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ADoX Deployment in the Wild

Yevheniya Nosyk

• 24 Apr 2026

• 11 min read

Encryption between DNS resolvers and users is growing - but what about the next hop? We measure the real-world deployment of encrypted resolver-to-authoritative DNS (ADoX), finding limited, highly concentrated adoption and little support among resolvers.

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Using QUIC Backscatter to Infer Hypergiant Deployment Configurations

Jonas Mücke

• 22 Apr 2026

• 10 min read

QUIC enhances privacy, but passive measurements still reveal deployment details. Using network telescope data, we analyse QUIC behaviour across major content providers and validate our findings with flow data and active measurements.

Noisy Routers: Investigating the Make-Up of Route Collector Data

Ebrima Jaw

• 15 Apr 2026

• 11 min read

Analysis of 80B+ BGP updates shows repeated "noise" is highly concentrated in a small set of peers, sessions, and prefixes, inflating datasets. Researchers from Twente, CAIDA, SIDN Labs, and IIJ examine impacts on measurement and operations.

Beyond the Network View: DNS-Driven Application Visibility

Danny Lachos

• 2 Apr 2026

• 6 min read

Network operators often lack visibility into which applications drive their traffic. We present an open-source DNS-based correlation method that enriches NetFlow and BGP data with application and CDN information. This enables a shift from a network-centric to an application-oriented view of traffic.

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Make This One Change to Prevent Routing Loops in Your Network

Maynard Koch

• 25 Mar 2026

• 5 min read

Routing loops can trap packets between routers, preventing them from reaching their destination. In some cases, routers even duplicate looping packets, amplifying traffic and threatening Internet stability. We look at how this happens and how operators can prevent it.

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Forward to Hell? On Misusing Transparent DNS Forwarders For Amplification Attacks

Maynard Koch

• 12 Feb 2026

• 10 min read

DNS infrastructure is infamous for facilitating reflective amplification attacks. Countermeasures such as server shielding, access control, rate limiting and protocol restrictions have improved the situation, but DNS-based reflective amplification attacks persist. Focusing on the threat vector intr…

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Peering Market at a Glance: Trends, Transformations, and the Regional Dynamics of Internet Interconnection

Flavio Luciani

• 10 Feb 2026

• 3 min read

Recent claims that IXPs "aren’t showing significant growth", that more interconnection is happening outside exchanges, and that peering can be more expensive than transit challenge long-standing assumptions about the role of IXPs. But do these claims hold up? A new paper from NAMEX explores the dat…

DNSSEC and PQC: Practical Impact of Increased TCP in DNS

Eline Stehouwer

• 29 Jan 2026

• 17 min read

Post-quantum cryptography could make DNSSEC responses bigger, pushing more DNS traffic from UDP to TCP. In this guest post, Eline Stehouwer (SIDN Labs) explores what that means for authoritative name servers, replaying real .nl traffic across NSD, Knot, BIND and PowerDNS.

Raffaele Sommese - The Technical Impact of Rapid-Response Blocking: Italy’s Piracy Shield

Alun Davies

• 26 Jan 2026

• 2 min read

In our latest episode, Raffaele Sommese of the University of Twente shares insights from him and his colleagues on Italy’s Piracy Shield and how rapid-response blocking works in practice. We get into the technical impact, how it can be measured, and the consequences for connectivity.

The IRR Landscape: Data Quality - the Good, the Bad, and the Outdated

Tobias Striffler

• 20 Jan 2026

• 21 min read

In the second of our IRR landscape series, we focus squarely on data quality: how accurate, current, and usable IRR routing data really is. Using freshness, DFZ alignment and RPKI conflicts, we spotlight where third-party IRRs drift and why cleanup matters.

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