Was the IPv6 Mess predicted by IPv3, IPv4, and IPv5? IPv4 ran out of addresses and IPv6 adoption has stalled… but did you know the protocol before IPv4 already solved the IP address limit, back in the 1970s? Speedify engineers explain why IPv6 adoption has struggled, how NAT became essential to IPv4, and why parts of the internet remain effectively … Read More

How did Iran shut off the internet using network protocols? Speedify engineers explain how new details show Iran was taken offline at the network level, not by blocking apps but by cutting global internet routes. We look at network protocols like BGP (Border Gateway Protocol), routing protocols, DNS, and Internet service provider firewalls. VPNs can’t get around this shutdown in … Read More

Verizon’s massive outage knocked out 5G and LTE service for hundreds of thousands, stopping calls, texts, iMessage, and mobile data. Was it a cyberattack caused by foreign hackers? The evidence points to a software failure, especially since Verizon MVNOs stayed online. That doesn’t rule out a hack, but with no hacker claims and no signs of AI-driven attacks, it’s probably … Read More

Earth’s astronomers and scientists use radio telescopes to listen to signals from space for extraterrestrial life, but Earth’s own signals have become too quiet for the rest of the universe to hear us, even from the closest stars. Speedify engineers discuss how humanity’s radio signals have become harder to detect over time, and what that means for finding intelligent alien … Read More

JavaScript is the most widely used programming language in the world, but that popularity comes with tradeoffs. JavaScript is accessible, flexible, and everywhere, yet increasingly fragile at scale. The origins of JS trace back to Netscape’s rushed creation of a scripting language for web browsers, branded as JavaScript despite no relation to Java, and now Oracle has control of the … Read More

Is Go still the right choice for backend development in 2025 or has its concurrency model become a performance liability? Alex and Brian from Speedify break down the real-world engineering tradeoffs between Go, Rust, Node.js, and C++. They dive into Golang’s goroutines, mutex locking, race conditions, and synchronization overhead, explaining how these issues surfaced at scale inside Speedify’s infrastructure. Using … Read More