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CDN Usage Test

What is it?

Check if your webpage's resources (images, javascript and css files) are served via CDNs.

Pass rate:

  • Top 100 websites: 97%
  • All websites: 36%
Pass rates of Top 100 US websites
2021

96%

2022

96%

2023

97%

100

75

50

25

0

How do I fix it ?

In order to pass this test you are advised to use a CDN service. A Content Delivery Network (CDN) is a globally distributed network of web servers that allows a quick transfer of assets and provides high availability and high performance. The primary benefits of using a CDN service are:
  • Improving website loading times
  • Reducing bandwidth costs
  • Increasing content availability and redundancy
  • Improving website security
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