Accurate speed tests

This is an overview of accurate speed tests. That is, the speed tests are displayed on the descending accuracy score as determined by the standardized speed test. The accuracy score is listed in brackets after the speed test.

Note that which speed test is most accurate depends on the speed test you measure. For this list we tested with an advertised speed of 100 Mbps.

  1. M-Lab (100) Mainstream Tip
  2. Ookla Speedtest (100) Mainstream Pop
  3. RealSpeed (100) Mainstream Tip
  4. Think Broadband (the standalone version) (100) Mainstream
  5. Down at a Glance (99) Mainstream Tip M-Lab
  6. Waveform (Bufferbloat and Internet) speed test (99) Mainstream
  7. Fireprobe (98) Mainstream
  8. True Speed at a Glance (98) Realistic Tip M-Lab
  9. Google Fiber (97) Mainstream Tip
  10. Meter.net (97) Mainstream
  11. Samknows (original) (97) Mainstream
  12. SG Speed Test (97)
  13. Xfinity Speed Test (97) Mainstream
  14. Cloudflare (96) Pop
  15. TestMy.net (96) Tip
  16. WiFiman (95) Mainstream
  17. Astound (94) Mainstream
  18. Broadband Genie (94)
  19. SpeedSmart (94) Mainstream
  20. nPerf (92) Mainstream
  21. Bredbandskollen (91)
  22. Comcast Business Internet Speed Test (88)
  23. Google's Internet speed test (88) M-Lab
  24. Broadband Speed Checker (86)
  25. HighSpeedInternet (86) M-Lab
  26. SpeedOf.me (83) Realistic Pop
  27. SpeedOf.me API sample page (81) Realistic
  28. myspeed.ai (81)
  29. U Switch (77)
  30. Speedcheck™ (75)
  31. IPv4 - HTML5 Speedtest (52) LibreSpeed
  32. OpenSpeedTest™ (38)
  33. Bandwidth Place (20) M-Lab
  34. Comparitech (20)
  35. Fast (20) Pop
  36. Gcore (20) LibreSpeed
  37. Internet Speed at a Glance (20) Tip
  38. IPv4 / IPv6 - HTML5 Speedtest (20) LibreSpeed
  39. IPv6 - HTML5 Speedtest (20) LibreSpeed
  40. IPv6 Test (20)
  41. LibreSpeed (20)
  42. MyBroadband (20) Fireprobe
  43. Speedtest4.php (20)
  44. Speedtest.co.za (20) Fireprobe
  45. Toast (20)
  46. Verizon (20)
  47. Which Broadband Checker (20)