Clickstars.xyz is an unsafe website that uses a common social engineering trick to conduct potentially harmful advertising campaigns. Clickstars .xyz's strategy is the same as that of many other similar websites. When people visit Clickstars.xyz, they only see an empty page and a text message saying that a CAPTCHA verification test should be made for the website to load its content. Thus, the website asks the visitors to confirm they are human. However, at the same time, the user needs to click on an 'Allow' button to accept notifications from Clickstars.xyz. This is a fraudulent technique of acquiring the users' permission to send them advertisements. Unfortunately, many inexperienced Internet users still fall into that.
Victims of Clickstars.xyz see its annoying push-notifications regularly. However, it is still possible to stop them by simply deleting the website's browser notifications permission from the browser's settings. If the pop-ups continue, though, the device should be scanned for Potentially Unwanted Programs (PUPs), as these also may generate intrusive advertising content. Additional symptoms of a PUP also could be an unsolicited change of the browser's homepage and default search engine, as well as persistent redirects to undesired pages on the Internet. You can remove most PUPs manually, yet experts recommend using an automatic malware removal tool for the best results.