Revisiting HTTP/2

On 8th May 2018 at The Financial Times as part of Andrew Betts (Clearing User Cache) and Hooman Beheshti (Revisiting HTTP/2)

RFC 7540 was ratified over 2 years ago and, today, all major browsers, servers, and CDNs support the next generation of HTTP. Just over a year ago, at Velocity (, we discussed the protocol, looked at some real world implications of its deployment and use, and what realistic expectations we should have from its use.

Now that adoption is ramped up and the protocol is being regularly used on the Internet, it's a good time to revisit the protocol and its deployment. Has it evolved? Have we learned anything? Are all the features providing the benefits we were expecting? What's next?

In this session, we'll review protocol basics and try to answer some of these questions based on real-world use of it. We'll dig into the core features like interaction with TCP, server push, priorities and dependencies, and HPACK. We'll look at these features through the lens of experience and see if good practice patterns have emerged. We'll also review available tools and discuss what protocol enhancements are in the near and not-so-near horizon.

Session video


Hooman Beheshti

Presented by

Hooman Beheshti

Hooman Beheshti is VP of Technology at Fastly

Hooman Beheshti (, is VP of Technology at Fastly, where he develops web performance services for the world's smartest CDN platform. A pioneer in the application acceleration space, Hooman helped design one of the original load balancers while at Radware and has held senior technology positions with Strangeloop Networks and Crescendo Networks. He has worked on the core technologies that make the Internet work faster for nearly 20 years and is an expert and frequent speaker on the subjects of load balancing, application performance, and content delivery networks.


Andrew Betts (Clearing User Cache) and Hooman Beheshti (Revisiting HTTP/2)


8th May 2018

Skill level

Intermediate / Advanced