Is tumblr shut down?

No, Tumblr is up and running.

"Cupid;c-16904296" wrote:
No, Tumblr is up and running.

Well, I'm trying to recover some cc I lost, but can't access tumblr. It's not working for others, too.

Hello
If you use One Drive, try checking to see if a mods folder has been generated there with your missing mods/cc in it.

A simmer has posted that their McAfee security protection was stopping them being able to access tumblr sites. If you use McAfee, or another internet security program, try checking to see if that may be the cause of your issues also.

"rosemow;c-16904460" wrote:
A simmer has posted that their McAfee security protection was stopping them being able to access tumblr sites. If you use McAfee, or another internet security program, try checking to see if that may be the cause of your issues also.

Yes, I had this too and found it was a setting in McAfee that was preventing access to Tumblr.

Though, with Tumblr's NSFW purge in December, their censor bot system for detecting NSFW content has spiked in notoriety for falsely flagging a LOT of content that doesn't violate their new NSFW guidelines, so there's a moderately decent chance that some modders content could have gotten swept away by the censor bots.