I'm sorry about the down time today. It appears that a high load of requests to the Study pages forced our web host to take down the site in order to protect other websites on the same server (which incidentally includes our very own Reviewing the Hanzi , which itself was not affected).

In order to address this quickly I have implemented "throttling" on the Study pages. Practically speaking if you try to browse between Study pages too fast (within 1-2 seconds), you may see an error message. Wait for a couple seconds before reloading.

I understand it can be a little annoying but due to the nature of the Study pages I think it should be bearable. If you frequently use the Previous / Next buttons to browse between the kanji, try to wait a second between clicks, or directly search for a kanji rather than click five times forward/backwards.

I will do what I can to try and implement a smarter way of throttling the pages and detecting abusive users and scripts, and am considering banning accounts in the future who are scraping the Study pages stories and reducing the response times and quality of the website for everyone else.