Custom domain SSL is valid but certain browsers say "site insecure"

As the title says, my custom domain SSL is valid in the Netlify dashboard and in the browser, but certain browsers say “site insecure” despite that. The strange part is that the internalName.netlify.app site has no issues so I know it’s not the website code.

Notes:

  • There is a static Astro site with no API calls or backend so no data is being transmitted back by a potential visitor.
  • I cannot provide the domain or name of site as it’s still being worked on. That being said, it is fully functional, both in my local dev and deployed here with Netlify.
  • I have a feeling this is something with how Netlify handles custom domains
  • Flattened CNAME record in CloudFlare pointing to apex-loadbalancer.netlify.com
  • I did not have this issue on CloudFlare pages

I hope a Netlify employee can message me privately about this since I don’t have a paid subscription yet as I am testing out your service compared to CloudFlare, Vercel and GH

for those wondering, while I wait for a reply, I just flipped my DNS over to my CF pages deploy (same exact source code repo btw) since that does not have Netlify’s issue and I can have a working public site.

Really hope an employee or Netlify veteran can jump in here and tell me why this is an issue only on this platform. Worse case, I just don’t buy your product and stay with CloudFlare

I’ve routed this request to our helpdesk, we’ll follow up via email.

1 Like

Fantastic, thank you!