Site name:
howmanyofme.netlify.app
Custom domains:
howmanyofmes.com
www.howmanyofmes.com
Issue
My website was working normally until June 7–8, 2026. The Netlify subdomain continues to work, but the custom domain now returns:
NET::ERR_CERT_COMMON_NAME_INVALID
The HTTPS section reports:
“howmanyofmes.com doesn’t appear to be served by Netlify”
and Netlify is unable to renew the Let’s Encrypt certificate.
Troubleshooting completed
• Confirmed the Netlify subdomain is working normally.
• Confirmed both custom domains are attached to the correct site.
• Confirmed DNS is managed through Netlify DNS.
• Verified DNS propagation globally.
• Confirmed the domain resolves to Netlify IP addresses.
• Confirmed www points to the Netlify subdomain.
• Confirmed Netlify DNS nameservers are configured at the registrar.
• Reviewed netlify.toml and _redirects and found nothing that should affect SSL provisioning.
• Removed and re-added the custom domain to force revalidation.
• Waited for Netlify DNS propagation to complete.
Additional observation
A TLS inspection shows the server is presenting Netlify’s default wildcard certificate (*.netlify.app) instead of a certificate for howmanyofmes.com.
The site itself is reachable through the Netlify subdomain, but the custom domain receives NET::ERR_CERT_COMMON_NAME_INVALID.
Could someone from the Netlify team please investigate whether there is a stuck SSL validation state, certificate provisioning issue, stale domain association, or another backend issue preventing certificate renewal?
Thank you.