Installation and documentation of YSlow

YSlow official website http://yslow.org/

Obviously, the name is why slow is so slow, it's taken for granted that the current page is being tested.

Borrow Baidu's

What is YSlow? YSlow is a Firefox-based plugin released by Yahoo. How do I install YSlow? To install YSlow, you must first install Firebug, then download YSlow, and then install it. What's the use of YSlow? YSlow can analyze the page of the website and tell you how to optimize it based on some rules to improve the performance of the website. YSlow can analyze any web site and produce an overall report for each rule, and if the page can be optimized, YSlow will list the specific changes. I believe everyone will use the above said to install, yes, I am!!! My Firefox 36.0.1, firebug2.0.8, YSlow3.18 then ~ ~ ~ Although Firebug has YSlow, but is the click No response, the urgent death .... Then I set the Load page to automatically enable the YSlow Analysis Web page, is possible!!! And then I started to find a way out. This can take me a long time ah (spit groove, perhaps the IQ is too low), several methods, 1 reload, is incompatible version, the amount, re-installed FIREBUG1, no, give up, or how many times to traverse 2 initialization information firefox.exe-p the essence or re-loaded but still not 3 Browser Other plugins affect the YSlow, have tried, useless. I guess it must be a version incompatibility issue, would like someone to solve the trouble to tell you, thank youThen find a simple way to see http://www.speedawarenessmonth.com/getting-started-with-yslow/in fact, the official website also said, is not understand, English is not very good, this has a picture is actually add a bookmark , with the time to open, YSlow is based on JS, so this bookmark is also a series of JS file composed of open http://yslow.org/mobile# STHASH.SLLSSZXS.DPUF, see the Big yslow tag, drag to the Bookmarks bar, add, and then each visit to a webpage, open the bookmark on the line (but the official website said this method does not apply to all browsers) So let's take a look at YSlow's data analysis. I opened the Baidu news, to see all the control elements after the YSlow analysis (HTML scripts, pictures, etc.), given the results of the analysis of the total score is represented by numbers and letters, the number is from 0~100, 90-100 is a, 80-90 is B, go down, if not a then you need to improve. Let's take a look at the Baidu news is 73, there is room for improvement #2 individual points are evaluated for each element anything that's not a-A is an opportunity! #3 show some elements that are not evaluated, such as 7 external JS files, and 14 externally loaded background images, to be evaluated together #4 more information These tests are judged from some good rules, and there are three rules to choose from, so much more in the hope that we can learn more.

Installation and documentation of YSlow