Site not working after a DNS change
What to check when the site does not work or shows the old version after changing nameservers or A records.
After changing nameservers or DNS records the changes do not show everywhere immediately. Before looking for a fault, check whether the change has been applied at all.
Symptoms#
- the site does not open or shows the registrar's page or a parked page,
- you see the old site or the server's default page,
- the site works on one network or device and not elsewhere,
- email does not arrive after the change.
Causes#
- the DNS change is still propagating (DNS propagation),
- nameservers were entered wrongly or only partly (Point your domain),
- leftover records at the old DNS or an A record pointing to the wrong IP address,
- the domain was not added in cPanel as the main or an addon domain,
- your computer uses a hosts entry or cache (Preview your site before DNS),
- missing or wrong MX records.
Fix#
- Check the nameservers at the registrar: they must be exactly rea.scyhost.com and zara.scyhost.com, with no spaces or old entries.
- Check the records with a public DNS lookup tool and compare them with what is expected (DNS records explained).
- Check the hosts file and delete the line you added for testing.
- Clear the cache of the browser and of DNS on your computer (
ipconfig /flushdnson Windows) and try from a mobile network. - In cPanel check that the domain has been added (Domains) and points to the right folder.
- Wait and check again. We cannot guarantee the exact duration because it depends on the caching of individual providers.
Ticket#
If enough time has passed, open a ticket with the domain, the time of the change, the DNS lookup results and the registrar.
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Preview your site before changing DNSHow to check that your site works on ScyHost before pointing your domain to it.Point your domain to ScyHostHow to change nameservers at your registrar so your domain opens your site on ScyHost.DNS records explainedWhat A, AAAA, CNAME, MX, TXT and NS records mean and when you change them.DNS propagationWhy a DNS change is not instant, how to check it and what to do while you wait.