Hello, I’m receiving the error NET::ERR_CERT_COMMON_NAME_INVALID. I’ve already connected a certificate so I’m unsure of why I’m getting this error. The website works for some people and not others. The host is Squarespace and both use NS1, so I can’t connect via name servers. I talked to Squarespace and they told me they will not remove the NS1 so I connected using ALIAS & CNAME.

Hi @Vitaleak,

Thanks for reaching out and welcome to Netlify’s Support Forums!

I’m sorry to hear about the issue with the error. Reviewing the DNS for, I do see that the CNAME Record is correctly pointing to

host is an alias for has address has address has IPv6 address 2600:1f18:16e:df00::64 has IPv6 address 2600:1f18:16e:df01::64

However, the A Record for is not pointed to Netlify’s Load Balancer IP

host has address has address has address has address mail is handled by 10 mail is handled by 10

You’ll want to update the A Record so that it’s pointing to We have a Support Guide here that can help: