The website you visited contains dangerous and unhealthy websites that have been effectively reported by a large number of netizens. If you open a website and encounter such a website in other pop-ups, it may be that your browser has a plug-in problem, or that your computer has installed some software that binds plug-ins. I suggest you uninstall the relevant software and restart it.
It may also be your network problem. The related plug-ins of the router can modify the websites you browse and add relevant codes for you to click. I suggest you check the router and try again.
It may also be that the website's own code has been transferred to a dangerous website. You can download some plug-ins to block browser advertisements for protection. You can download anti-advertising plug-ins from Baidu for protection.