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DCSPEEDTEST BLOG

Internet guides, hardware reviews, latency optimization, and speedrun tips for the modern web.

ISP Advertised Speed vs Actual Speed: 100,000 Tests Reveal the Gap
Research

ISP Advertised Speed vs Actual Speed: 100,000 Tests Reveal the Gap

We crossed 100,000 real DCSpeedTest results with FCC Broadband Data and Ookla Q1 2026. Cable ISP customers average under 75% of advertised speed during prime time. Here are the worst offenders — and how to fight back.

By Dalto Cardoso August 14, 2025 • 8 min read
How Much Does ISP Speed Drop During Peak Hours? Our 90-Day Data Study
Research

How Much Does ISP Speed Drop During Peak Hours? Our 90-Day Data Study

We analyzed 90 days of DCSpeedTest data to quantify exactly how much speed drops from morning baseline to evening peak hours — segmented by ISP type, US region, and plan tier. The results validate years of user complaints with hard numbers.

By Dalto Cardoso May 7, 2025 • 8 min read