ChatGPT starts surfacing brand links, reshaping referral traffic

ChatGPT’s answers stopped acting like a dead end and started behaving like a doorway. On May 7, Similarweb said the product began surfacing more prominent clickable brand links directly inside answers, and that small format change immediately turned AI search visibility into measurable traffic instead of just brand exposure.

The numbers moved fast. Similarweb reported that the share of answers carrying a brand link climbed from about 0.4% to 6.2% in a single day. Week over week, total ChatGPT referrals rose 157.7%, while homepage referrals jumped 354.7%. That homepage figure matters most, because Similarweb defines it as traffic landing directly on a brand’s root domain, not on some deep article or product page that might get the credit instead.

That is the real shift here. A ChatGPT answer is no longer just a summary of what the model thinks is relevant. For brands, it is increasingly a navigation surface, one that can send people straight to the front door. Similarweb said the traffic increase did not fade after the initial jump; it held above the prior baseline after May 7, which points to a structural change rather than a one-day experiment.

The tactical lesson is blunt: being mentioned is not enough if ChatGPT can also choose who gets the click. Similarweb’s guidance pushes brands toward Bing-indexability, consistent descriptions across third-party sources like Wikipedia, G2 and Crunchbase, and clean structured data. In other words, AI visibility now depends on a credible brand footprint across the web, not just on traditional Google rankings.

That broader context explains why marketers are paying such close attention. Similarweb said ChatGPT’s web visits grew 84% between September 2024 and March 2026, so the channel was already becoming hard to ignore before the May 7 change. The company has also said YouTube, Facebook and Wikipedia have been among the top destinations for traffic from AI chatbots, which shows how quickly this traffic can start influencing mainstream referral patterns.

Adelle Kehoe described the update as one that sends users to a brand’s front door, and that is exactly why this matters to publishers, SEO teams and ecommerce brands. If ChatGPT keeps widening the path from answer to click, then homepage optimization, entity signals and attribution tracking stop being side work. They become part of the core acquisition stack.