Analyzing the costs (and benefits) of DNS, DoT, and DoH for the modern web
Analyzing the costs (and benefits) of DNS, DoT, and DoH for the modern web
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分析现代网络的 DNS、DoT 和 DoH 的成本（和收益）
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
N. Feamster
中科院分区：
文献类型：
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作者：
Austin Hounsel;Kevin Borgolte;Paul Schmitt;Jordan Holland;N. Feamster
我们测量DoH和DoT对名称解析性能和内容交付的影响。我们发现，虽然DoH和DoT的响应时间可以高于传统的DNS（Do53），DoT表现优于DoH和Do53的页面加载时间。然而，当网络条件恶化时，Do53的网页加载速度最快，与DoH相比快了一秒。此外，在大量的情况下，网页可能根本无法加载DoH，而它可以成功加载DoT和Do53。我们的深入分析揭示了各种可以轻松提高DNS性能的机会，例如通过机会性部分响应和线格式缓存。
We measure the effect of DoH and DoT on name resolution performance and content delivery. We find that although DoH and DoT response times can be higher than for conventional DNS (Do53), DoT performs better than DoH and Do53 in terms of page load times. However, when network conditions degrade, webpages load quickest with Do53, and up to one second faster compared to DoH. Furthermore, in a substantial amount of cases, a webpage may not load at all with DoH, while it loads successfully with DoT and Do53. Our in-depth analysis reveals various opportunities to readily improve DNS performance, for example through opportunistic partial responses and wire format caching.