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



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