DWQA QuestionsCategory: ProgramThe customer said that the browser is slow to load pages, HTML can load all files normally, but the display page is slow. How to troubleshoot the problem
Xiao Liu asked 1 month ago

The customer said that the browser is slow to load pages, HTML can load all files normally, but the display page is slow. How to troubleshoot the problem,For Chrome browser, F12 first look at network, open network, disable cache in the first step, and then refresh the page to see if the transmission data size in the second part is the same as you expected
clipboard.png
You can see something similar to the green Gantt chart on the right side of the request. The scale of this chart is not correct. It is very strange to display. You can see the start and end times of each element loading
This is the first step to understand the progress and size of page loading
Targeted optimization for slow loading links is OK

Remember to open gzip

,There is a performance option under Google debugging. You can run and have a look. It will show the time spent in each stage, and then locate it.
clipboard.png,Network, find out which resources are slow to load or slow to render, and apply the right medicine to the case,Check whether it is JS or DOM or server through network and performance. Find the cause of the problem and solve it step by step.
JS: optimize some algorithm functions, cache some variables of JQ, etc.
DOM: refactor it.,See if it is the problem of network bandwidth, and then whether your JS code is not optimized enough.,It is recommended to try pagespeed. There will be an overall page score, and then there will be optimization tips, levels to be optimized, compressed pictures, etc. you can find a tutorial for details.

joyqi replied 1 month ago

I’ll delete it if I don’t add any more

joyqi replied 1 month ago

Please use the comment function

joyqi replied 1 month ago

Questions should be put in comments, not in answers.

joyqi replied 1 month ago

@fenYes, it is executed at the terminal

joyqi replied 1 month ago

Please ignore this clause

joyqi replied 1 month ago

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joyqi replied 1 month ago

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joyqi replied 1 month ago

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joyqi replied 1 month ago

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joyqi replied 1 month ago

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6 Answers
50Percent answered 1 month ago

For Chrome browser, F12 first look at network, open network, disable cache in the first step, and then refresh the page to see if the transmission data size in the second part is the same as you expected
clipboard.png
You can see something similar to the green Gantt chart on the right side of the request. The scale of this chart is not correct. It is very strange to display. You can see the start and end times of each element loading
This is the first step to understand the progress and size of page loading
Targeted optimization for slow loading links is OK

Remember to open gzip

tony_gong answered 1 month ago

There is a performance option under Google debugging. You can run and have a look. It will show the time spent in each stage, and then locate it.
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lucifer answered 1 month ago

Network, find out which resources are slow to load or slow to render, and apply the right medicine to the case

Desperado answered 1 month ago

Check whether it is JS or DOM or server through network and performance. Find the cause of the problem and solve it step by step.
JS: optimize some algorithm functions, cache some variables of JQ, etc.
DOM: refactor it.

Even_Yu answered 1 month ago

See if it is the problem of network bandwidth, and then whether your JS code is not optimized enough.

Kaka dfsq answered 1 month ago

It is recommended to try pagespeed. There will be an overall page score, and then there will be optimization tips, levels to be optimized, compressed pictures, etc. you can find a tutorial for details.