LinuxQuestions.org - canonical name

- LQ Suggestions & Feedback (https://www.linuxquestions.org/questions/lq-suggestions-and-feedback-7/)

- - canonical name (https://www.linuxquestions.org/questions/lq-suggestions-and-feedback-7/canonical-name-4175733822/)

Why does www.linuxquestions.org resolves to this weird canonical name?

Code:

> server 8.8.8.8

Default server: 8.8.8.8

Address: 8.8.8.8#53

> www.linuxquestions.org

Server:        8.8.8.8

Address:        8.8.8.8#53



Non-authoritative answer:

www.linuxquestions.org  canonical name = www.linuxquestions.org.cdn.cloudflare.net.

Name:  www.linuxquestions.org.cdn.cloudflare.net

Address: 104.24.137.8

Name:  www.linuxquestions.org.cdn.cloudflare.net

Address: 172.67.81.99

Name:  www.linuxquestions.org.cdn.cloudflare.net

Address: 104.24.136.8

Name:  www.linuxquestions.org.cdn.cloudflare.net

Address: 2606:4700:20::ac43:5163

Name:  www.linuxquestions.org.cdn.cloudflare.net

Address: 2606:4700:20::6818:8808

Name:  www.linuxquestions.org.cdn.cloudflare.net

Address: 2606:4700:20::6818:8908

Never seen such thing on other sites using the [expletives] cloudflare protection. And of course it is inaccessible via the canonical name:

Error 1001
Ray ID: 854ec0f28d790b02 • 2024-02-13 17:22:28 UTC
DNS resolution error
What happened?

You've requested a page on a website (www.linuxquestions.org.cdn.cloudflare.net) that is on the Cloudflare network. Cloudflare is currently unable to resolve your requested domain (www.linuxquestions.org.cdn.cloudflare.net). There are two potential causes of this:

Most likely: if the owner just signed up for Cloudflare it can take a few minutes for the website's information to be distributed to our global network.
Less likely: something is wrong with this site's configuration. Usually this happens when accounts have been signed up with a partner organization (e.g., a hosting provider) and the provider's DNS fails.

Quote:

[wpeckham@wbpdell ~]$ nslookup www.microsoft.com 8.8.8.8
Server: 8.8.8.8
Address: 8.8.8.8#53

Non-authoritative answer:
www.microsoft.com canonical name = www.microsoft.com-c-3.edgekey.net.
www.microsoft.com-c-3.edgekey.net canonical name = http://www.microsoft.com-c-3.edgekey...dir.akadns.net.
http://www.microsoft.com-c-3.edgekey...dir.akadns.net canonical name = e13678.dscb.akamaiedge.net.
Name: e13678.dscb.akamaiedge.net
Address: 23.39.178.36
Name: e13678.dscb.akamaiedge.net
Address: 2600:1405:9000:2a8::356e
Name: e13678.dscb.akamaiedge.net
Address: 2600:1405:9000:2ae::356e
Name: e13678.dscb.akamaiedge.net
Address: 2600:1405:9000:28f::356e
Name: e13678.dscb.akamaiedge.net
Address: 2600:1405:9000:2b4::356e
Name: e13678.dscb.akamaiedge.net
Address: 2600:1405:9000:284::356e

[wpeckham@wbpdell ~]$ nslookup www.linuxquestions.org 8.8.8.8
Server: 8.8.8.8
Address: 8.8.8.8#53

Non-authoritative answer:
www.linuxquestions.org canonical name = www.linuxquestions.org.cdn.cloudflare.net.
Name: www.linuxquestions.org.cdn.cloudflare.net
Address: 104.24.137.8
Name: www.linuxquestions.org.cdn.cloudflare.net
Address: 104.24.136.8
Name: www.linuxquestions.org.cdn.cloudflare.net
Address: 172.67.81.99
Name: www.linuxquestions.org.cdn.cloudflare.net
Address: 2606:4700:20::ac43:5163
Name: www.linuxquestions.org.cdn.cloudflare.net
Address: 2606:4700:20::6818:8908
Name: www.linuxquestions.org.cdn.cloudflare.net
Address: 2606:4700:20::6818:8808

Other than the cloudfare specific garbage (and the microsoft specific garbage) I see nothing unusual here.
Multi-host load sharing ...