Introduction

What is this report

In our opinion, the combination of HTTP/2 Push, cache digests and some other latency-hiding techniques can reshape the digital services industry by making fast websites more affordable to small players and individuals.

This report pulls together some data that hopefully will inform better the comunity.

Scope

We focus in a typical scenario where the two communication endpoints are a web server and a web browser. For us, cache digests is interesting as a mean to create faster websites from the perspective of end users. In particular, we don’t research the implications of using cache digests for communication between an intermediate proxy and an origin server.

Credits

This report is based on the work by Kazuho Oku and Mark Nottingham on cache digests.

It also includes data collected by Zunzun AB.

This work has been partially financed by the Swedish Internet Fund, a non-profit organization.

Circulation

This work can be distributed under the Creative Commons, Attribution 3.0 Unported license .

Your are free to:

• Share – copy and redistribute the material in any medium or format
• Adapt – remix, transform, and build upon the material

for any purpose, even commercially.

The licensor cannot revoke these freedoms as long as you follow the license terms.

Under the following terms:

• Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
• No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.