Your site construction outside the chain is really useful outside the chain

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The construction of the website external link has the extremely important position in the website SEO optimization process, therefore in the SEO personnel's eye he has the pivotal role. The release of the chain is a need for perseverance and perseverance of the work, you pay so much sweat to establish the chain in the end is not really useful outside the chain it? or have been doing nothing? Today, Jiaxing SEO for you to explain the next several invalid outside chain:

One, outside the chain address using JS jump

We all know that the search engine for the JS code of limited Awareness, JS code can not give us the weight of the site transmission.

Second, jump links

This kind of jump link situation's URL generally appears in stationmaster's favorite question and answer platform. Say a typical example, Tencent Soso Quiz platform weight is very high, webmaster are also like to publish their own site outside the chain, but Jiaxing seo think, soso answer is a typical jump link, will not pass any weight for our website.

Iii. nofollow Label

Baidu official clearly stated about the role of the nofollow label and do not pass the weight.

Iv. links in the IFRAME framework

IFrame and JS code have one thing in common, that is not conducive to search engine crawling and weight transfer. Search engine spiders generally on the site of the IFRAME and JS code generally skip directly.

Five, the Robots file screen page

The main expression of the invalid outside chain is that our outer chain is posted in a page that has been blocked by webmaster robots.txt. Imagine that a spider has not crawled the page, you also expect spiders to crawl to your site.

This article is from Jiaxing seo (http://www.jxhot.cn) jiaxing Hao Large network technology, reprint please bring links!