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Google PageSpeed is a family of tools by Google, Inc. [1] designed to help optimize website performance. [2] It was introduced at a Developer Conference in 2010. [3] [4] There are four main components of PageSpeed family tools: PageSpeed Module (consisting of mod PageSpeed [5] for the Apache HTTP Server and NGX PageSpeed [6] for the Nginx) [7 ...
Lighthouse audits performance, accessibility, and search engine optimization factors of web pages, [1] [2] [3] this is the major difference from Google PageSpeed, Lighthouse provides more detail information. It also includes the ability to test progressive web applications for compliance with standards and
A browser speed test is a computer benchmark that scores the performance of a web browser, by measuring the browser's efficiency in completing a predefined list of tasks. In general the testing software is available online, located on a website, where different algorithms are loaded and performed in the browser client.
Google publishes a library, the core-web-vitals library that allows for easy measurement of these metrics in frontend applications. In addition to this, Google also provides the Lighthouse, a Chrome dev-tools component and PageSpeed Insight a site that allows developers to measure and compare the performance of their website with Google's ...
The app returns an integer score out of a possible 555 points. The point total has changed multiple times through the evolution of the software. Leenheer introduced the present scoring system as part of a major redesign of the test introduced in November 2013. [ 6 ]
Google Book search can locate print-published testimony to the importance of a person, event, or concept. It can also be used to replace an unsourced "common knowledge" fact with a print-sourced version of the same fact. [5] Google Groups or other date-stamped media can help establish the timing and context of early references to a word or phrase.
Google Web Designer is a drag-and-drop page builder for Windows, Mac and Linux from Google for creating interactive HTML5 ads and other HTML5 content. [3] It offers a GUI with common design tools, such as a Text tool that integrates with Google Web Fonts , a Shapes tool, a Pen tool, and 3D tools. [ 4 ]
In many situations, the score statistic reduces to another commonly used statistic. [11] In linear regression, the Lagrange multiplier test can be expressed as a function of the F-test. [12] When the data follows a normal distribution, the score statistic is the same as the t statistic. [clarification needed]