This is a software publishers description.

TrendProtect is a free browser plug-in that helps you avoid Web pages with unwanted content and hidden threats. TrendProtect rates the current page and pages listed in Google, MSN, and Yahoo search results. You can use the rating to decide if you want to visit or avoid a given Web page. To rate Web pages, TrendProtect refers to an extensive database that covers the following information for billions of Web pages:

TrendProtect allows you to avoid sources of infection. If you inadvertently open a Web site rated unsafe by TrendProtect, scan your computer immediately. To get enhanced computer protection that includes the blocking of unsafe Web pages, you can install Trend Micro Internet Security.

The latest version provides two new rating types, one will display if the page is suspicious and another if TrendProtect is unable to connect to its rating servers. It also adds support for Windows Vista.