At present, most of the blog and the establishment of systems have added the nofollow attribute. In other words, leave links on other people’s blog to get the PR value of the approach is futile. (Especially the celebrity blog, basically use nofollow)
If you are worried about the site being intrusive spam links, nofollow is a very good “refuse Link Firewall.” nofollow does not mean that the search engines do not include a link, but do not count backlinks only.
We know that backlinks are the main index to calculate the value of Google PR. To add back links, SEO cheating in a lot of forums and blog publishing content with irrelevant links. The existence of these spam links to search engines to assess the quality of web cause some degree of trouble. nofollow is the Google, Yahoo, MSN properties in response to a link spam (Spam) introduced, this property should now be widely adopted.
If there is a link to the previous page A page B, but A link to this page to add a rel = “nofollow” tagging, the search engines do not count towards the A page B page backlinks.
What is the link nofollow attribute
The so-called link nofollow attribute are those that although you can reach through hyperlinks to external sites, but this does not give the external website links to increase the weight, this will not have any impact site generates links, add nofollow link attribute does not represent linked to the site to vote through the link nofollow attribute tells the search engine web link within the meaning of this link I can not control, the site has nothing to do with this site. Links normally do when we should pay attention to prevent others add nofollow attribute so that you actually think it would be a one-way link to link, and this is relatively rare, but Bukebufang. General common blog programs are default blog message inside URLs added nofoloww properties, so let through blog comments to improve their site’s ranking has become impossible.
How to add a link nofollow property
To add a link nofollow property is very simple, just add “rel = ‘nofollow'” attribute in the link can be.
There are comments on a blog as spam:
<a href="http://www.52wordpress.net/"> keywords </a>
The following operations, namely the nofollow:
<a href="http://www.52wordpress.net/" rel="nofollow"> Keywords </a>
Search engine in the calculation of PR value, the link will not be counted.
This is for the following SEOer very important.
You can add nofollow internal links site. For example: Contact us About Us link, privacy protection, company profiles, website background like they could be nofollow out, doing the PR value of the home will not be transferred to them. Because they have too much PR value is obviously useless.