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I came to this company the first job is daily hair outside the chain, where the exchange of links is a very important work. At the beginning, their website keyword ranking No, PR value did not, exchange links with others as long as the other side is willing to, anyway, is a new station, are beginning again, together efforts Bai, say old station also ignore you.
Later with the increase in work time, their own learning, found some problems, and some links by the other side of the site added nofollow tag, like this: <a href= "http://www.example.com/" rel= "nofollow" > Here is the anchor text </a>. Nofollow label Google gives the explanation: When Google sees the attribute rel= "nofollow" on hyperlinks, those links won ' t got any Rank websites in our search results. Is that once Google finds that the hyperlink contains the attribute ("Rel=nofollow"), such a link will not be used as an evaluation basis for a site in the search results rankings.
In addition the nofollow tag also has a role, if you sell ads on the website, you can use this tag. Because the original intention of buying and selling web ads should be traffic, not PR value or try to influence search engine rankings. Adding this tag does not affect traffic at all, but it may reduce the impact on search engine rankings.
If is the general Small Enterprise website, adds the nofollow label the Friendship Link does not have the function, therefore only then contacts the other party to erase. There is a business-to-business Web site, I have changed a business-to-business website, at that time is to know the other party's friend chain is nofollow, they change the link of the little girl also quite will say: Our website traffic is big, perhaps will give you some traffic or even order also perhaps? Think about it, just try it, but the results verify that Her website did not bring me traffic, but the PR value of their site is growing fast, from 0 direct to 6. Later in the group and everyone chatted about this matter, some group friends said, SB just and he change, know is nofollow also change, you silly ah! In fact, it should be everyone's consideration.
Now used to, the exchange of links, the other side sent the station, the first thing is to check the source file, Ctrl find out if there is no nofollow, then use webmaster tools to check each other's friends chain, whois information.
In fact, nofollow tags are usually used in blog comments, forum posts, social web sites, message boards and other places, because in these places any user can be free to leave a link, the webmaster generally do not know the link to what the Web site, it is not possible to one by one to view the verification, so is the most of the But for some of our small business station, Nofollow label is not what role, so I hope friends exchange links or a friendly, sincere treat others, sincere to their own! Lest be scolded, after all, change link circle is such a pile of people!