As discussed in Moving the site behind a CDN, we will soonish move forward with moving the site behind Fastly. In conjunction, the domains perlmonks.com and perlmonks.net will also redirect to perlmonks.org, to improve cache hit rate.

At least during the move the css.* domain will be unavailable, but as far as I understand the setup, we can later make css.perlmonks.org work again, especially for logged-in users.

For the time being, you can update your bookmarks to perlmonks.org and save the login cookies for that domain.

As for the timeline, the work is done by volunteers. I expect the DNS update and HTTP redirects to happen sometime next week.