Another SEO loophole closed
For quite a while the automatically generated links below every Twitter post ("about 5 hours ago from twitterfeed" for example) were normal, followed links. This gave clever SEO's a loophole to quickly generate tons of followed links by building an app using the Twitter API and posting tweets.
However, no loophole remains undiscovered for long, especially once people start blogging about it. Twitter seems to have closed the door on this loophole as these links are now nofollowed.
Effectively this means hundreds of thousands of links generating link juice and visibility have now been made obsolete. No SEO advantage can be gained from Twitter apps any more.
While this makes some SEO's understandably angry, others may feel it's a good thing this loophole has been closed. After all, these were not 'real' links, and by nofollowing them Twitter has classified them appropriately.
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