For performance analysis we would like to archive the detail performance for each HTTP. Chrome provide an useful tool—HAR to help us save and reuse the HTTP performance.

Let’s have a look together.

Basic info: HAR (HTTP Archive) is a file format used by several http session tools to export the captured data.

(1) Press F12 to enter the debug mode.

Right click on the HTTP and choose “Save as HAR context”.

You will get the downloaded file with .har postfix.

(2) Access below HTTP. it’s online translate website.
https://toolbox.googleapps.com/apps/har_analyzer/

這個(gè)網(wǎng)站可以幫你加載本地文件然后進(jìn)行渲染，顯示該HAR文件對(duì)應(yīng)的HTTP請(qǐng)求的各項(xiàng)性能指標(biāo)。

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