Error guide / Неправильна A-запис DNS

Wrong A record, or www not working

If your domain's A record points to someone else's or an old IP, the browser connects to the wrong server: you'll see a stranger's placeholder, an old version of the site, or an error. A separate case is example.com working but www.example.com not (or vice versa): that means the second variant has no DNS record of its own. The domain resolves, just not where it should.

What causes it

The culprit is a wrong or missing DNS record: an A record with a stale IP after a migration, or no record for www (which needs its own A record or a CNAME to the root domain). Cloudflare or a registrar parking page can add to the confusion.

How to fix it

1. Find your server's real IP (in cPanel it's shown in the sidebar as Shared IP or Dedicated IP).
2. In the DNS zone, check the @ A record against that IP and fix it if it points elsewhere. In cPanel that's the Zone Editor.
3. For www, add its own record: a CNAME www to the root domain, or the same A record to the same IP.
4. If the domain is behind Cloudflare, edit the records there, not only in the hosting panel.
5. Flush the DNS cache (ipconfig /flushdns) and allow a few hours after any change.
6. Check both variants (with and without www) using the tool below to see where each one resolves.

Related errors

• DNS_PROBE_FINISHED_NXDOMAIN DNS_PROBE_FINISHED_NXDOMAIN error
• ERR_NAME_NOT_RESOLVED ERR_NAME_NOT_RESOLVED error
• DNS_PROBE_FINISHED_NO_INTERNET DNS_PROBE_FINISHED_NO_INTERNET error
• This site can't be reached This site can't be reached