[1] The service also provides crowdsourced reviews, about to what extent websites are trustworthy, and respect user privacy, vendor reliability and child safety.

WOT Services was founded in 2006 by Sami Tolvanen and Timo Ala-Kleemola, who wrote the MyWOT software as post-graduates at the Tampere University of Technology in Finland.

[12] In November 2016, a German state media investigation found that WOT Services had secretly collected personal user details and sold or licensed this information to unidentified third-party businesses and entities for data monetization purposes.

On November 1, 2016, German public broadcasting station NDR reported the results of an investigation by in-house journalists, showing that WOT collected, recorded, analyzed and sold user-related data to third parties.

[16] The NDR investigative journalism report was based on freely available sample data, and revealed that sensitive private information of more than 50 users could be retrieved.

[14] The information included websites visited, account names and email addresses, potentially revealing user illnesses, sexual preferences and drug consumption.

[22] WOT Services offers an add-on for web browsers including Firefox, Google Chrome, Opera, Internet Explorer and Baidu.