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
1Ethan Marcotte, A List Apart. http://alistapart.com/article/responsive-web-design 2Natasha Lomas, Tech Crunch. http://techcrunch.com/2014/02/13/smartphones-outsell-dumb-phones-globally/ 35 Percentage of traffic from mobile devices 30 ...
AOL Pagetest and its web-based counterpart, WebPagetest, analyze web pages using these best practices: • Enable browser caching of static assets • Use one CDN for all static assets • Combine static CSS and JavaScript files • Gzip-encode ...
WebPage Test CLI commands to install , run test cases , and view results // Step 1 : Install using npm npm install ... --label " Using WebPageTest " --timeline // Step 3 : Read test results from the report ID generated by the above ...
You could use R's native apply() function instead of looping through the data in the createDataFrameByURL() function. ... This chapter explored an automated way to track the web performance of a set of URLs using WebPagetest, PHP, ...
Using. WebPageTest. to. benchmark. performance. WebPageTest (https://webpagetest.org/) is a free tool you can use to give you web performance details. It works much like developer tools ...
Then, using WebPageTest with an emerging markets 3G connection on an Android device, subsequent page visits (using the cached app shell) resulted in about a 54% average reduction in the first page view. You can see the results at ...
In this practical book, Lara Hogan helps you approach projects with page speed in mind, showing you how to test and benchmark which design choices are most critical.
It is correlated with the fact, that developers do not have these devices during the development process for ... The most important performance features discovered using WebPageTest before and after optimization are presented in Fig. 4.
USA tests were carried out using WebPagetest's own infrastructure while all the rest were carried out from infrastructure provided by Akamai through EC2 in order to achieve maximum conformity. The metrics taken into consideration were: ...
In: Proceedings of the 13th International Conference on Web Information Systems and Technologies (WEBIST 2017), pp. ... P.: Speed Index (2012). https://sites.google.com/a/webpagetest.org/ docs/using-webpagetest/metrics/speed-index.