today found has a paragraph Yahoo publishing of based on Firefox Xia Firebug of plug-in YSlow website optimization plug-in, after doubled research zhihou, found this paragraph plug-in does is good, on website of each page optimization are is has help, he will told you you of website those local optimization do of bad, those local need improve, I see has Xia he of tools inside has a compression pictures of tools, does do of quite hegemony of. I compress pictures feature of YSlow today describes a webmasters you friends.
prior to installing the YSlow, need to install FireFox to another popular Firebug WEB development tool, after you install YSlow, you can use YSlow to analyze the Web page's HTML code and JavaScript code, and optimization.
click on tools , And then there are all Smush.it, clicks will then go to a page of Yahoo, as shown in Figure
This page records all images with the current Web page information , Those pictures also can was compression, can compression how many,, click above of Download Smushed Images button on can's these pictures download down, cover to you website original of pictures file, and he also provides has a is humanized of select, retained pictures of directory structure (Keep directory structure in zip file), this meaning ignorant with you can directly to download down of compression package extract Hou entire upload to you of website directory, and does not need own a Zhang Zhang to cover. In this way, your website top picture compressed significantly, entire page decreases, access speed is faster than the original.
according to Yahoo's official introduction, this tool's image compression is lossless, meaning that you can with no loss in accuracy under the premise of a picture to your Web pages is of thin, this does not know what tools do you use to detect compressed picture is damaged, but I by naked eye observation before and after compression of the picture, didn't feel what difference, we can also try to look at yourself. More YSlow function awaiting you to research.
