Why doesn't "Cloudflare 1.1.1.1" compress root answers?

Anurag Bhatia me at anuragbhatia.com
Thu Apr 5 20:22:55 UTC 2018


Hi Bjørn


Never realised of such compression on answered. Is this is something well
documented? Curious.



Thanks for sharing.

On Wed, Apr 4, 2018 at 1:30 AM, Bjørn Mork <bjorn at mork.no> wrote:

> At first I thought they had disabled compression:
>
>  bjorn at miraculix:~$ dig . ns @1.1.1.1|grep SIZE
>  ;; MSG SIZE  rcvd: 431
>  bjorn at miraculix:~$ dig . ns @8.8.8.8|grep SIZE
>  ;; MSG SIZE  rcvd: 239
>  bjorn at miraculix:~$ dig . ns @9.9.9.9|grep SIZE
>  ;; MSG SIZE  rcvd: 239
>
>
> But then I noticed that they *do* compress other names:
>
>  bjorn at miraculix:~$ dig net ns @1.1.1.1|grep SIZE
>  ;; MSG SIZE  rcvd: 253
>  bjorn at miraculix:~$ dig net ns @8.8.8.8|grep SIZE
>  ;; MSG SIZE  rcvd: 253
>  bjorn at miraculix:~$ dig net ns @9.9.9.9|grep SIZE
>  ;; MSG SIZE  rcvd: 253
>
>
> Which just makes it even more confusing.  What's so special about root?
> Except for the obvious :-)
>
>
>
> Bjørn
>
>


-- 


Anurag Bhatia
anuragbhatia.com


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