Empirical Results from Page Speed and mod_pagespeed

Web Performance
Location: Hall 1 A Level:
Average rating: ****.
(4.00, 11 ratings)

Page Speed Analysis tools provide performance metrics for web-sites, and mod_pagespeed and Page Speed Service automatically rewrite web sites by applying web performance “best practices”. But exactly what is the impact on web site latency and usability from implementing these transformations? We’ll share what we’ve learned from running Page Speed and mod_pagespeed in the field.

What is the impact of specific web performance optimizations on metrics like page load time and time to first paint? What is the interaction between latency, page structure, and network-level decisions such as when to flush web pages so that browsers can start rendering? In this talk, we’ll present our latest findings and show developers how to apply these findings to their own web sites.

We’ll conclude with a discussion of new features being added to Page Speed analysis & rewriting tools to translate these learnings into a faster web.

Photo of Matthew Steele

Matthew Steele


Matthew is a software engineer at Google, working on Page Speed.

Andrew Oates


Andrew Oates is a Software Engineer on the Page Speed Team in Google’s Cambridge, Massachusetts office. You can find him in the credits for the Pixar film Up.

Photo of Joshua Marantz

Joshua Marantz


Joshua Marantz is a software engineer at Google, where he is tech-lead of mod_pagespeed, a project to build an open-source Apache module for automatically improving website latency and reducing bandwidth consumption by rewriting HTML, CSS, Javascript, and Images. At Google he has also worked on latency improvements in web caching infrastructure and scalable social networking. Prior to Google, Josh spent 20 years in the Electronic Design Automation industry, much of it working on accelerated functional simulation. He holds BS and MS degrees from MIT, in Computer Science and Engineering, and Electrical Engineering and Computer Science.



  • ip-label
  • Compuware Corporation
  • dynaTrace
  • Keynote Systems
  • New Relic
  • Citrix Systems
  • Google
  • Apica
  • AppDynamics
  • CDNetworks
  • Cotendo
  • Dyn Inc.
  • ImmobilienScout24
  • Spil Games
  • Dyn Inc.

For information on exhibition and sponsorship opportunities at the conference, contact Gloria Lombardo at glombardo@oreilly.com

View a list of Velocity Europe contacts