Domain name doesn’t appear to be served by Netlify

Hello, our company name in Netlify is https://pehutec.netlify.app which is working normally and custom domain www.pehutec.com and pehutec.com are currently down due to certificate issue where certificate cannot be renewed. I have checked the DNS records that they match with the registrar and the website was running on end of June still normally but now something has happened in July that has caused following issue and we have urgent need to get website back and running.

Does the certificate need some fixing?

I also went though the guide and used curl command but i didn’t see server: netlify there

Also I have tried to flush the dns

Anyone know why this is happening do I need to remove dns zone?

Hi @Jukez17,

Kindly don’t open multiple topics about the same issue.