You can use http://archive.org/web/ to retrieve an old web page that doesn't exists anymore.
For example: http://web.archive.org/web/*/http://www.random.org/bytes/ (sorry but there is a silly problem with the *
in the url even if I use the percent encoding code, so copy and paste it, don't click on it)
Then pick a backup at a date which seems to be good.
If it's not ok, go to previous page and pick another backup.
For example I chose 2014/03/01 and voilà
If you're lucky you can even use the form of the backuped page: here's the result with the defaults params.