Windows 10 reached EOS (end of support) on October 14, 2025. For more information, see this article.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

DOH appears to not resolve specific domains

  • 1 freagra
  • 0 leis an bhfadhb seo
  • Freagra is déanaí ó MarkRH

I am using 140 ESR version on linux with Cloudflare's DNS over HTTPS and with DOH active for some reason resolving a domain like d3oklwo3y1bx83.cloudfront.net will resolve to local host IP 127.0.0.1.

I am using firefox about:networking#dnslookuptool to test resolution of the domain d3oklwo3y1bx83.cloudfront.net Both with DOH on and off the resolution remains local host. I tried another browser on the same workstation and I was able to receive a resolution of 13.225.193.203 13.225.193.133 13.225.193.64 13.225.193.58 Why is firefox ESR not able to resolve that domain? What are causes ?

Is is firefox dnslookuptool results.

I am using 140 ESR version on linux with Cloudflare's DNS over HTTPS and with DOH active for some reason resolving a domain like d3oklwo3y1bx83.cloudfront.net will resolve to local host IP 127.0.0.1. I am using firefox about:networking#dnslookuptool to test resolution of the domain d3oklwo3y1bx83.cloudfront.net Both with DOH on and off the resolution remains local host. I tried another browser on the same workstation and I was able to receive a resolution of 13.225.193.203 13.225.193.133 13.225.193.64 13.225.193.58 Why is firefox ESR not able to resolve that domain? What are causes ? Is is firefox dnslookuptool results.
Attached screenshots

All Replies (1)

I have DoH set to Increased Protection using Cloudflare and when I do a DNS Lookup at about:networking#dnslookuptool I got the following back:

IPs 52.222.157.111 52.222.157.127 52.222.157.189 52.222.157.6 HTTPS RRs 1 d3oklwo3y1bx83.cloudfront.net (alpn="h2,h3" )

I am on Firefox release 147.0.3. So, seems like it should be working.

Cuir ceist

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.