360BUY Internal Structure Series-SEO imperfect article (1)

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Many times, when we are pursuing the perfect nature of SEO, we always forget the words "there is no absolute perfect people and things in the world", no matter what, perfect always will not exist, we can deliberately to pursue perfection, but also should think about the perfect meaning of what, in the SEO, Our pursuit of perfection is for the user experience, but not perfect SEO is the user experience the greatest improvement, after writing "in detail the internal structure of 360buy series-title titles" After, please see-detail 360BUY internal structure series-SEO not perfect, tell about the Beijing-East Imperfect SEO Story

1 Head Part bloated

Many times, when we pursue the results of the Web site, often will find the following test results, the page belongs to the Beijing-east of the random an inside page, showing the lack of software tips.

As you can see from the picture above, a page has 18 external JavaScript scripts, 3 external style sheets, 16 external background pictures, are prompted to be unified into one, in many software will be prompted, because it is for a page, rather than the entire site, if you need to do the whole station optimization, What you need to do is to make the files that are called simultaneously in each page as much as possible in one file. Rather than every page of each style, so that the page load will have some help, separate CSS style sheet, often also for the reason of caching, because when the resource is loaded once, the next time the call directly, Instead of downloading the file again, the user experience sometimes doesn't require a perfect SEO tutorial.

Above is a page inside Jingdong, next we look at the home page, there may be new discoveries; in the home page, we saw a different set of methods, because in the first page, there is no direct call to the CSS, and directly to the first page of the CSS section directly written out, as shown

A format after the CSS style, unexpectedly reached 3818 lines, in the Jingdong home is directly compressed after the code; maybe some friends will ask, jingdong why so, this does not affect the home page? In fact, you try to think about it, only in the home page in this setting, first of all, we determine that the East Jingdong bandwidth is no problem, This set up to ensure that the browser read the CSS, to ensure that the pre-read CSS complete, and then the content frame of the load, but if it is called, the CSS can be invoked and the body content at the same time load, if the CSS page loading is not ideal, may cause the home page to open imperfect So Jingdong here chose the CSS in advance to load OK, and then let the user look at the body part, this is to give up a page of simplicity and clarity, and in exchange for the whole page of the uniform.

2) Total Discard of nofollow

In many places, we will see the figure of nofollow, but in the whole station in Jingdong, it is difficult to find a nofollow tag, as shown in the following figure is the first query nofollow tag results

Here, the author slightly mention the meaning of nofollow, for the search, nofollow can let the spider know that this link is not trusted by this page, the extension of the link to this page is not restricted just, For Google to appear after nofollow will not crawl its links, and for Baidu Link can still be found, but do not pass the weight, the situation is nofollow a link for Baidu or can crawl, although on Google can guide spiders crawl important pages, But for Baidu, the path to guide the spider seems not very cold (guess, hope to have friends can be tested).

But in addition to passing this piece, I think Nofollow also has another point of value, that is the value of invalid links, many times, we will see the following map on the site link,

Perhaps you will overlook such links, but for some sites, these are not to ignore, such links do not have a certain value, after all, JS code-led page can not let spiders know, and the existence of a tag clearly passed the weight out, so that the weight lost, this is we can not ignore the details of the problem, Perhaps for the Jingdong, the site structure of some columns is entirely for the user experience, and these small details here is not so important, but SEO is aware of every point, SEO is not to convey positive knowledge?

This is the two point is the author after the feeling of the origin of the two points, I hope to get approval, refueling slightly, computer graduate design AdSense Fei Original, http://www.jpbysj.com/, do a good job website, feel good.