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. Real Speed (100) Mainstream Tip
  3. Think Broadband (the standalone version) (100) Mainstream
  4. CIRA's Internet Performance Test (99) Mainstream M-Lab
  5. Down at a Glance (99) Mainstream Tip M-Lab
  6. Speedtest (99) Mainstream Pop
  7. Waveform (Bufferbloat and Internet) speed test (99) Mainstream
  8. WhistleOut (99) Mainstream M-Lab
  9. Fireprobe (98) Mainstream
  10. True Speed at a Glance (98) Realistic Tip M-Lab
  11. Google Fiber (97) Mainstream Tip
  12. Meter.net (97) Mainstream
  13. Samknows (original) (97) Mainstream
  14. SG Speed Test (97)
  15. Xfinity Speed Test (97) Mainstream
  16. Cloudflare (96) Pop
  17. TestMy.net (96) Tip
  18. WiFiman (95) Mainstream
  19. Astound (94) Mainstream
  20. Broadband Genie (94)
  21. SpeedSmart (94) Mainstream
  22. nPerf (92) Mainstream
  23. Bredbandskollen (91)
  24. BroadbandNow (89) Cloudflare
  25. Comcast Business Internet Speed Test (88)
  26. Google's Internet speed test (88) M-Lab
  27. Broadband Speed Checker (86)
  28. HighSpeedInternet (86) M-Lab
  29. SpeedOf.me (83) Realistic Pop
  30. myspeed.ai (81)
  31. U Switch (77)
  32. Speedcheck™ (75)
  33. RealSpeeds (60) M-Lab
  34. IPv4 - HTML5 Speedtest (52) LibreSpeed
  35. OpenSpeedTest™ (38)
  36. Bandwidth Place (20) M-Lab
  37. Comparitech (20)
  38. Fast (20) Pop
  39. Gcore (20) LibreSpeed
  40. Internet Speed at a Glance (20) Tip
  41. IPv4 / IPv6 - HTML5 Speedtest (20) LibreSpeed
  42. IPv6 - HTML5 Speedtest (20) LibreSpeed
  43. IPv6 Test (20)
  44. LibreSpeed (20)
  45. MyBroadband (20) Fireprobe
  46. Simple Speed Test Online (20)
  47. Speedtest4.php (20)
  48. Speedtest.co.za (20) Fireprobe
  49. Verizon (20)
  50. Which Broadband Checker (20)