Lesson of the day, avast sucks.
if you are using avast, the site might have been down for you today (including verification page) because avast was blocking cdn.rawgit.com and all sites that uses resources from cdn.rawgit.com (you can't just block cdn.rawgit.com and everyone who uses it!)
Anyway should be fixed for now until they decide to block ajax.googleapis.com or something as dumb...