Normally, if your browser does not accept cookies, then you’ll be redirected to that page. Yesterday, there was an issue for a few hours where seemingly everyone would be redirected to that page.
If you visit a site for the first time with ?i=3 in the URL, you’ll also be redirected to the cookie page.
In any case, the issue from yesterday was solved. If you’re still having trouble accessing your website, please create a new topic and describe the issue there.