- Serving the same content on two base URLs, due to hosting the same content in www.chosendomain.com and chosendomain.com.
- The web server is not running on the base domain, only on www subdomain, which results in a page not available type error that confuses people that forget to type the www. part of the URL - this is a loss of potential customers, and hence the "Epic Fail" title for this post.
To do a simple redirect, check your tutorial at this link: URL redirection www or non-www.
Errors of not serving nor redirecting www. base domain
SSL errors due to lack of non-www redirection
This is a particularly interesting error, since I hadn't met it yet. I was finding it strange that this website had an invalid domain and further research unveiled that the certificate authority issued it only for www.uzo.pt and not uzo.pt, which is expected. A simple redirect fiex