Subdomains without the "cloud" are updating http to https

Website, Application, Performance DNS & Network
#1

Hi,
I have a dynv6 ddns and my problem is when I create a CNAME subdomain “let’s call it x.domain.dev” without “cloud” enabled (and pointing to the dynv6 address of course) http is automatically updated to https. And nothing helps, not if I disable SSL mode or if I create a page rule that disables SSL specifically for that subdomain. But before I had a dynv6 (i.e. a ddns with IPv4) directly on Cloudflare with the API it worked without any problems. So when I created a subdomain without the “cloud”, http worked with no problems.

I’ve trief this so far:

  • Rule with: “Disable Security, SSL → Off, Disable Apps, Disable Performance”
  • SSL/TLS Settings: SSL to Off, Always Use HTTPS → Off, HSTS → Off, Automatic HTTPS Rewrites → Off, Disable Universal SSL

I hope anyone can help me.

#2

.dev is configured for HSTS by the registry, so clients following HSTS (e.g. browsers) will always use HTTPS. You cannot downgrade to HTTP.

1 Like
#3

Okay but why it worked before?

#4

It didn’t. The registry enforces HTTPS.

If you need HTTP, you can’t use .dev.

#5

This isn’t true it worked before.

#6

Then you need to contact your browser vendor as their HSTS implementation does not work.

#7

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