EX.CO (formerly Playbuzz) is an online publishing platform for publishers, brand agencies, and individual content creators to create content in interactive formats such as polls, quizzes, lists, video snippets, slideshows, and countdowns.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.