Hello,
Some 3rd party-partners propose us to integrate their services inside ESI technology, leveraging on this new feature from Akamai that would improve performances of loading of those 3rd party scripts.
Apparently, it is not supported by Arc today and as speed is a key success factor for news sites, it would be great that Arc XP supports ESI technology.
Edge Side Includes , it's an application of edge computing (supported by Akamai) that can improve Web perfs. Here a reference from: https://www.akamai.com/blog/news/20-years-of-edge-computing