Ddc.ph fails HTTPS in Firefox and Opera – SSL_ERROR_INTERNAL_ERROR_ALERT / ERR_SSL_PROTOCOL_ERROR

Support
1

Hi Netlify Team,

I’m hosting my site on Netlify using the domain www.ddc.ph as the primary domain. The DNS setup is correct:

  • @ A records → 75.2.60.5 and 99.83.190.102
  • www CNAME → Netlify subdomain
  • SSL certificate is active and valid for both ddc.ph and www.ddc.ph (verified via certificate inspector)

The main domain www.ddc.ph works perfectly in all tested browsers:

:white_check_mark: Chrome
:white_check_mark: Firefox
:white_check_mark: Edge
:white_check_mark: Opera Mobile

However, ddc.ph (apex domain) fails in multiple browsers:

| Domain        | Chrome | Firefox (desktop)              | Edge                          | Opera (mobile)         |
|---------------|--------|--------------------------------|-------------------------------|------------------------|
| www.ddc.ph    | ✅     | ✅                             | ✅                             | ✅                      |
| ddc.ph        | ✅     | ❌ SSL_ERROR_INTERNAL_ERROR_ALERT | ⚠️ Redirects automatically to www | ❌ Internal error       |

Steps already taken:

  • Removed and re-added the ddc.ph domain in Netlify
  • Manually renewed the SSL certificate (now valid for both domains)
  • Confirmed proper DNS and SANs in the certificate
  • Cleared DNS, HSTS, and site data in browsers
  • Removed _redirects and netlify.toml to rely on Netlify’s automatic handling
  • Tested in private/incognito mode across all browsers

At this point, it looks like Netlify’s CDN is serving a broken TLS response for the apex domain ddc.ph, even though everything is configured correctly and the cert appears valid.

Can you please re-provision or reset the apex domain handling for ddc.ph?

Thanks,
Kaja Rejewska

2

Hi, @Kaja_Rejewska. The IP address 99.83.190.102 is not used by Netlify. That is wrong and the cause of this issue.

Delete that record, wait four hours after deleting it, and then the issue should be resolved.

3

Thanks!!

The site started working the next day without even removing the wrong IP, but I have removed it now and it seems to be correct, warning from Netlify configuration page also disappeared. Everything is good now :slight_smile: