Forgotten ssl certificate for www. subdomain

www. subdomain has missing ssl certificate so firefox gives error like : Websites prove their identity via certificates. Nightly does not trust this site because it uses a certificate that is not valid for www . rubyonrails . org . The certificate is only valid for the following names:,,,,

I just tried visiting, and it immediately redirected to prefix-less There are a LOT of sites that do this, by the way, enough that there’s a whole collection of Internet Arguments, pro and con, around it.


hi walter the https:// www page and http:// www pages are completely different 2 pages. Please check screen shots of those 2 websites: https:


I can’t replicate your findings here. If I go to, I get redirected to, and I see the modern (cartoons) site in either case. How are you able to stay on the old site without being redirected?


Steps : 1- Enter any browser ( whether mobile or desktop ) 2- Enter url as
2.1 - url must be not because that one redirects to 3-Tadaaa (just give temporary permission about lack of ssl certifiate )

Wow. That’s a whole other site that I’ve never seen before. I wonder why it is parked at www – that doesn’t seem to have anything to do with the content. Aha. Seems to be a lingering DNS mis-configuration. Here’s the actual address of that page, working correctly in https: