Site has become unavailable after client adjusted DNS settings

Hi there!

I have a bit of a challenge today. I’ve been happily using Netlify for over 3 years on a client project, but the client needed to configure some new email setup and decided to give it a shot themselves.

The end result: the site is unreachable, and I get the following warning message in the dashboard:

Netlify site name:
Custom domain name:

The client claims to have only added an A and AAAA record and edited a TXT record. They said not to have changed anything else, especially nothing related to the nameservers.

I have tried to reset the DNS records by only applying the default values from the external provider (, but I still get the same behaviour…

Running dig ns seems to point to the right nameservers:		3600	IN	NS		3600	IN	NS		3600	IN	NS		3600	IN	NS

Also, editing DNS records in the Netlify dashboard do seem to be taken effect when testing with the dig command.

I’m pretty clueless on what else to try. Could someone please help me out? Any help or direction would be much appreciated!

List of current DNS records:

Hi, @r-oland1. The DNS records that normally route this domain to the systems that host the sites at Netlify are the NETLIFY and NETLIFYv6 type DNS records above.

When the A and AAAA type records were created, they overrode the NETLIFY and NETLIFYv6 type records for the same domain names ( and Because those IP addresses in the A and AAAA don’t point to Netlify’s systems, adding them took the site down at Netlify for those domain names. If you delete those A and AAAA records, the site’s Netlify hosting will start working again.

If there are other questions about this, please let us know.

1 Like

Your’r a life save Luke! Thanks for the quick support! :slightly_smiling_face:

For future readers: this thread helped me out as well in gaining some context.