Measuring Doh with Web Ads

12 Pages Posted: 12 Jan 2022

See all articles by Patricia Callejo

Patricia Callejo

affiliation not provided to SSRN

Marcelo Bagnulo

Charles III University of Madrid

Jaime González Ruiz

affiliation not provided to SSRN

Andra Lutu

Telefonica Research

Alberto García Martínez

affiliation not provided to SSRN

Ruben Cuevas

Charles III University of Madrid

Abstract

In this paper we present a large measurement study of the impact on the performance of the adoption of HTTPS as a transport for the DNS protocol (DoH) with public resolvers compared to the existent approach of using non- encrypted transport of DNS queries with the resolver services locally provided by ISPs. In our study, we perform over 42 million measurements from more than 4 million vantage points distributed in 32 countries and served by over 2,500 ISPs. We find that, the median resolution time increased 17 ms when using DoH with Cloudlfare, 41 ms when using DoH with Quad9, 68 ms when using DoH with Google and 170 ms when using DoH with DNS.SB, compared to using Do53 with the local resolver for a non-cached name. We find similar increases even when using caching.

Keywords: DNS security, DoH, Measurements

Suggested Citation

Callejo, Patricia and Bagnulo, Marcelo and González Ruiz, Jaime and Lutu, Andra and García Martínez, Alberto and Cuevas, Ruben, Measuring Doh with Web Ads. Available at SSRN: https://ssrn.com/abstract=4007162 or http://dx.doi.org/10.2139/ssrn.4007162

Patricia Callejo

affiliation not provided to SSRN ( email )

No Address Available

Marcelo Bagnulo (Contact Author)

Charles III University of Madrid ( email )

Jaime González Ruiz

affiliation not provided to SSRN ( email )

No Address Available

Andra Lutu

Telefonica Research ( email )

West 1 Building
Madrid, 28050
Spain

Alberto García Martínez

affiliation not provided to SSRN ( email )

No Address Available

Ruben Cuevas

Charles III University of Madrid ( email )

CL. de Madrid 126
Madrid, Madrid 28903
Spain

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