Brian Bradley

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Tiered Cache Smart Topology

Tiered Cache Smart Topology
Tiered Cache Smart Topology

A few years ago, we released Argo to help make the Internet faster and more efficient. Argo observes network conditions and finds the optimal route across the Internet for origin server requests, avoiding congestion along the way.

Tiered Cache is an Argo feature that reduces the number of data centers responsible for requesting assets from the origin. With Tiered Cache active, a request in South Africa won’t go directly to an origin in North America, but, instead, look in a large, nearby data center to see if the data requested is cached there first. The number and location of the data centers used by Tiered Cache is controlled by a piece of configuration called the topology. By default, we use a generic topology for every customer that strikes a balance between cache hit ratios and latency that is suitable for most users.

Today we’re introducing Smart Topology, which maximizes cache hit ratios by building on Argo’s internal infrastructure to identify the single best data center for making requests to the origin.

Standard Cache

The standard method for caching assets is to let each data center be a reverse proxy for the origin server. In this scheme, a miss in any Continue reading