Transparency Report

Google Safe Browsing

Safe Browsing is a service that Google's security team built to identify unsafe websites across the web and notify users and website owners of potential harm. In this Transparency Report, we disclose details about the warnings we show to users. We share this information to increase awareness about unsafe websites, and we hope to encourage progress toward a safer and more secure web.

This is an archived version of the Safe Browsing Overview page. The charts were last updated on Sep 30, 2023.

How we warn users

Approximately five billion devices benefit from Google Safe Browsing technology. When our systems have identified a site as potentially harmful, Safe Browsing triggers a warning to users. These warnings are designed to prevent users from visiting harmful sites and help them stay safe online.

Warnings displayed per week

We warn users about unsafe sites in several ways. This chart shows two of the major methods through which we provide warnings. When a user of a Safe Browsing–enabled browser or app attempts to access unsafe content on the web, they’ll see a warning page explaining that the content they’re trying to access may be harmful. When a site that Safe Browsing has identified as harmful appears in Google Search results, we show a warning next to that site in the results. The charts in this section of the page present the total number of in-browser/in-app warnings shown to users and the total number of search results displaying warnings on a weekly basis.

How we notify website owners

Safe Browsing alerts website owners when their sites have been hacked and provides information to help clean up the problem. Every time we add an unsafe site to the list, we notify the website owner through the Search Console. We detail the steps to recover from an infection and give website owners examples of the specific code that has been injected into their site.

Website owner response time (in days)

Select dataset

We measure how quickly website owners clean up their sites after receiving notifications that their sites have been compromised. Even after a site has been cleaned, it can become reinfected if an underlying vulnerability remains.

As of Apr 8, 2020, the Safe Browsing Malware page has been archived.