Seo tips: introduction and use of nofollow attributes

NofollowWhat does that mean?

We know that reverse links are the main calculation indicator of Google's PR value. To add reverse links, Seo writers publish a large number of irrelevant links on forums and blogs. The existence of these spam links causes a certain amount of trouble for the search engine to evaluate the web page quality. Nofollow is a property introduced by Google, Yahoo, and MSN to cope with spam. It should be widely used at present.

If a link on webpage a points to webpage B, but webpage a adds rel = "nofollow" to the link, then, the search engine does not calculate webpage A as the reverse link of webpage B.

How to Use nofollow?

If a blog has spam comments:

<A href = "http://www.example.com/"> top </a>

Follow these steps to perform nofollow:

<A href = "http://www.example.com /"Rel = "nofollow"> Top </a>

The search engine does not include this link when calculating the prvalue.

About nofollow:

• Currently, the nofollow attribute is added to most blogs and website construction systems. That is to say, it is futile to leave a link on others' blogs to obtain the prvalue. (Nofollow is used in most celebrity blogs)
• If you are worried about website spam, nofollow is a good "pull link firewall ".
• Nofollow does not mean that the search engine does not include the link, but does not include it in the reverse link.

This is important to seoer.

You can add nofollow for the internal link of the site. For example, if you contact us, link about us, privacy protection, company profile, website background, and so on, you can remove them from nofollow. In this way, the prvalue of the homepage will not be transmitted to them. Because it is useless to have too many prvalues.

From: http://www.seowhy.com/10_106_zh.html