[Xylakant]

The CDN makes the site load faster by caching the content on edge nodes close to the client. It’s not for taking load off the origin, but purely for network latency.

[toredash]

And by caching it you will reduce traffic to origin.

[Xylakant]

Certainly, but for static pages the traffic to the origin is not a primary concern except for really large amounts of traffic.