Using WebPageTest: Web Performance Testing for Novices and Power Users

Using WebPageTest: Web Performance Testing for Novices and Power Users
By Rick Viscomi, Andy Davies, Marcel Duran

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Product Description

Learn basic and advanced uses of WebPagetest, the performance measurement tool for optimizing websites. This practical guide shows users new to this tool how run tests and interpret results, and helps experienced users gain a better and more thorough understanding of hidden features in WebPagetest that make testing easier.

Written by WebPagetest power users and performance experts, this book will help web developers and frontend engineers solve the problem of slow sites. Topics include:

  • Basic test setup—shows beginners how to get meaningful results
  • Advanced test setup—provides another level of technical depth by explaining features not thoroughly documented at webpagetest.org
  • Analysis of results—helps you understand of how to interpret test results
  • Private instance setup—teaches power users the intricacies of the webpagetest private instance and how it works
  • API and external tools—provides a detailed reference for the API and demonstrates tools already using the API to extend WebPagetest


Product Details

  • Amazon Sales Rank: #538940 in Books
  • Brand: O Reilly Media
  • Published on: 2015-10-30
  • Original language: English
  • Number of items: 1
  • Dimensions: 9.10" h x .40" w x 7.10" l, .0 pounds
  • Binding: Paperback
  • 214 pages

Features

  • O Reilly Media

Editorial Reviews

About the Author

Rick Viscomi is a frontend engineer and web performance evangelist. He has leveraged the power of WebPageTest to help speed up the websites of the Travel Channel, Food Network, and HGTV. Since 2013, he has worked at Google to make YouTube fast.

Andy Davies first stumbled into web performance in late '90s when he was trying to deliver e-learning over dial-up connection speeds and has been hooked ever since.

He's currently Associate Director for Web Performance at NCC Group, where he helps clients to measure, and improve the performance of their web sites.

Andy regularly speaks about web performance and occasionally contributes to open source projects such as WebPagetest, he also wrote 'A Pocket Guide to Web Performance" for Five Simple Steps

Marcel Duran is a web performance engineer at Google. He previously worked to speed up high traffic websites for Twitter and Yahoo! He was also the Front End Lead for Yahoo!’s Exceptional Performance Team where he open sourced YSlow. Marcel also spoke at the Velocity Conference and co-authored Web Performance Daybook Volume 2 (O'Reilly).


Customer Reviews

Most helpful customer reviews

4 of 4 people found the following review helpful.
5Quick and rewarding guide to getting the most out of WebPageTest.
By Ilya Grigorik
WebPageTest is an indispensable tool in every performance engineer's toolkit. If you're an existing user, this book will fill in and explain important gaps. If you're just getting into the performance field, this book will give you a fast head start on the rest of us, who had to learn it through trial and error.

The book is split into three high-level sections:

Basic Use Cases: offers a walkthrough of the waterfall, connection view, and the metrics that WPT results provide. Think of it as web performance 101: what metrics you should look for and where, how to interpret them, and how to compare tests. In short, a good intro for someone new to the field, and a quick skim for those familiar with the topic.

Intermediate Use Cases: a more accurate description would be "test setup". This is a great section that covers the many decisions you have to make to ensure that you're measuring the right things: picking the browser, location to run the test from, picking the right network profile, scripting multi-visit flows, testing authenticated pages, and more. Too many folks overlook all this, which leads them to focus on optimizing the wrong bottlenecks -- don't make this mistake! This section provides a nice hands-on look for how to use your existing analytics data to set all the parameters.

Advanced Use Cases: a hands-on look at driving WPT through API (e.g. monitoring performance changes over time), integrating it with your build infrastructure (e.g. to detect performance regressions at commit time, before they reach production), and setting up your own private instances (e.g. to test pages that can't or shouldn't be reached by public agents). The instructions are simple and easy to follow; you'll be up and running in no time.

In summary, a quick and rewarding read. A perfect book for someone new to the field, and a helpful resource for the rest of us. I wish I had this book when I started, it would have saved me a lot of time!

0 of 0 people found the following review helpful.
4A very good book but I was looking for some particular advice ...
By Olga Fischer
A very good book but I was looking for some particular advice how to optimize IIS settings. They do not cover it in the book. Otherwise it is a very good book.

See all 2 customer reviews...

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