Tuesday, March 15th
Choose Your Time Zone9:00am - 11:30am
US Pacific Daylight Time

Location: Online,
from the comfort of your desk.

Includes access to the recorded sessions after the live event.

Strangeloop Networks

For future Velocity Online Conference sponsorship opportunities, please contact Yvonne Romaine at

O'Reilly Velocity Online Conference

Agenda/Schedule | Discounts | Program Chair

Velocity, the web performance and operations conference from O'Reilly Media, is the premier technical event dedicated to optimizing every aspect of your company's website. It's the convergence of performance and site reliability experts and innovators who share the information critical to building and scaling fast and reliable websites and services. Velocity online and in-person conferences give you the most current tools and case studies to meet the demands of this ever-changing landscape.

At this half-day Velocity Online Conference, you'll have the opportunity to hear from experts, share your ideas, ask questions, and join in a conversation with panelists and other participants, all looking to build a solid and profitable future for web performance technologies.

Learn more about the in-person edition of Velocity, happening June 14-16, 2011 in Santa Clara, CA.


Web Standards to Measure Real-world Performance (30 min) Speakers: Anderson Quach, Microsoft IE and Tony Gentilcore, Tony Gentilcore

In the summer of 2010, Microsoft and Google announced the formation of the Web Performance Working Group. Since then, we’ve been hard at work developing interoperable interfaces to measure web application performance. In this session, we’ll discuss the problems we’re solving, the challenges we’re facing, what we’ve done and where we’re going.

Above the Fold Time: Measuring Web Page Performance Visually (30 min) Speaker: Jake Brutlag, Google

Above the fold time (AFT) measures web page performance by applying heuristics to a video or filmstrip view of a page loading. It focuses on what the user sees while at the same time producing consistent results across multiple runs and different browsers. This presentation will cover (1) the motivation for AFT, (2) overview the algorithm, and (3) how to collect AFT on

Introducing Next-gen YSlow (30 min) Speakers: Betty Tso, Yahoo! and Marcel Duran, Yahoo!

In addition to existing Firefox/Firebug add-on, YSlow will be available for many browsers – Chrome, IE, Safari, Opera, as well as Mobile browsers and command-line. Please come join us to explore behind-the-scene techniques used to make this “universal” performance measurement tool possible, also find out how you can get involved in next-gen YSlow. There will be a quick sneak peak of upcoming features!

Visibility into Mobile Performance (30 min) Speaker: Steve Souders, Google

The first step in improving performance is measuring performance. The last few years have witnessed the birth of numerous performance tools including Firebug, YSlow, Page Speed, HttpWatch, Speed Tracer, dynaTrace, WebPagetest, Web Inspector, and Chrome Dev Tools. But none of these tools measure mobile performance. Although the offering for mobile performance tools is small, some do exist. Join Steve Souders as he shows what's available today for gaining visibility into mobile performance.

Program subject to refinement. All talks are 30 minutes (including 10 minutes of Q&A), with a 15 minute break at US-PDT: 10:10am (US-EDT: 1:00pm).


All Velocity in-person Conference alumni will receive an email containing a 40% discount code for the Velocity Online Conference, happening March 15, 2011. If you do not receive your email invitation to the Velocity Online Conference with the discount code by February 21, 2011, please send a message to

Note: All Velocity Online Conference participants will receive a 25% discount to the next Velocity Conference, happening June 14-16, 2011 in Santa Clara, CA.

Sponsorship Opportunities

To sponsor a future Velocity Online Conference and for general sponsorship information, contact Yvonne Romaine at

Velocity Online Program Chair

Steve SoudersSteve Souders works at Google on web performance and open source initiatives. His books High Performance Web Sites and Even Faster Web Sites explain his best practices for performance along with the research and real-world results behind them. Steve is the creator of YSlow, Cuzillion, and SpriteMe. He is co-chair of Velocity and co-founder of the Firebug Working Group. He taught CS193H High Performance Web Sites at Stanford, and frequently speaks at conferences including OSCON, The Ajax Experience, SXSW, and Web 2.0 Expo.

Questions? Please send an email to