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Introducing Cloudflare Registrar
“I love my domain registrar.” Has anyone ever said this? Before Cloudflare even launched in 2010, our early beta customers were literally begging us: "Will you please launch a registrar too?!"
Top posts
Every blog post that took off on Hacker News, ranked by the votes of its best submission. 3,021 posts.
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An Introduction to Meshtastic
Discover Meshtastic: a community-driven, open-source project using LoRa radios for long-range, off-grid communication.
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WebSockets vs. Server-Sent-Events vs. Long-Polling vs. WebRTC vs. WebTransport
Learn the unique benefits and pitfalls of each real-time tech. Make informed decisions on WebSockets, SSE, Polling, WebRTC, and WebTransport.
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The curious case of the Raspberry Pi in the network closet
Personal Blog of Christian Haschek
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Running your own secure communication service with Matrix and Jitsi
Matrix, the open protocol for secure decentralised communications
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Sen. Wyden Confirms Cell-Site Simulators Disrupt Emergency Calls
Sen. Ron Wyden has sent a letter to the U.S. Department of Justice concerning disruptions to 911 emergency services caused by law enforcement’s use of cell-site simulators (CSS, also known as IMSI catchers or Stingrays). In the letter, Sen. Wyden states that:Senior officials from the Harris...
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The New Internet
Tailscale's CEO, Avery Pennarun, explores the future of the internet, discussing the evolution of networking, the issues with today's complex systems, and how Tailscale is simplifying connectivity for developers with a new, more efficient approach. Discover the vision for a New Internet.
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Bitchat for Gaza – messaging without internet
Bitchat is a new messaging app that allows users to chat securely with or without internet access. Download it today via the App Store or Google Play store to begin communicating safely, even when connectivity disappears. Why Bitchat is needed Palestinians are dependent on Israel for their access to electricity,
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Possible upcoming attempts to disable the Tor network
The Tor Project has learned that there may be an attempt to incapacitate our network in the next...
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IP Spoofing
The recording and slides are available, but for easier consumption here's a transcript.
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What Happens When A Twitter Client Hits The Token Limit
Remember when Twitter said that client-app developers would need to “work with us directly” and “need our permission” to exceed 100,000 user-login tokens?
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OpenAI’s WebRTC problem
Media over QUIC: There are ways to do voice AI without being traumatized by WebRTC.
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Starlink review, four months in
SpaceX's Starlink internet service uses satellites in low-earth orbit to provide high-speed Internet to underserved parts of the world, especially places without easy access to cable or fiber. SpaceX's Starlink beta opened up in my area, so I installed Dishy—that's the nickname for the large white satellite dish…
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Gas Leak in the Baltic Sea
After the three gas leaks on the Nord Stream gas pipelines in the Baltic Sea, the Danish Defence deployed the frigate Absalon and the pollution control vessel Gunnar Thorson, as well as a helicopter capacity.
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Fun with IP address parsing
A quick rundown of the many text representations of IP addresses.
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Cloudflare servers don't own IPs anymore so how do they connect to the internet?
In this blog we'll discuss how we manage Cloudflare IP addresses used to retrieve the data from the Internet, how our egress network design has evolved, how we optimized it for best use of available IP space and introduce our soft-anycast technology
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Critical Bluetooth vulnerability in Android
On November 3rd, 2019, we have reported a critical vulnerability affecting the Android Bluetooth subsystem. This vulnerability has been assigned CVE-2020-0022 and was now patched in the latest security patch from February 2020. The security impact is as follows:
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One week of Libera Chat
The state of the network after one week of operation.
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Let's Encrypt now fully supports IPv6
Let’s Encrypt is happy to announce full support for IPv6. As IPv4 address space is exhausted, more and more people are deploying services that are only reachable via IPv6. Adding full support for IPv6 allows us to serve more people and organizations, which is important if we’re going to encrypt the entire Web. IPv6 is…
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QUIC and HTTP/3 Support Now in Firefox Nightly and Beta
Support for QUIC and HTTP/3 is now enabled by default in Firefox Nightly and Firefox Beta. HTTP/3 will be available by the end of May.
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Native Matrix VoIP with Element Call
Hopefully in-person meet-ups will prove much easier in 2022 - but, there’s still a need for video calls, so let’s face it, they’re here to stay. This makes it really exciting to present Element Call: the world’s first decentralised voice and video conferencing app powered entirely
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The Day the Telnet Died
On January 14, 2026, global telnet traffic observed by GreyNoise sensors fell off a cliff. A 59% sustained reduction, eighteen ASNs going completely silent, five countries vanishing from our data entirely. Six days later, CVE-2026-24061 dropped. Coincidence is one explanation.
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HTTP-over-QUIC will officially become HTTP/3
The protocol that's been called HTTP-over-QUIC for quite some time has now changed name and will officially become HTTP/3. This was triggered by this original suggestion by Mark Nottingham. The QUIC Working Group in the IETF works on creating the QUIC transport protocol. QUIC is a TCP replacement done over UDP…