The purpose of this eBook is to help you understand PageSpeed Insights tool and how to use PageSpeed as part of a holistic approach to improving your website's performance as well as the user experience. Here are the points that are covered in this article:

• What is PageSpeed Insights? ?
• How to interpret PageSpeed results as part of your web performance strategy?
• Comment faire face à 10 optimisations de How to approach 10 performance optimizations that can improve your PageSpeed and help you deliver a better user experience?.

What is PageSpeed Insights?

PageSpeed Insights is a free tool from Google that measures the performance of a website. It evaluates performance on desktops and mobile devices based on 15 elements related to the speed and usability of a site. PageSpeed Insights assigns a score to a site and also offers recommendations on how a site designer or owner could improve it to maximize sales and achieve a higher score.

If you've never used PageSpeed Insights before, now is a great time to try it out!

To get started:

1. Go to https://developers.google.com/speed/pagespeed/insights/.
2. Enter any website URL in the "Enter a web page URL" field.
3. Click on the "Analyze" button.
4. View the scores and results on Mobile and Desktop.

Reviewing PageSpeed Results

When you review your PageSpeed Insights results, you will see a few things:

• Ability to easily switch between mobile and desktop results;
• Scores for speed and user experience.

Experience: scores are out of 100, where 85 and above is excellent.

PageSpeed Insights

PageSpeed Insights

A detailed guide to Google's PageSpeed

Why is the PageSpeed score important? Surprisingly, the PageSpeed score is not a good indicator of browsing speed. If you care about speed, the rendering and load time metrics of proactive monitoring tools are more important.

PageSpeed score has become popular because of SEO and how it affects search results. Google has stated that it uses performance as a factor in search rankings. In addition, PageSpeed can offer valuable recommendations that your team can apply to improve speed. But ultimately, it's up to you to determine if it's worth implementing PageSpeed's recommendations. Is it cost-effective for your team? Are there any potential benefits other than improving your PageSpeed score? In the next section of this article, we'll go over all the rules and recommendations from PageSpeed Insights.

Enable compression

To learn how to enable compression on your web server, read this section or start with a sample configuration file. Sometimes compression is available in the settings or when upgrading to a server.

When enabling compression, consider the following:

• Comment votre serveur Web est-il configuré pour mapper les types MIME au contenu ou au fichier?
• How is your web server configured to compress content against these Mimes?

Files and extensions

• How are the file names and extensions in your application structured?
• How does your application change or override the Mime protocol of a response?
• Which third-party libraries use Mime protocols?

Make sure your configuration files are properly implemented across your host network. Next, make sure compression is enabled. In your browser's management tools, you can search for the header.

Next steps

When minimizing your files, your main goal is to remove redundant or unnecessary files.

• Comments :
While comments are useful for a designer, they are not necessary for the browser. Delete all comments.
• Spaces (spaces, tabs and line breaks) :
Spaces are also useful for the designer, but the browser does not need them. Remove all unnecessary spaces, tabs and line breaks.