About whether the short link to SEO has the impact of a little thinking

First in the New Year in Shijiazhuang SEO blessing A5 all staff and the majority of small webmaster Happy New Year! Two days ago to read a piece on the impact of the short link to SEO article: Short URL on the impact of SEO and application, the article explains the short link to the original link did 301 redirect to SEO is no impact , as well as the Google engineer's video as an authoritative support.

Short address applications Most of the place I believe we all know is the microblogging address short link, for the domestic, Sina Weibo short link for t.cn, Tencent for Url.cn, Sohu's short link is t.itc.cn, NetEase for 126.fm, the author of these short links do the HTTP head test, come to figure:

　　

Can be seen, Tencent's short link for the original link made 301 redirect, the other 3 did 302 redirect, what is 301, what is 302? Let's take a look at it first:

redirect:301 represents permanent transfer (permanently moved)

302 redirect:302 on behalf of temporary metastasis (temporarily moved)

301 redirect is the best way to search engine friendliness after changing the address of a Web page, as long as it is not temporarily moved, it is recommended to use 301来 to make a transfer.

and 302 redirect in a few years ago, many black Hat seo has widely used this technology cheating, at present, major search engines have stepped up the crackdown, like Google in previous years to business.com and the recent penalties for BMW's German website. Even if the site is not objectively spam, it is easy to be the search engine easily misjudged as spam and be punished.

have done the site to change the domain name webmaster should have done 301 Redirect, I believe that experienced 301 redirect effect, generally speaking the weight of the transfer needs a few months, and generally can not be fully transmitted, can only pass most of the weight, so 301 redirect itself is a lossy weight transfer, So the individual thought that the short link has the influence to the SEO, but fortunately Haurai now the short address service has done 301 redirects, if you do not do you have no way, and then one is like micro Bo such as the Instant Star Message board class of the page is the weight is very low, it is recommended that the majority of webmaster do not spend too much thought on the micro-blog to do outside the chain, However, you can do in the micro-blog to introduce traffic, I wrote a time ago about micro-blog import flow of the article, we can to my blog reference (http://www.seoued.net/short-url-seo.htm) hope for everyone useful!