Page performance

开发者工具插件大小: 46.26KiB版本: v 1.0.1更新时间: 2021-12-21
大小:46.26KiB版本:v 1.0.1更新时间:2021-12-21

Page performance stats, by Puneet Mohan Sangal (

Page performance 的使用方法详解,最全面的教程

Page performance 描述:



扩展大小:46.26 KiB


版本:v 1.0.1

Page performance 插件简介:

这是来自Chrome商店的 Page performance 浏览器插件,您可以在当前页面下载它的最新版本安装文件,并安装在Chrome、Edge等浏览器上。

Page performance插件下载方法/流程:


Page performance插件安装教程/方法:


(2) 从设置->更多工具->扩展程序 打开扩展程序页面,或者地址栏输入 Chrome://extensions/ 按下回车打开扩展程序页面

(3) 打开扩展程序页面的“开发者模式”

(4) 将crx文件拖拽到扩展程序页面,


This extension is a hack that provides a quick analysis, of page performance, on a modern Chrome browser. If multiple tabs are open, the extension automatically provides performance analysis for the page on the active tab. All timings are displayed in ms. The analysis is organized in sections: Value displayed on the icon: Once a page is loaded, the value of the icon changes to first paint time for that page, from the start time, otherwise it displays "perf". W3C Navigation Timings analysis (in order, all times in ms): This section provides analysis, based on navigation timings of the page, of the page lifecycle from start to load. The sum of all the displayed values is the onload time. A bar chart is also shown, that displays the % of time consumed to the total sum. W3C Resource Timings analysis (in order, all times in ms): This section lists the resource timing details of the object, that took the longest time, prior to DomContentLoaded event. The DomContentLoaded indicates when CSSOM is ready, hence this resource lies in the critical path of the page. The name of the resource, displayed, is restricted to last 12 characters of the resource. Render Timings milestones, since navigation start (all times in ms): This section lists important events in the lifecyle of the page, and the time at which the event occurred from the page start. Connection Info: This section lists the protocol, and the origin, of the page. Javascript: This section lists the total external javascript files, referenced in this page, and then specifically those async files that are not on the page origin. This could mean these are potentially 3rd party files, prone to SPOF. Run diagnostic checks: This section enables to conduct further diagnostic checks, using tools like WPT, SPOF-O-Matic, and Page Speed Insights. Credits: Thanks to Ilya Grigorik, Pat Meenan, Daniel Lucks


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