Subject: Remove wildcard SSL requirement for external-DNS site — certificate renewal failing

Hi Netlify Support,

My site is benevolent-torte-f5aaea.netlify.app and my custom domain is chemicalmechanix.com (with www.chemicalmechanix.com).

My DNS is managed externally at Namecheap (not Netlify DNS). The domain was originally set up on Netlify DNS, so a wildcard certificate (*.chemicalmechanix.com) was provisioned back in November 2025. I’ve since moved DNS to Namecheap and deleted the old Netlify DNS zone.

The certificate renewal is now failing with:

SniCertificate::CertificateValidationError: Unable to verify challenge for
*.chemicalmechanix.com: DNS problem: NXDOMAIN looking up TXT for
_acme-challenge.chemicalmechanix.com

This is expected — the wildcard requires a DNS-01 challenge that can’t be satisfied with external DNS. I do not need a wildcard; I only serve the apex and www.

Could you please remove the wildcard certificate requirement from this site and trigger a standard Let’s Encrypt certificate for:

validated via HTTP-01? My DNS is already correctly pointed at Netlify:

  • A @ → 75.2.60.5
  • CNAME www → benevolent-torte-f5aaea.netlify.app

Thank you for your help.