Most cited

Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 11 posts.

How NAT Traversal Works (2020)

Tailscale Blog2025408 points260 commentscited by 67Networking & Internet details

Learn how NAT traversal works, how Tailscale can get through and securely connect your devices directly to each other.

Cloudflare outage on November 18, 2025 post mortem

Cloudflare Blog20251,465 points916 commentscited by 13Networking & Internet details

Cloudflare suffered a service outage on November 18, 2025. The outage was triggered by a bug in generation logic for a Bot Management feature file causing many Cloudflare services to be affected.

Ecosia is teaming up with Qwant to build a European search index

Ecosia Blog2025543 points175 commentscited by 8Tech Industry & Business details

We are proud to share the next step in our journey towards tech independence: building our very own search index!

The State of SSL Stacks

HAProxy Blog2025150 points46 commentscited by 8Security & Privacy details

The SSL landscape has shifted dramatically. In this paper, we examine OpenSSL 3.x, BoringSSL, LibreSSL, WolfSSL, and AWS-LC with HAProxy.

The Agent2Agent Protocol (A2A)

Google Developers Blog2025450 points280 commentscited by 5AI & Machine Learning details

Explore A2A, Google's new open protocol empowering developers to build interoperable AI solutions.

Cross-Platform P2P Wi-Fi: How the EU Killed AWDL

Ditto Blog2025223 points135 commentscited by 5Networking & Internet details

This post investigates how we got from Wi-Fi Direct to AWDL to Wi-Fi Aware, what makes Wi-Fi Aware technically superior, and why this shift unlocks true cross-platform peer-to-peer connectivity for developers.

DNS4EU for Public Is Available

DNS4EU2025102 points79 commentscited by 5Networking & Internet details

The free DNS4EU resolver, for everyone in Europe. Get the addresses, set it up in minutes, and block malware and phishing with no tracking.

Cloudflare outage on December 5, 2025

Cloudflare Blog2025782 points566 commentscited by 4Networking & Internet details

Cloudflare experienced a significant traffic outage on December 5, 2025, starting approximately at 8:47 UTC. The incident lasted approximately 25 minutes before resolution. We are sorry for the impact that it caused to our customers and the Internet. The incident was not caused by an attack and was due to…