Unable to access the website with redirect: server IP address could not be found

Symptoms

• Website is inaccessible with the following error message:

  www.example.com's server IP address could not be found

• On attempts to access the website by its IP, the default Plesk Web server Page is shown

• For the domain example.com, the A record on IP address of the domain at Plesk exists, for www.example.com – does not exist

  Note: It is possible to check the IP address of the domain by logging into Plesk and going to Domains > example.com > Web Hosting Access.

Cause

A DNS settings misconfiguration on a domain. Missing CNAME record on NS servers.

Resolution

Add the CNAME record on used NS servers, e.g:

www.example.com CNAME example.com

Note: It can be possibly required to contact a domain registrar or DNS service provider to add the record on nameservers.