>>/9077/
> custom domains on blogspot/blogger
By that I think you mean "somethingblogger.com" (I don't have a real example):
https://wiki.archiveteam.org/index.php?title=Blogger&diff=prev&oldid=51239
^includes this text:
> (\S+\.blogspot|\S*blogger)\.\S+
> Fix regex to catch blogger.com URLs that aren't on a subdomain
> Blogger subdomain (e.g. http://foobar.blogspot.com), not custom domains (e.g. http://foobar.com)