On Tue, 26 Mar 2019 at 10:48, Paul Vixie <p...@redbarn.org> wrote:

>
>
> Ian Swett wrote on 2019-03-25 01:28:
> > One way DoH may be faster than DoT in the near future is that DoH can go
> > over HTTP/3 via QUIC and avoid head of line blocking like Do53.
> Do53/UDP has no HoL prolem.
>
> nor does Do853/TCP.
>

TCP suffers from network head-of-line blocking.

-Tiru


>
> only Do53/TCP had an HoL problem, so, it was never widely used, and has
> been replaced by Do853/TCP.
>
> --
> P Vixie
>
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