How to do Website Performance Testing from EVERY ANGLE | Website Performance Analysis

Learn how to do website performance testing and website performance analysis to improve website speed. How to check performance of a website? Not just the performance, how to monitor website speed? What is good performance score for a website?

Where should we check website performance score? Website performance testing is an essential part of ensuring a smooth user experience on your web application. To conduct a comprehensive website performance analysis, you need to use tools that assess the site from every angle. Google PageSpeed Insights and Lighthouse are two excellent resources to get started.

You can use PageSpeed Insights to understand how to optimize your website's speed and performance. It provides an analysis of how well your site performs on both mobile and desktop devices and offers suggestions for improvement. Furthermore, understanding how to use Lighthouse can significantly aid your performance optimization process. It delivers robust insights into opportunities for enhancement by testing your website's performance, accessibility, and other vital web vitals.

By regularly conducting web page performance testing and using these insights for optimization, you can significantly improve your site's speed, performance, and overall user experience. Remember, efficient website performance testing and speed optimization is pivotal for maintaining high user engagement and satisfaction.

Website with above 90 performance score, generally is considered well optimized for page speed and SEO. Search engines will love to index such site. Professionally, there are certain tools that are used to check website performance. Quality assurance teams use these tools. Also clients rely on these free tools.

Lighthouse (in Chrome Dev Tools)

First one is lighthouse. How to use Lighthouse? It is integrated in Chrome web browser. Open dev tools, go to Lighthouse tab. Great option to check website performance locally. Select Mobile or Desktop device, select categories for test. There are performance , accessibility , best practices , SEO and progressive web App metrics to check. After selection, analyze page load .

It is generally recommended to perform this test in incognito mode. Because Chrome extensions can affect the report.

Report will provide you test score in each category. Not just the score. It will point out areas to fix and it will give you recommendations. Click at category that has less score. And you see these area that need to be fixed.

Below that, look into opportunities and recommendations. For example if we expand 'eliminate render-blocking resources'. It will point to resource that is causing issue.

In order to fix the score, you need to exactly work on these issues.

To generate report again, click plus icon at the top left in dev tools in Lighthouse tab

Google PageSpeed Insights

Next we have 'Google Page Speed Insights' tool from Google. How to use Google PageSpeed Insights? Enter a live web page URL and you will get performance report and suggestions to fix problematic areas.

Lighthosue and Google Page Speed Insights show strict report. These two are used more than others. And these are almost similar in results.

GTMetrix

GTMetrix also is a good choice for website performance test. How to use GTMetrix? It provides similar report and also suggests fixes. Go to GTMetrix and enter website URL to test.

Use these tools to debug website performance and speed issues. Fixing these issues will make your website rank better in search results. SEO will be improved. Website will be faster. Overall it will improve website health.

Web developers and quality assurance team rely on these tools in creating and auditing websites on daily basis. So master to fix website performance issues reported by these tools, and you will be considered a good web developer.

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