Training: June 20–21, 2016
Tutorials: June 21, 2016
Keynotes & Sessions: June 22–23, 2016
Santa Clara, CA

The top 10 performance defects that are costing you millions

Buddy Brewer (SOASTA), Billy Hoffman (Rigor)
11:20am–12:00pm Wednesday, 06/22/2016
Location: Ballroom F Level: Intermediate
Average rating: ****.
(4.67, 3 ratings)

Prerequisite knowledge

Attendees should have a basic understanding of web page content and development.


There are literally hundreds of issues that could be slowing down your pages. How do you figure out (and fix) the ones that are hurting your business most?

Buddy Brewer and Billy Hoffman outline a step-by-step process that helps you answer this question. Using data from IR200 retail sites, Buddy and Billy walk attendees through their methodology:

  1. Gather historical user data via RUM
  2. Correlate load times with conversions
  3. Use predictive analytics to compute lost revenue
  4. Apply conversion impact scoring to determine which page groups are most affected by performance changes
  5. Run performance diagnostics on every page in these page groups to sniff out all performance rule violations
  6. Distill those violations down to the top 10 performance defects

No doubt you’ve encountered scores of lists outlining the top performance issues faced by sites. Unlike those lists, this list is grounded in a study of revenue/business impact. Using this approach, you can focus on fixing the performance defects that are hurting you most on the pages that matter the most.

This session is sponsored by SOASTA.

Photo of Buddy Brewer

Buddy Brewer


Buddy Brewer is the senior VP of products at SOASTA, where he leads strategic initiatives for all SOASTA products, including DOC, CloudTest, TouchTest, Data Science Work Bench, and mPulse, a real-user measurement tool that tells you how long people are waiting on your site and how it is impacting their behavior. Buddy has been helping some of the largest sites on the Web solve their performance challenges since 2001. Prior to SOASTA, Buddy cofounded LogNormal, the first company to put measuring real users first in the crowded space of performance monitoring tools. LogNormal was acquired by SOASTA in 2012.

Photo of Billy Hoffman

Billy Hoffman


Billy Hoffman is the CTO at Rigor, where he focuses on delivering best-in-class performance software. From hacking into sites as a penetration tester to optimizing performance for the Fortune 500, Billy has over a decade of deep technical experience into the inner workings of complex web applications. Billy was the lead researcher at the web security software company SPI Dynamics, where he developed and automated new techniques to exploit web vulnerabilities and spoke extensively at conferences such as Black Hat and RSA about his findings. Following SPI’s acquisition by Hewlett-Packard, Billy managed HP’s web security research group. Billy founded the web performance company Zoompf, where he developed the industry’s first site-wide performance analysis product that tells you the root cause of your performance issues. He has spoken at industry conferences such as Velocity and was a contributing author for O’Reilly’s Web Performance Daybook. Billy holds a BS in computer science from the Georgia Institute of Technology. Outside of work, Billy enjoys refinishing rooms in his house and spending time with his wife, Jill, and their three children.

Comments on this page are now closed.


Atoosa Rezai
07/20/2016 8:01am PDT

Could you please post your presentation?