About 5 years ago search engines realized that blogs, comments and user generated content were going to pollute the web with an endless stream of low quality, off topic, unmanaged links. As the search engine ranking algorithm is primarily link based, this had the potential of making search engine results unusable.
How to Stop Links Gone Wild
The answer to a new influx of links was the nofollow tag, which literally would tell a search spider not to crawl this link. the tag looks like
<a href=”http://questionable site.com” rel=”nofollow”>questionable anchortext<a>
The question we are asking is if the nofollow link tag is dying. The answer is no, but it is changing. Increasing use of nofollow for a range of purposes.
Google lists the three main intended uses of nofollow as:
- Linking to untrusted content
- Paid links
- Crawl prioritization (typically linking to yourself with nofollow)
See more opinions on the nofollow tag and the rise of microblogging from a Will Chritchlow.
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