WOT (Web of Trust) is an add-on for browsers Firefox, Internet Explorer, Google Chrome, Opera and Safari (for Windows), which adds security to web surfing because it warns against the presence of threats and possible phishing attempts Or other types of fraud.
There are sites that are intended to deceive users, to steal sensitive data, or to offer downloads that contain viruses, spyware, or adware.
WOT is responsible for displaying the reliability of the sites that appear in the search listings in Google , Yahoo, Bing and other search engines by means of colors (red, green and yellow). It also warns of dangerous links in Gmail, Windows Live Hotmail and Yahoo! Mail.
More than 22 million websites have been valued, which helps to know if they are fit to be visited. It also warns of the presence of adult content in the pages to be visited, since it is common that common searches can lead to such types of sites, with an option to block those pages.
There are some AVGs that include a tool similar to AVG. Some can slow down the browser, while WOT stands out for being a light and responsive application.
WOT you can download free to install in your favorite browser. The latest version of the program (for Firefox) is the number 20120926, updated in September 2012. It is permanently updated to support the latest versions of browsers.