Google is expanding its policies to tackle websites that trap users with "back button hijacking", a practice where sites interfere with browsers, preventing users from leaving or displaying ads when they try.

This new approach comes after noticing an increase in such behavior and aims to penalize sites by reducing their search rankings, potentially removing them entirely from Google Search results.

"Back button hijacking interferes with the browser's functionality, breaks the expected user journey, and results in user frustration," explained Google in its blog post. "People report feeling manipulated and eventually less willing to visit unfamiliar sites."

Google advises site owners to ensure they do not interfere with a user’s ability to navigate their browser history; those penalized but who then fix the issue can request reconsideration.