Monday, January 26, 2009

How to check blog if it is a nofollow

Nofollow is a HTML attribute introduced by Goolge to prevent spamindexing. The way to use this attribute is to add rel="nofollow" into the hyperlink tags "href". Nofollow will tell the search engines that do not follow the link. If the hyperlink has the attribute, then it would not affect the link target's Page Rank. Currently, three search engines support this attribute: Google, Yahoo, MSN Search, although they have different interpretations about the attribute. Now many blogs are using this attribute. Usually, the nofollow attribute is used on the link provided by commenters, which can prevent spammy links gaining any benefit for page rank. However, if you want to know if a blog has nofollow attribute. There are two ways to check if a blog has the "nofollow" attribute.

1: Check the HTML source code of the page, look for the tags that have <a rel=”nofollow”>, if you are seeing a "nofollow" on a link to a commenter, then the page is a nofollow page. Search engine won't follow this link automatically.

2: Firefox users can add a plugin to check "nofollow" attribute. This will speed up the checking. This plugin is named SearchStatus . If you use the "Highlight Nofollow Links" function, then you can see highlight on nofollow links every time you open a web page.

If you know more methods to detect the nofollow attribute, please put it into the comment box.


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