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Re: [Resolverless-dns] Paper on Resolver-less DNS

Erik Sy <sy@informatik.uni-hamburg.de> Wed, 04 September 2019 21:23 UTC

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References: <54892F22-27E4-4444-9CC8-2D9E84A9668F@dukhovni.org> <4ec7dd1d-e914-0adb-4240-296f2f762b5f@informatik.uni-hamburg.de> <ADC6E119-0EED-4990-A975-F594C9282872@dukhovni.org> <64650d58-924f-c0f3-d181-614d59527477@informatik.uni-hamburg.de> <20190830053023.GE90696@straasha.imrryr.org> <f81ec73d-879e-0427-e11b-0973e01034c3@informatik.uni-hamburg.de> <20190902213241.GI70599@straasha.imrryr.org> <88cef6e4-73bd-7324-8509-a1acbd77750e@informatik.uni-hamburg.de> <CA+nkc8CLO7TwB1zFstjSCGNBvWUaBX1E2uvBQOkSMEAmFxP3yA@mail.gmail.com> <726fa997-8b7c-495e-623a-ccb299e36c1f@informatik.uni-hamburg.de> <20190904145018.GO70599@straasha.imrryr.org>
From: Erik Sy <sy@informatik.uni-hamburg.de>
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Date: Wed, 4 Sep 2019 23:23:41 +0200
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Subject: Re: [Resolverless-dns] Paper on Resolver-less DNS
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On 9/4/19 16:50, Viktor Dukhovni wrote:
> That said, browsers do DNS lookups in parallel, and the user's
> resolver will often already have the answers in its cache.  Is the
> resulting reduction in latency really worth the added complexity
> and potential risks?
>
Research work indicates that about 5% of DNS transactions take longer
than 100ms [1]. Furthermore, it is known that an additional delay of
100ms of the website load time reduces the conversion rate by about 7%
[2]. These facts highlight that achieving a fast website load time
really matters and that additional DNS lookups can significantly delay
the website load time. In my view, the performance gains of
resolver-less DNS are really worth it.

Erik

1: http://www.icir.org/mallman/papers/passive-dns-ccr13.pdf

2:
https://www.akamai.com/uk/en/about/news/press/2017-press/akamai-releases-spring-2017-state-of-online-retail-performance-report.jsp

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