ERR_BLOCKED_BY_CLIENT means your browser or an extension is stopping a page or...

https://research-wiki.win/index.php/Should_I_Whitelist_yfdnzfa.com_If_My_Extension_Blocked_It%3F

ERR_BLOCKED_BY_CLIENT means your browser or an extension is stopping a page or some content from loading. To fix it fast, try opening the site in a private window. If it works there, check your browser extensions