lighthouse:tldr:6c15a

lighthouse: Generate a report for specific categories only.

lighthouse

$ lighthouse --only-categories=${performance,accessibility,best-practices,seo,pwa} ${https:--example-com}

try on your machine

The command you provided is an example of how to use the Lighthouse tool's command-line interface (CLI) with certain options.

Lighthouse is an open-source automated tool created by Google that helps assess the quality and performance of web pages. It performs various audits on a given web page and provides insightful feedback and suggestions to improve the page.

Now, let's break down the command you shared:

lighthouse: This is the main command used to execute Lighthouse.
--only-categories=${performance,accessibility,best-practices,seo,pwa}: This option specifies the categories of audits to run. In this case, it indicates that only the audits related to performance, accessibility, best practices, SEO (Search Engine Optimization), and PWA (Progressive Web App) will be executed.
${https:--example-com}: This part represents the URL of the web page that you want to test. In this example, the URL provided is "https://example.com". The placeholder syntax ${...} is often used in command-line interfaces to set variables or values.

So, when you run this command in your command-line interface, it will execute Lighthouse, run the specified audits related to performance, accessibility, best practices, SEO, and PWA, and generate a report for the web page located at "https://example.com".

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

back to the lighthouse tool