# Google adds UTM parameters to Gemini links for referral tracking

Digest AI · Marketing & Small Business · published 2026-10-01T12:15:03Z

Canonical: https://digestai.news/story/google-adds-utm-parameters-to-gemini-links-for-referral-tracking

## Summary

This update allows site owners and SEO professionals to more accurately attribute traffic coming from Gemini in analytics platforms like GA4. Previously, a significant portion of traffic from the Gemini mobile app and Android assistant was landing as "direct" traffic because referrer data was stripped or failed to pass through, making it difficult to distinguish AI-driven visits from other sources.

The addition of UTM parameters ensures that these visits are correctly tagged, even when they pass through in-app webviews. This improves visibility into how much traffic is generated by AI assistants versus traditional search. While ChatGPT also uses UTM parameters, it only applies them to links grounded in web sources, not parametric knowledge. Google has not yet documented the specific conditions under which Gemini triggers these UTM tags, leaving some uncertainty about the full scope of the feature.

For marketers and SEOs, this change provides clearer data to justify resource allocation to AI channels. By enabling better segmentation and comparison of AI-referred visitors against traditional search referrals, businesses can make more informed decisions about their digital strategies. The move addresses growing frustration over the decline in traditional search traffic and the lack of transparency in AI-driven referral data.

## Key points

- Google added UTM parameters to Gemini outgoing links to improve traffic attribution.
- Previously, much Gemini mobile traffic appeared as "direct" in GA4 due to missing referrers.
- Google has not documented when exactly these UTM parameters are triggered within Gemini.

## Why it matters

This update gives marketers and SEOs accurate data to measure AI-driven traffic, helping them justify investment in AI channels and compare performance against traditional search.

## Sources

1. [Google Gemini Adds UTM Parameters For Referral Attribution via @sejournal, @martinibuster](https://searchenginejournal.com/google-gemini-adds-utm-parameters-for-referral-attribution/591754) (Search Engine Journal, 2026-10-01)

## Cite

Digest AI, "Google adds UTM parameters to Gemini links for referral tracking", 1 October 2026, https://digestai.news/story/google-adds-utm-parameters-to-gemini-links-for-referral-tracking

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