Measuring QoE Impact of DoE-based Filtering

Mbewe, Enock Samuel and Chavula, Josiah (2021) Measuring QoE Impact of DoE-based Filtering, Proceedings of Southern Africa Telecommunication Networks and Applications Conference (SATNAC) 2021, 20-23 November 2021, Champagne Sports Resort, Central Drakensberg, KwaZulu-Natal, South Africa, 240-245, SATNAC.

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Abstract

In this paper, we analyse the impact of DNS-based filtering on Quality of Experience (QoE). We use three DNS standard protocols: regular DNS (Do53), DNS over HTTPS (DoH) and DNS over TLS (DoT) on Quality of Experience. We conduct measurements against four open public DNS service providers (Cloudflare, CleanBrowsing, Adguard and Quad9) under three network conditions; Campus wired network, Eduroam and 4G. We aim to establish whether the filters from the same provider have statistically significant differences. This information could be used by Internet users and Internet Service Providers to make sound decisions when choosing DNS privacy services. The results show significant DNS response time and page load time differences between non-filtered and filtered DNS recursive resolvers from Cloudflare, Adguard and Quad9. We do not observe significant differences in page load times when CleanBrowsing resolvers are used despite observing significant differences in DNS response times. The results further show that some filters would provide better QoE than non-filtered counterparts.

Item Type: Conference paper
Uncontrolled Keywords: Internet performance, DNS privacy, DNS measurements, DNS filtering, QoE, QoP, DoH, DoT, Do53
Subjects: Security and privacy
Networks
Networks > Network performance evaluation
Date Deposited: 03 Dec 2021 11:35
Last Modified: 03 Dec 2021 11:35
URI: https://pubs.cs.uct.ac.za/id/eprint/1508

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