Adding custom domain to app failing?

Hello

So I had a site working fine in netlify for a while, it seemed to stop working, the site cannot be found, so I removed it and added it again. Still no joy on the site custom domain loading.

I used httpstatus.io and I’m getting the following error.

Hostname/IP does not match certificate's altnames: Host: optimo.io. is not in the cert's altnames: DNS:*.netlify.com, DNS:netlify.com

Any help would be great, I feel like something might need tweaking either on my account directly or in netlify DNS.

Thanks
Steve

which custom domain is this regarding?

Hey Perry

It was in the error message. It’s optimo.io.

Thanks

Yep, just a small tweak needed!

DNS for your www looks great:
$ host www.optimo.io
www.optimo.io is an alias for optimo-marketing.netlify.app.

But your bare domain could use some love:
$ host optimo.io
optimo.io has address 165.227.0.164
optimo.io has IPv6 address 2604:a880:2:d0::1354:7001

That A record IP address should be changed to 104.198.14.52. And you’ll want to delete that IPv6 record.

Then click the Renew certificate button in our UI and you’ll have things working better in no time.