Guides
LiFi: How Lightbulbs Could Deliver 100 Gbps
Discover the amazing science of Visible Light Communication (VLC) and simulate photodiode data capture in our interactive demo.
Blog
DCSPEEDTEST BLOG
Internet guides, hardware reviews, latency optimization, and speedrun tips for the modern web.
History
How Jack Dorsey Built Twitter's Real-Time Newsroom
In 2006, a quiet programmer wondered if you could broadcast your current status to friends via SMS. Discover the history of Jack Dorsey's Twitter.
Guides
Why Tor Routing Slows Down the Dark Web
Discover why Tor browser speeds are incredibly slow compared to regular browsers due to its heavy multi-layered onion routing mechanism.
History
Ray Tomlinson and the '@' Symbol That Unified Email
In 1971, a quiet programmer sent a test message between two computers. Here's why he chose '@' and how it changed communication.
History
How Mark Zuckerberg Hooked Three Billion Minds
From a simple Harvard dorm project to the dominant social web monopoly. Discover the technical and behavioral history of Mark Zuckerberg's Facebook.
Guides
Project Loon: Google's Plan to Beam Internet From Balloons
Discover the spectacular engineering behind Google's stratospheric internet balloon network and test altitude signal loss in our simulator.