What Is Google Lighthouse and How to Use It?

by | Jan 4, 2022 | Etcetera | 0 comments

As a web site proprietor, maximizing your website’s Search Engine Optimization (SEO), accessibility, and function is of maximum significance. On the other hand, to take on those components as successfully as conceivable, it’s the most important to undertake the appropriate equipment and methods. Probably the most leading edge answers you’ll these days leverage is Google Lighthouse.

On this publish, we’ll introduce you to Google Lighthouse and the way it works. Then we’ll give an explanation for how you’ll use it to make stronger your website.

Let’s leap in!

What Is Google Lighthouse?

Google Lighthouse is a free, open-source tool that allow you to make stronger your web site’s pace, efficiency, and total enjoy. Producing Lighthouse studies makes it more straightforward to toughen the standard of your internet pages.

There are a couple of other ways you’ll use the software. You’ll be able to run it by way of:

  • Chrome DevTools
  • A Chrome extension
  • A Node module
  • A internet Person Interface (UI)

While you put up a URL to the automatic software, it’s going to execute a couple of web page audits and create a document detailing how the web page plays. You’ll be able to then use tips from the consequences to make stronger your web site.

Lighthouse isn’t just for builders. The software is acceptable for any website proprietor enthusiastic about finding out extra about their web site’s efficiency and urban steps to optimize it.

How Lighthouse Audits Pages

The primary focal point of Lighthouse audits is Google’s Core Web Vitals. In case you’re unfamiliar, those are the very important metrics Google makes use of to measure internet pages’ pace and total Person Revel in (UX). They include Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS).

In different phrases, the use of Lighthouse is helping you notice your web site the similar method that Google does. You’ll be able to use the actionable insights it delivers to optimize your pages for higher seek engine score effects.

The Lighthouse studies consist of 5 classes:

  • Efficiency
  • Accessibility
  • search engine optimization
  • Perfect practices
  • Revolutionary internet app
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It additionally makes use of a 1 to 100 scoring device and assessments websites in opposition to a simulated 3G connection. On the other hand, the ratings would possibly range through the years as a result of Google frequently updates its score standards. Subsequently, you’ll most likely need to keep on most sensible of any Lighthouse updates.

Moreover, whilst moderately very similar to PageSpeed Insights, Lighthouse isn’t the similar. Lighthouse gives a extra holistic image than simply web page efficiency (like PageSpeed Insights does).

How one can Use Google Lighthouse

As we discussed, you’ll use a handful of workflows for Lighthouse. In case you don’t need to set up an extension or run instructions, you’ll make the most of internet.dev or DevTools. Under, we’ll take you thru step by step directions for each and every choice.

How one can Run Google Lighthouse With Chrome DevTools

To get began, you’ll first wish to download Google Chrome (if you happen to haven’t already). As soon as put in, you’ll open a brand new browser tab in Chrome and navigate to the internet web page you need to audit.

Subsequent, right-click at the web page and choose Check up on. You’ll be able to additionally click on at the 3 vertical dots within the most sensible appropriate nook of the browser, then navigate to Extra equipment > Developer equipment.

This may occasionally open the DevTools panel to the appropriate or most sensible of the web page. From the toolbar, (1) click on on Lighthouse:

The Google Lighthouse option in Chrome DevTools.

Be aware that if you happen to don’t see the Lighthouse choice within the toolbar, you might wish to click on at the two arrows on the finish. As soon as the Lighthouse software opens, ensure that all 5 classes are decided on, then (2) make a choice Generate document.

As soon as Lighthouse finishes working the audit, it’s going to deliver you to the consequences display screen. That document will glance one thing like this:

A Lighthouse report.

You’ll discover a rating and segment for each and every class. You’ll be able to be informed extra about each and every by way of clicking at the ratings on the most sensible of the web page.

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A just right rating is regarded as the rest between 50 and 89. A very good rating is between 90 and 100. The purpose is to attain someplace within the 90 and 100 vary for each and every class.

How one can Use Google Lighthouse With internet.dev

Some other fast and simple technique to audit a internet web page with Lighthouse is the use of web.dev. Navigate to this web page, then input the web page URL you need to audit:

The web.dev website.

Subsequent, click on at the Run Audit button. After a minute or two, Lighthouse will end inspecting the website and convey you to the document. Right here you’ll be informed extra about your rating and alternatives for growth in each and every class:

The opportunities section of a Google Lighthouse audit report.

You’ll be able to click on on each and every collapsed segment to extend it and be informed extra. You’ll be able to additionally get admission to detailed details about each and every class by way of settling on the class title and rating on the most sensible of the document.

How one can Use Google Lighthouse With a Chrome Extension

Then again, you’ll obtain and set up the Chrome Extension for Lighthouse. This can be a cast selection if you happen to plan on the use of Lighthouse ceaselessly.

As soon as once more, you’ll wish to have the Chrome browser put in. Subsequent, you’ll navigate to the Chome Internet Retailer and install the Lighthouse extension:

The Google Lighthouse Chrome extension.

After the add-on has been put in, restart your browser. You must now see a lighthouse image on the finish of your deal with bar. Seek advice from the internet web page you need to audit, click on at the lighthouse image, then choose Generate document:

Accessing Google Lighthouse via Chrome.

This motion will deliver you immediately to the document web page, the place you’ll view the grading main points of each and every class. Be aware that it should take a minute or two for the audit to finish.

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How one can Use Google Lighthouse by way of Node

In case you’re searching for configuration flexibility with Lighthouse, you’ll additionally use a Node module. This can be a extra complex resolution, however it supplies better keep an eye on.

First, you’ll wish to set up a Long Term support version of Node:

The Node website.

Subsequent, you’ll run the command line to put in Lighthouse:

npm set up -g lighthouse
# or use yarn:
# yarn international upload lighthouse

In spite of everything, you’ll carry out the audit by way of the use of the next command:

lighthouse <url>

After all, you’ll need to substitute the <url> with the internet deal with of the internet web page you’re seeking to audit. You’ll be able to seek advice from GitHub to learn more about the source code.


Ceaselessly auditing your WordPress web site is very important for offering a just right enjoy for guests and search engines like google and yahoo alike. Because of equipment akin to Google Lighthouse, you’ll briefly assess your website’s efficiency, search engine optimization, and accessibility in a couple of easy steps.

As we mentioned on this publish, Lighthouse is a loose, automatic software for gaining precious insights into your internet pages’ efficiency and total enjoy. You’ll be able to use it by way of putting in a Chrome extension or the use of DevTools immediately inside your browser. Then you’ll make the most of the studies to discover ways to make stronger your website.

Do you will have any questions on the use of Google Lighthouse? Tell us within the feedback segment under!

Featured Symbol by way of Cienpies Design/shutterstock.com

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