Good morning, I have a 301 redirect problem with some of my subdomains and I can't solve the problem. my domain name dashboard.example.com or other subdomains refer to blog.example.com (always on the same subdomain) I have 3 domain names with each of the subdomains, I use cloudflare and I activated ssl with cloudflare which I entered directly into the ssl isp config tab of my domain names in the form of *. example.com I checked the vhosts, the redirection tab of my domain names and under vhost domain in isp config, no redirection, I checked on cloudflare no redirection. I even created a new subdomain to see and it always returns to blog.example.com no htaccess file with redirections, I've been going around in circles for 1 week, I don't understand, have you ever experienced this error? thank you
You should start with this: https://forum.howtoforge.com/threads/please-read-before-posting.58408/ Do all stuff there. Then examine the part "When visiting domain B, the content domain A is showing" to rule out that problem (or fix that if you discover that was the problem). Try creating subdomain 00aa.example.com to see if now that subdomain is shown, this indicates the first domain in alphabetic order is the one that gets shown, so read again domain B, content of domain A. You could try Internet Search Engines with Code: debug http redirect , or use https://www.redirect-checker.org/ . Certificates: are you using Let's Encrypt certificates? There is https://forum.howtoforge.com/threads/lets-encrypt-error-faq.74179/