The unique speed tests tested are mentioned in this overview.
Unique speed tests
- Astound - Old, not recommended due to variable results and an outdated interface
- Bandwidth Place - Old, not recommended due to structural inaccuracy
- Bredbandskollen - Ambiguous results, hence not recommended, although there are a lot of interesting options
- Broadband Internet Speed test - Not recommend, no results at all
- Broadband Speed Checker - Too slow to recommend for general use
- Cloudflare - Very informative, too slow to recommend for general use
- Comparitech - No added value compared to other speed tests
- DSLReports - An oldie, not recommended, too prone to errors
- Fast - Revolutionary at launch, too slow to recommend for general use
- Fireprobe - A decent speed test, but too slow to recommend for general use
- Google Fiber - A highly recommended speed test
- Internet Speed at a Glance - Ideal for quickly checking internet problems
- LibreSpeed - Ambiguous results, hence not recommended, probably a base for an excellent speed test
- Measurement Lab (M-Lab) - Excellent, part of an open source research project
- Meter.net - A sympathetic speed test, although not recommended
- nPerf - Requires a big screen, results vary a lot hence not recommended
- Ookla Speedtest - The gold standard, although there are better speed tests
- OpenSpeedTest™ - Ambiguous results, hence not recommended, probably a base for an excellent speed test
- SamKnows Speed Test - Too slow to recommend for general use
- Speedcheck™ - Ambiguous results and slightly to slow, hence not recommended
- SpeedOf.me - Realistic speed test which gives your true internet speed, too slow to recommend for general use
- SpeedOf.me API Sample Page - A practical, fast realistic speed test. Could be the basis for the ultimate speed test
- SpeedSmart - Apart from the time to complete, a flawless speed test
- Speedtest4.php - Very inaccurate, hence not recommended
- Testmy.net - The oldest speed test there is, and still going strong
- Toast - An old speed test with a with a special way of measuring. Very inaccurate, hence not recommended
- Which Broadband Checker - Systematically too low measurements and too slow. Not recommended
- Xfinity Speed Test - Not recommended due to a large deviation
Clones
- MyCCI - An Ookla speedtest. There isn't a clear link to the privacy policy
- Optimum Online - An Ookla speedtest. Optimum might ask you to prove that you are a human
Gone
- CompareSpeedTest - An unique speed test. Gone, November 2022
- Surewest - An Ookla speedtest. Surewest is acquired in 2012 by Consolidated Communications Inc.