I just saw an interesting question in a forum: how does a blog help with SEO? Here’s the answer I offered:
An active (and that’s important) blog is attractive to a search engine for three primary reasons:
- It’s updated with new information regularly
- Through the mechanism of tags and categories (or labels on blogger), its content is well organised and, therefore, easy for the search engines to find. (And readers too, of course!).
- By means of the comments and trackback features, it has input, contributions and links from people in addition to the blogmaster, which the search engines like.
All that pre-supposes that the blog is active – that’s important!
However, the reason that articles on blogger and wordpress.com blogs, particularly new blogs, get indexed so quickly has more to do with the domain than with the blog.
And you can test that out very quickly and easily:
If you write a new article and set it up on a new wordpress.com (or blogger) blog and a new article and set it up on a new self hosted wordpress blog on a new domain, the wordpress.com (or blogger) article will get indexed and start ranking in the search results very much more quickly. We’re talking days as against months here.
However, this changes over the long haul if you set up your own blog on your own domain.
Once the search engines find it and once your domain establishes its credibility with the search engines, then new articles on your blog will be indexed very quickly. My articles are often indexed within an hour of publishing them.
This is because of the 3 reasons I mentioned above, but also because your domain has now established its credibility and you can tweak your self hosted (WordPress) blog almost infinitely, to increase its SEO effectiveness.
So, to answer your question ‘how does a blog benefit SEO’: If you have an existing static site which has been operating for a while and you set up a blog in a sub directory then, as long as your blog is active, it will start to attract the search engines and, subsequently, some of the credibility that your blog generates will pass back to your main site.
And, of course, you can use your blog to direct the traffic its getting back to your main site as well – so it effectively becomes a feeder site.
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