Symptoms
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Website is inaccessible with the following error message:
www.example.com's server IP address could not be found
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On attempts to access the website by its IP, the default Plesk Web server Page is shown
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For the domain
example.com
, the A record on IP address of the domain at Plesk exists, forwww.example.com
– does not existNote: 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.
Workaround
- Log into Plesk
- Go to Domains > example.com > Hosting Settings
- Select non-www URL under the Preferred domain option