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OpenAI Removed UTM Tracking From ChatGPT Links

The platform has ceased appending tracking parameters to generated URLs, causing a shift in how website analytics identify traffic.

Updated on Oct. 14, 2026 in Artificial Intelligence

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OpenAI has stopped appending UTM tracking parameters to links generated by ChatGPT, a change complicating how website administrators measure referral traffic. AI Illustration. Upload story photo >

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OpenAI has removed UTM tracking parameters from links generated within ChatGPT, changing how web analytics tools classify user traffic. This update follows the recent release of GPT-6 and has resulted in a notable redistribution of visitor data for many websites.

Why it matters

The change complicates the ability of website owners to accurately measure referral traffic coming from AI interactions. Without these identifiers, incoming visits are increasingly categorized as direct traffic, obscuring the role of AI platforms in driving digital engagement.

ChatGPT now uses the window.open method with noopener and noreferrer attributes, which prevents the transmission of referrer data to destination sites. Consequently, traffic previously linked to ChatGPT has dropped by 31,000 daily visits.

The players

OpenAI

This is an artificial intelligence research organization that develops the ChatGPT platform and the GPT series of large language models.

GPT-6

This is a large language model released by OpenAI in October 2026 as the latest iteration of its flagship generative AI technology.

The details

The platform shifted its technical approach to link generation in October 2026, dropping the previously used ?utm_source=chatgpt.com identifier. Analysis of 500 pages showed that as tracking dropped, mobile users encountering site consent banners increased from 36% to 44%.

Timeline

  1. OpenAI introduced UTM tracking to ChatGPT links in June 2026.

  2. GPT-6 was released on October 7, 2026.

  3. The data analysis period occurred between October 9 and October 13, 2026.

  4. This report was published on October 14, 2026.

The Tech Race

This move aligns with broader industry trends toward increased user privacy by utilizing the window.open method with noopener and noreferrer attributes. It positions OpenAI in line with modern browser standards that prioritize blocking the transmission of referral headers.

Web managers and digital marketers will observe a shift in their analytics dashboards as referral traffic from ChatGPT is increasingly replaced by direct traffic. Users may notice increased prompts for consent banners as link behavior changes how sites detect traffic sources.

The takeaway

Website owners should adjust their analytics strategies to account for the rise in direct traffic now that referral data is being stripped from AI links. Understanding this shift is essential for accurately tracking the impact of AI-driven traffic on overall site performance.

Further reading

For more information on the ongoing evolution of these tools, visit the Artificial Intelligence section.

Source note: This article includes information reported by Search Engine Roundtable.

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Do you prefer that platforms provide clear tracking data for the websites you visit?