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Most Reliable CDN Rankings

Ranked by real uptime to surface providers with more stable long-term availability.

  1. 1

    IO River

    3,724 Samples

    99.83%

    Overall Score 97

  2. 2

    ChinaCache

    6,029 Samples

    99.81%

    Overall Score 96

  3. 3

    Microsoft Azure CDN

    4,847 Samples

    99.8%

    Overall Score 96

  4. 4

    CDN07

    5,847 Samples

    99.79%

    Overall Score 96

  5. 5

    Sucuri

    5,211 Samples

    99.78%

    Overall Score 96

  6. 6

    UCloud CDN

    1,694 Samples

    99.78%

    Overall Score 96

  7. 7

    NTT Communications

    4,597 Samples

    99.78%

    Overall Score 96

  8. 8

    imgix

    5,425 Samples

    99.78%

    Overall Score 96

  9. 9

    Leaseweb

    3,730 Samples

    99.78%

    Overall Score 96

  10. 10

    BelugaCDN

    1,015 Samples

    99.78%

    Overall Score 96

  11. 11

    Cloudflare

    5,510 Samples

    99.77%

    Overall Score 96

  12. 12

    Myra Security

    6,611 Samples

    99.77%

    Overall Score 96

  13. 13

    IDCF CDN

    5,507 Samples

    99.77%

    Overall Score 96

  14. 14

    Radware

    2,175 Samples

    99.77%

    Overall Score 95

  15. 15

    Imperva (Incapsula)

    918 Samples

    99.77%

    Overall Score 95

  16. 16

    BizFly Cloud

    4,514 Samples

    99.76%

    Overall Score 95

  17. 17

    Cirion

    3,591 Samples

    99.76%

    Overall Score 95

  18. 18

    CriticalCase

    6,069 Samples

    99.76%

    Overall Score 95

  19. 19

    EdgeUno

    5,565 Samples

    99.76%

    Overall Score 95

  20. 20

    Telkom Indonesia

    6,709 Samples

    99.76%

    Overall Score 95

  21. 21

    Telefonica

    4,522 Samples

    99.76%

    Overall Score 95

  22. 22

    CDNvideo

    1,342 Samples

    99.75%

    Overall Score 95

  23. 23

    F5 Networks

    3,911 Samples

    99.75%

    Overall Score 95

  24. 24

    Huawei Cloud CDN

    1,806 Samples

    99.75%

    Overall Score 95

  25. 25

    Medianova

    3,862 Samples

    99.75%

    Overall Score 95

  26. 26

    Baidu Cloud CDN

    3,693 Samples

    99.74%

    Overall Score 95

  27. 27

    CDN5

    4,183 Samples

    99.74%

    Overall Score 95

  28. 28

    Ecritel CDN

    3,795 Samples

    99.74%

    Overall Score 95

  29. 29

    VNG Cloud

    5,781 Samples

    99.74%

    Overall Score 95

  30. 30

    Amazon CloudFront

    1,861 Samples

    99.74%

    Overall Score 95

  31. 31

    Volcano Engine CDN

    5,623 Samples

    99.74%

    Overall Score 95

  32. 32

    BlazingCDN

    3,576 Samples

    99.73%

    Overall Score 95

  33. 33

    MetaCDN

    5,141 Samples

    99.73%

    Overall Score 95

  34. 34

    Tata Communications

    929 Samples

    99.72%

    Overall Score 95

  35. 35

    Quantil

    4,309 Samples

    99.72%

    Overall Score 95

  36. 36

    Bunny.net

    5,761 Samples

    99.72%

    Overall Score 95

  37. 37

    CDNsun

    4,416 Samples

    99.72%

    Overall Score 95

  38. 38

    Zenlayer CDN

    2,868 Samples

    99.72%

    Overall Score 95

  39. 39

    Afranet CDN

    1,313 Samples

    99.72%

    Overall Score 95

  40. 40

    Naver Cloud

    4,338 Samples

    99.72%

    Overall Score 95

  41. 41

    ImageKit

    6,484 Samples

    99.72%

    Overall Score 95

  42. 42

    OnApp

    4,190 Samples

    99.72%

    Overall Score 95

  43. 43

    Transparent Edge

    956 Samples

    99.72%

    Overall Score 95

  44. 44

    Gumlet

    3,243 Samples

    99.71%

    Overall Score 94

  45. 45

    Fastly

    4,552 Samples

    99.71%

    Overall Score 94

  46. 46

    Tencent Cloud CDN

    5,787 Samples

    99.71%

    Overall Score 94

  47. 47

    CDN.net

    2,541 Samples

    99.71%

    Overall Score 94

  48. 48

    KT Cloud

    1,394 Samples

    99.71%

    Overall Score 94

  49. 49

    Derak Cloud CDN

    2,196 Samples

    99.71%

    Overall Score 94

  50. 50

    Selectel

    2,635 Samples

    99.71%

    Overall Score 94

  51. 51

    Yewsafe

    3,783 Samples

    99.7%

    Overall Score 94

  52. 52

    BaishanCloud

    3,367 Samples

    99.7%

    Overall Score 94

  53. 53

    CDNetworks

    1,428 Samples

    99.69%

    Overall Score 94

  54. 54

    Alibaba Cloud CDN

    3,348 Samples

    99.69%

    Overall Score 94

  55. 55

    Deutsche Telekom (T-Systems)

    1,586 Samples

    99.69%

    Overall Score 94

  56. 56

    Verizon Business

    5,307 Samples

    99.69%

    Overall Score 94

  57. 57

    CacheFly

    1,408 Samples

    99.69%

    Overall Score 94

  58. 58

    Akamai

    868 Samples

    99.68%

    Overall Score 94

  59. 59

    Kingsoft Cloud CDN

    6,820 Samples

    99.68%

    Overall Score 94

  60. 60

    Azion CDN

    2,574 Samples

    99.68%

    Overall Score 94

  61. 61

    Google Cloud CDN

    1,542 Samples

    99.64%

    Overall Score 93

228,327 SamplesUpdated 10/8/2026, 00:00:19
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