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Internet measurement

Internet measurement

A Bestiary of Blocking: The Motivations and Modes behind Website Unavailability

This paper examines different reasons for web inaccessibility. Prior work on accessibility mostly focuses on censorship by nation-states. We look at three forms of server-side blocking: blocking visitors from the EU to avoid GDPR compliance, blocking based upon the visitor’s country, and blocking due to security concerns. We argue that Read more…

By admin, 3 yearsJuly 29, 2022 ago
Internet measurement

Scanning the Internet for Liveness

Internet-wide scanning depends on a notion of liveness: does a target IP address respond to a probe packet? However, the interpretation of such responses, or lack of them, is nuanced and depends on multiple factors, including how we probed, how different protocols in the network stack interact, the presence of Read more…

By admin, 3 yearsJuly 29, 2022 ago
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