Because I’ve gotten a lot of emails/comments about users no longer being able to download from Pururin, I thought I’d make a post about it.
First, note that the problem has been fixed in the latest release (Version 18.104.22.168, Release 7). You can either download the new version manually, or run the updater from HDoujin Downloader.
The problem was caused by Pururin enabling Cloudflare’s “I’m Under Attack” mode, probably in response to the large amount of spam that their forum has been dealing with.
There’s a new setting under “Site-Specific Settings” called “Bypass Cloudflare protection” that fixes the problems with Pururin, and it’s enabled by default in the latest release (so you don’t need to do anything). When/if Pururin disables “I’m Under Attack” mode, it would be a good idea to turn it off (it makes downloading from the site a little bit slower because it checks for Cloudflare stuff).
Tl;dr: You can download from Pururin again.