Research
ISP Advertised vs Real Speed: 100,000 Tests
Cable ISP customers average under 75% of advertised speed during prime time. Here are the worst offenders, and how to fight back.
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DCSPEEDTEST BLOG
Internet guides, hardware reviews, latency optimization, and speedrun tips for the modern web.
Research
Fiber vs Cable: Why Upload Speed Is the Difference
Cable ISPs advertise 'Gigabit speeds,' but the fine print explains why your connection still feels sluggish compared to fiber.
Research
How Much Does ISP Speed Drop at Peak Hours?
We analyzed 90 days of data to quantify how much speed drops from morning to evening peak — by ISP type, region, and plan.