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KB No. 2567: Definition of the category "CDN and Undefined"

KB OLFEO On-Premise
November 26, 2023

Definition and use of the category "CDN and Undefined."

The CDN and Undefined category contains all content delivery network (CDN) servers that make content or data (usually large multimedia content) available to users without this data being directly accessible. The main purpose of CDNs is to reduce costs and access times. The CDN acts as a proxy to improve resource availability (performance but also better resistance to failures).

There are several types of CDNs:

  • caching CDNs for downloading, including those supporting dynamic website content
  • media streaming CDNs, including those supporting live audiovisual streams.

Key players in the CDN field

  • Akamai Technologies
  • Amazon CloudFront
  • AT&T
  • CloudFlare
  • Level 3 Communications
  • OVH
  • CDNetworks
  • EdgeCast Networks
  • MetaCDN

CDN filtering recommendations

The servers registered in the Olfeo database are all servers that store static content. No content hosted on these servers is directly accessible. There is therefore no risk in authorizing the IP addresses of these servers.

We suggest leaving access to the CDN and Undefined categories open: this will allow for optimal display of all internet browsing, with the server content remaining inaccessible to the user.

Please do not hesitate to contact us for any further information: classification@olfeo.com.