Google Targets “Back Button Hijacking” With New Search Spam Policy

Google Search Central has announced a new policy targeting websites that manipulate browser navigation through a practice commonly known as “back button hijacking.”

The change will officially become part of Google’s spam policy beginning June 15, giving website owners and advertising networks a limited window to remove scripts that interfere with normal browser behavior.

Google Says Manipulative Navigation Harms User Experience

Back button hijacking occurs when websites use JavaScript or advertising systems to alter a user’s browser history, preventing the browser’s back button from functioning as expected.

Instead of returning users to the previous page they intentionally visited, manipulated navigation systems may redirect them toward advertisements, promotional pages or unrelated content.

According to Google, the issue has become increasingly common, particularly within mobile browsing environments where users rely heavily on browser navigation controls.

The company described the behavior as deceptive and disruptive, arguing that it damages trust in the broader web experience.

Policy Will Become an Official Spam Violation

Google confirmed that websites engaging in back button hijacking will now violate official Google Search spam policies.

The company stated that any system intentionally inserting misleading or manipulative pages into browser history conflicts with its existing Search Essentials guidelines.

As part of the enforcement effort, websites may face reduced visibility in Google Search rankings if they continue using these techniques after the policy takes effect.

The update places additional responsibility not only on site owners but also on third-party advertising networks, analytics scripts and external libraries integrated into websites.

Websites Given Deadline to Remove Manipulative Scripts

Google says developers now have roughly two months to review and remove any scripts capable of interfering with browser navigation behavior.

The company specifically warned site operators to audit advertising platforms and external services that could unintentionally trigger policy violations through aggressive redirection techniques.

The move reflects Google’s broader effort to reduce manipulative web behavior and improve user trust across search results, particularly as browser-based advertising systems become increasingly aggressive on mobile platforms.