Mountain View, California, April 15, 2026, 04:08 PDT
Google will begin penalizing websites that tamper with the browser back button on June 15, making the practice an explicit spam violation that can drag pages lower in search results. The company said offenders could face manual spam actions, meaning penalties applied by human reviewers, or automated demotions by its search systems.
The change matters now because Google has given site owners about two months to scrub code that traps users on a page or sends them elsewhere when they try to leave. Google also warned that the problem can come from advertising platforms or bundled libraries, putting publishers, merchants and smaller sites that rely on third-party scripts on notice ahead of the deadline.
Google defines back button hijacking as interfering with browser navigation so users cannot jump straight back to the page they came from. In practice, that can mean landing on pages they never opened, getting unsolicited ads or recommendations, or being unable to back out normally.
Chris Nelson of the Google Search Quality team said the company was acting because “user experience comes first” and because it had “seen a rise” in the behavior. Google said the tactic leaves people feeling manipulated and less willing to visit unfamiliar sites. Google for Developers
The new language places the tactic under Google’s malicious-practices policy, its label for deceptive behavior that creates a gap between what users expect and what actually happens. Google’s spam-policy page now lists back button hijacking alongside malware and unwanted software as a common example in that category, a change Search Engine Journal said was made with the April 13 update.
The move drew support from some search-marketing specialists. SEO consultant Glenn Gabe wrote on X that sites using the trick were likely headed for a manual action and called the change “great news for users,” comments later highlighted by Search Engine Roundtable. Search Engine Roundtable
Google told site owners to remove or disable any script that inserts or replaces deceptive pages in browser history, the record a browser uses to decide where the back button goes next. If a site is hit with a manual action and fixes the issue, owners can seek reconsideration through Search Console, Google’s dashboard for web publishers.
But the clean-up may not be straightforward. Google said some cases originate in third-party libraries or advertising platforms, which suggests sites could still be exposed even when the offending code was not written in-house.
The company has been spelling out more search-spam rules in recent years. In March 2024 it introduced policies against expired-domain abuse, scaled content abuse and site reputation abuse — publishing third-party pages mainly to exploit a host site’s ranking strength — and gave publishers until May 5 that year to prepare for the site-reputation rule.
The two-month notice means site owners now have until mid-June to test whether the back button returns visitors directly to the previous page and to strip out any ad or library code that does not. After that, Google has said rankings can take the hit.
