "chatgpt." The Trakkr index aggregates this data from 1,100+ anonymized GA4 properties and normalizes it to the highest-traffic day (= 100%) to show relative trends without exposing absolute numbers.
Which industries get the most traffic from ChatGPT?
Industry performance shifts over time. The Trakkr ChatGPT Traffic Index breaks down referral traffic across six verticals - Commerce, Technology & Finance, Lifestyle & Health, Education & Public, Entertainment, and Other - so you can see which sectors are gaining or losing ChatGPT traffic in real time.
How can I track ChatGPT traffic to my own website?
Connect your Google Analytics property to Trakkr to see exactly how much traffic ChatGPT, Perplexity, Claude, Gemini, and other AI platforms send to your site. Trakkr automatically filters and categorizes AI referral traffic, benchmarks you against industry averages, and tracks changes over time.
What is the ChatGPT Traffic Index?
The ChatGPT Traffic Index is a free, daily-updated benchmark published by Trakkr that tracks the volume of referral traffic ChatGPT sends to websites. It aggregates anonymized data from 1,100+ GA4 properties, normalizes sessions to the highest recorded day, and breaks trends down by industry vertical.
Benchmark your ChatGPT traffic against the market
Connect Google Analytics to compare your ChatGPT trend with category baselines and source-mix shifts.