Stags.bluekai.com is domain used by service, that belongs to Oracle and provides marketing campaigns for commercial websites. Usually, users see pop-ups or dropdown windows from Safari, Google Chrome, Mozilla Firefox regarding the safety of this website. For example, Safari can’t verify the identity of the website “stags.bluekai.com”. The certificate for this website is invalid. According to our research this mostly happens on while visiting Ebay, Amazon, but can show up on literally any website.