How to do a website speed test? Detailed operation steps and skills to share

in the current increasingly fierce traffic competition, website loading speed directly affects user retention, conversion effect and even search engine ranking. More and more operators have begun to pay attention to website performance optimization. As the core premise of performance optimization, website speed testing can accurately locate loading bottlenecks and provide data support for subsequent optimization. This article will share professional website speed testing methods and practical skills from multiple dimensions such as tool selection, practical operation steps, and result interpretation to help you quickly master this key skill and lay the foundation for website performance improvement.

, how to choose the right website speed testing tool?

different website speed test tools have different focuses, only by choosing the right tool can we obtain accurate and valuable test data, and provide a reliable basis for subsequent analysis and optimization.

1, professional comprehensive testing tools

such tools are comprehensive and can generate website speed test reports from multiple dimensions, such as GTmetrix and PageSpeed Insights. GTmetrix can simulate the access scenarios of different regions and different devices, and provide loading waterfall charts, performance scores, optimization suggestions, etc.; PageSpeed Insights is developed by Google, combines laboratory data and real user experience data, and can also give optimization directions for mobile end and desktop end, suitable for operators who pursue comprehensive data.

2, lightweight and shortcut test tools

if you only need to quickly get the core data of the website loading, lightweight tools will be more suitable, such as the fast test mode of P< unk > and WebPageTest. P< unk > is easy to operate, and a few seconds after entering the URL can give basic data such as loading time, number of requests, page size, etc.; the fast mode of WebPageTest can provide testing options for multiple nodes around the world, which is convenient for understanding the access speed of users in different regions, and is suitable for daily quick inspection of website performance.

What are the standard operating steps for website speed testing?

standard test steps can ensure the accuracy and comparability of website speed test data, avoid data deviation caused by improper operation, and affect subsequent analysis and judgment.

1, set up a unified testing environment

test to determine the unified environment parameters, including test node area, device type, internet bandwidth, etc. For example, if the target user is mainly in China, choose the domestic test node; if the mobile end traffic proportion is high, the mobile end device is preferred as the test benchmark. At the same time, close the local VPN, download tools and other programs that may occupy bandwidth to ensure the stability of the testing environment and reduce the interference of external factors on the website speed test results.

2, perform multiple tests to take the average

the results of a single website speed test may be affected by temporary network fluctuations, and there is a certain contingency. It is recommended to test 3-5 times in the same environment in a row, and then take the average value of each data, so that the results are more reference value. After the test is completed, record the core data of each time, such as loading time, first screen loading time, number of requests, etc., to facilitate subsequent comparative analysis.

How to deeply analyze the website speed test results?

get the website speed test report, can not only focus on the surface of the loading time numbers, but also in-depth interpretation of the data, precise positioning of the core issues affecting the website loading speed.

1, focus on analyzing core performance indicators

core indicators in the website speed test report include first screen loading time, maximum content drawing LCP, first input delay FID, etc. First screen loading time directly affects the user's first impression, more than 3 seconds may lead to user churn; LCP reflects the loading speed of the main content of the page, which is one of Google's core web page indicators; FID is related to the fluency of user interaction. These indicators can intuitively reflect the core performance of the website and need to be paid attention to.

2 Locate loading bottlenecks through waterfall diagram

most professional website speed testing tools will provide a loading waterfall diagram. Through the waterfall diagram, you can clearly see the loading time, request order and blocking of each resource. For example, if a picture resource takes too long to load, it may be that the picture is not compressed; if multiple JS files make requests at the same time, it may be necessary to merge files or delay loading non-core scripts. Through the waterfall diagram, you can quickly find the specific resources that affect the loading speed.

4. What are the optimization directions after the website speed test?

the ultimate goal of website speed testing is to optimize performance, and formulate targeted optimization programs according to the test results in order to effectively improve website loading speed.

1, Resource Compression and Merge Optimization

according to the website speed test results, if you find that the page resources are too large and the number of requests is too large, you can optimize it by compressing and merging resources. For example, use tools such as TinyPNG to compress pictures to reduce file size while preserving image quality; merge CSS and JS files to reduce the number of HTTP requests and reduce server response pressure, thereby shortening the overall load time.

2, cache strategy and CDN configuration optimization

If the website speed test shows repeated loading of static resources, browser cache and server cache can be configured to allow users to read resources directly from the local cache when visiting again, reducing repeated requests. At the same time, with CDN information delivery network, static resources are distributed to multiple nodes around the world, and users get resources from the nearest node when visiting, which greatly shortens the resource transmission distance and improves the loading speed.

To sum up, website speed testing is the core starting point for website performance optimization. From selecting appropriate testing tools and standardizing test steps to in-depth interpretation of test results and formulating targeted optimization plans, each link directly affects the final performance improvement effect. Regular website speed testing and continuous tracking of performance changes can help operators find problems and adjust optimization strategies in time, so as to provide users with a smoother access experience and help websites achieve better operational results.