When we launched CDN Analytics, the only CDNs that were offering ISPs to embed caches in their networks were limited: Netflix, Akamai, Facebook and Google.
Since then, numerous additional CDNs have released their programs to embed caches and our Service Provider customers have been asking for more of these indicators on the landing page.

With this update, we are adding a whole lot of new CDNs which we can compute offload for, and users can now determine which one they want displayed on the landing page for CDN Analytics.

Embedded CDNs 'A La Carte'

How do we compute offload ?
For the reference, Offload for an embedding CDN is the measurement of how efficient they are at serving content from the last mile out of embedded cache vs how much content they pull from outside of the user's network - which is less cost and performance effective.
A high ratio means a better outcome for the embedding ISP, but is tightly linked to the nature of the CDN: pure-play CDNs only have to store their own content in the ISP's last mile, while Commercial CDNs store content of multiple Content Providers competing for popularity, meaning lower ratios are in this case expected.
The formula we use to compute offload is to look at peak time for each CDN, and compute the ratio of {"Mbps from Embeds to Subscribers" / "Mbps from OnNet + OffNet to Subscribers"}

A new tab appears in the [Configuration] panel for the CDN Analytics screen that surfaces all the Embedding CDNs

• that we detected (via interface classification)
• that our users manually declared (via this same config screen)

and we’re allowing users to selectively enable them on the landing page, see for yourself:

...with a CDN Analytics landing page that now looks like this

Embedding Cache Analytics Guided Mode Dashboard

On each vignette for each Embedding CDN, we’ve added a link to a newly created preset dashboard that presents, as a guided mode dashboard, an in-depth analysis of how the CDN functions in terms of:

• cache fill (internal and external)
• cache offload (on-net and off-net)

This new dashboard replaces the existing one in our Presets section and it's now really comprehensive for users to understand how each embedding CDN behaves when it comes to long-tail and cache-filling, as you can see on the screen grab below: