Privacy
Your ISP Has Been Selling Your Data — The Proof
Every major US ISP can legally sell your browsing history and location data. We filed FOIA requests and got the receipts.
Blog
DCSPEEDTEST BLOG
Internet guides, hardware reviews, latency optimization, and speedrun tips for the modern web.
Education
Speed Tests Are Lying to You: Get Your Real Speed
ISPs optimize networks specifically to boost numbers on popular test sites. Here's the 4-step protocol to see your real speed.
Troubleshooting
Zoom Keeps Freezing? Fix It Without Upgrades
500 Mbps and flawless speed tests, but calls still freeze? We analyzed 40,000 bad Zoom calls and found the real culprit: jitter.
Research
Americans Pay 4x More for Slower Internet Than 23 Countries
We compared broadband bills and speeds across 1.4M users in 40 countries. Americans often pay far more for slower internet.
Troubleshooting
Car Speed Test: How to Test and Boost Your In-Vehicle Wi-Fi
A first-person look at in-car cellular hotspots, Tesla connectivity, and OBD-II routers — and how to boost your signal.
Guides
OVH Speed Test 2026: Why Engineers Trust OVH Nodes
Why standard Speedtest.net nodes give false positives for VPS speed, and how to correctly test bandwidth to OVH datacenters.
Guides
Train Speed Test: Why Wi-Fi on Trains Is Always Terrible
Why WiFi on trains is always terrible — cellular handover delays, packet drops, and the metal Faraday cage effect explained.
Guides
How to Test Internet Speed Correctly: My 5-Step Protocol
The definitive network engineering checklist to get a true throughput reading, bypassing WiFi interference, device congestion, and ISP speed prioritizing.
Troubleshooting
DNS Speed Test: How to Pick the Fastest DNS Server
A hands-on technical audit of DNS speeds comparing Cloudflare, Google, Quad9, and local ISP resolvers, with tools and steps to lower your web lookup latency.
Sponsored
See Today's Featured Offer →