English

Demystifying content-blockers: A large scale study of actual performance gains

Networking and Internet Architecture 2020-02-06 v1

Abstract

With the evolution of the online advertisement and tracking ecosystem, content-filtering has become the reference tool for improving the security, privacy and browsing experience when surfing the Internet. It is also commonly believed that using content-blockers to stop unsolicited content decreases the time needed for loading websites. In this work, we perform a large scale study with the 100K most popular websites on the actual performance improvements of using content-blockers. We focus our study in the two most relevant metrics for user experience; bandwidth and latency. Our results show that using such tools results in small improvements in terms of bandwidth usage but, contrary to popular belief, it has a negligible impact in terms of loading time. We also find that, in the case of small and fast loading websites, the use of content-blockers can even result in increased browsing latency.

Keywords

Cite

@article{arxiv.2002.01735,
  title  = {Demystifying content-blockers: A large scale study of actual performance gains},
  author = {Ismael Castell-Uroz and Josep Solé-Pareta and Pere Barlet-Ros},
  journal= {arXiv preprint arXiv:2002.01735},
  year   = {2020}
}
R2 v1 2026-06-23T13:31:47.895Z