1.1.1.1 not preserving DNS capitalization


#1

Unlike Google’s DNS, Cloudflare’s DNS resolver does not preserve capitalization in hostnames. Is there any reason why? This this only a cosmetic thing, but in some cases, capital letters would look a lot better than being converted to all lower case.

An example would be msft.azureedge.net:

Server: one.one.one.one
Address: 1.1.1.1

Non-authoritative answer:
Name: standard.t-0001.t-msedge.net
Addresses: 2620:1ec:bdf::10
13.107.246.10
Aliases: msft.azureedge.net
msft.afd.azureedge.net
afd.t-0001.t-msedge.net
t-0001.t-msedge.net
edge-prod-dalr3.ctrl.t-0001.t-msedge.net

Server: google-public-dns-a.google.com
Address: 8.8.8.8

Non-authoritative answer:
Name: standard.t-0001.t-msedge.net
Addresses: 2620:1ec:bdf::10
13.107.246.10
Aliases: msft.azureedge.net
msft.afd.azureedge.net
afd.t-0001.t-msedge.net
t-0001.t-msedge.net
Edge-Prod-DALr3.ctrl.t-0001.t-msedge.net

As you can see, cloudflare’s resolver removes all capitalization, while Google’s keeps the capitalization