[Web] DNS resolution and performance optimization ip

DNS resolution and ip

url Uniform Resource Locator It may be specified in a resource file is probably a method (such as interfaces)

Why do I see a site that moves it is because the browser can parse html

DNS resolution ip address

http Definitive Guide

js engine

301    302

Domain name server ip server

Whether legitimate cookie

.cn .org .gov top-level domain

 

www.baidu.com

news.baidu.com.

 

From right to left to resolve domain names to parse Is the public network (the outermost layer of the domain name) and then parse the meaning of sub-domain .com and baidu news is then followed by ip and then return to the page

 

Why not take the total public

Hash local operators make a deposit (optimization)

Thing webserver behind

Performance (time point) data collection method

TCP transport layer 4 transport protocol data penultimate

IP Network Protocol Layer 3 addressing countdown

DNS is an alias ip  

Complementary

The front page rendering process

 

 

 

 

 

 

 

Army Regulation [Yahoo]

 https://developer.yahoo.com/performance/?guccounter=1&guce_referrer=aHR0cHM6Ly93d3cuY25ibG9ncy5jb20v&guce_referrer_sig=AQAAAAta0j_5fOO-_1WbzGD7MAK2k0t5Ky0KC47O9_W4pcN78fZ2Zkzd3JV4vMSA-Y4zb5rsXMMsaqFLCZo5SlYaFaYAbwNbHGNWgk-RBVBR1aWqKjTOfQlsxNLrOe7c5xxdBF6tjTw45R_xEs1cj-K4q1g8yApulVbftV9uzez8-7eA

 

[As a front-end engineer you know what your little partner] --chrome

https://github.com/ChenChenJoke/JokerChrome

[## Web Performance Optimization: Performance, data collection methods ###]

 https://github.com/ChenChenJoke/JokerWebFont/tree/master/Performance

 

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Origin www.cnblogs.com/websmile/p/11389666.html