What is the Difference between a Search Engine and a Directory?

I have mention that to promote our website, the best ways is by putting it in a search engine or a directory. This is because most new user is come from search engine, they utilize the search engine for finding an information for their own. But what is actually the differences between Search Engine and Directory, i will summarize it here :

  1. Search Engine is a robot that a human is program the spider algorithm for crawling a site. but humans have nothing to do with your site when the spider is visiting your site or when the engine is ranking your pages. A directory is another way around, when you submit a url to directory ( Dmoz.org is example of Directory ), a human will review your site for consideration in their directory of web sites.
  2. A search engine has a very large database because it will store several pages of every web site it indexes. A directory will only store a link to the home page of each site and a description.
  3. Search engines will take the description either from some of the sentences on the web page or from
    the description meta tag. A directory will take the description from your submission information.
  4. Each major search engine is usually associated with a directory. For instance, when you go to Google
    and you type in a search, you are getting results from all the web sites stored in Google’s database.
    It is believed that Google’s algorithms are also programmed to place emphasis on sites that are also
    listed in the Dmoz directory. However many top SEO’s argue this holds less weight today.

Even if we rarely using a directory, but it is a good idea to place your site on many directory. Because sometimes search engine also use directory database.


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