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