Anti-spam link tag nofollow detailed

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Nofollow is a search engine to prevent the proliferation of spam, MSN, Yahoo, Google joint development of a anti-spam link tag. His role is to tell search engine spiders "do not track this link," If an anchor text link contains rel= "nofollow" This attribute, then this link will not inherit to the weight of the page, think of you white do this link, because you have done no role. We all know that in a page to add a link to our site is to get the weight of this page, when you can not get the weight of this page is equivalent to you do not work hard.

For example, we need search engine spiders do not track all the links above this page, including this also has not been on the external links and inbound links, only need to add this line of the Meta Original tab of this page to:< meta name= "content=" Nofollow ">. This represents the existence of this page all links search engine spiders are not going to crawl (tracking).

Add I want to specify a page of a link is not crawled by spiders, only need this specified link inside the code rel= "nofollow" OK, such as:< a href= "index.html" rel= "nofollow" > Honey Net < /a >

Now mainstream search engines are supporting nofollow, Baidu, Google, Bing, Yahoo are supporting nofollow, once the anchor text contains rel= "nofollow" This keyword attribute, search engine spiders will not crawl the link, and will not be linked to the weight of the technology, Of course, it does not count the anchor text.

Use range:

(1), blog and website comments and messages are included rel= "nofollow" label. If your site is a blog site or contains a comment page that can post links, then you need to join rel= "nofollow" Otherwise, these spam links will be implanted into your Web page, so that your site to give these spam sites to vote, virtually become implicated in punishment victims.

(2), the website's advertisement link may need to join rel= "nofollow" the label, thus may prevent the advertisement link to bring the bad influence to your website, thus can prevent these pages to give you to bring the excessive negative influence, thus avoids your website weight drop the risk.

(3), for keyword rankings do not help link to join Rel= "nofollow" label, such as the bottom of the site navigation, about us, contact us, site recruitment and site registration, login links can be required to join the rel= "nofollow" Because this link has no effect on the rankings.

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