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Site optimization--Reduce HTTP requests

Source: Internet
Author: User
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There are several procedures required to send an HTTP request

Domain name resolution--TCP connection--Send request--wait--download resource--Parse time

This can take a while, so there are several ways to reduce your Web site's HTTP requests as much as possible:

1. CSS Sprite diagram

2. Image map

Image map can be divided into a number of areas to achieve a click on different areas to jump to different links

<Body>    <imgsrc= "./1.jpg"Usemap= "#map">    <Mapname= "Map">        < AreaShape= "Rect"coords= "80,20,163,72"href= "Javascript:alert (' eye ')"title= "Eyes">        < AreaShape= "Rect"coords= "48,116,197,186"href= "Javascript:alert (' mouth ')"title= "Mouth">        < AreaShape= "Circle"coords= "121,76,15"href= "Javascript:alert (' nose ')"title= "Nose">    </Map></Body>

3. Merging standalone CSS and JS files

4. Images using Base64 coded display

Note: Data can be generated in PHP, the disadvantage is that the size of the HTML file will become larger, suitable for small pictures

Site optimization--Reduce HTTP requests

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