As you know search engines algorithms look at over 100 criteria. If you read forums about Search Engine Optimization, you will see that some SEO recommend to use keywords in URL and other claim it is useless. The problem is that no one have made real test (or have not published it?). We have decided to run some tests in order to make sure that words in URL is one criteria for search engines algorithms.

Below are the tests we made

As we were only focused on one item (keyword in URL) we have decided:

• To create webpages with the same look and feel of our other webpages
• To create webpages with the "word" rkpatjfg in the URL (directories and file names)
• To avoid the word rkpatjfg in the body text and head text of these pages
• To link to these new pages without using the word rkpatjfg in the anchor text

Before we started our test, we searched for rkpatjfg in Google, MSN beta, Yahoo!, Ask Jeeves, Lycos, Teoma, WiseNut, Exalead (AOL.fr) and Voila. There were no results on these search engines.

A few days later, Google, MSN beta and Exalead indexed our new web pages. Yahoo! also indexed one of them. So we did the same search for rkpatjfg on these search engines.

Results

See all the results in our search engine ranking report.

• Google, MSN (beta), Yahoo! and Exalead take into account the words in the URL.
• The other search engines (Ask Jeeves, Lycos, Teoma, WiseNut and Voila) have not yet crawled our webpages so at this time we do not know yet. Anyway, as soon as their spider crawls our webpages we will update this article.

     

Conclusions

• This test shows that keywords in URL are taken into account by Google, MSN (beta), Yahoo! and Exalead algorithms.
• This test does not show how much it helps for your ranking compared to other criteria.
• When constructing URL directory and URL file names, use targeted and relevant keywords.
• If you use several keywords in your URLs, use hyphens as dividers and not underscores. Read our article about Hyphens and Underscores
• One month after our web pages were added, the following search engines has not yet crawled our test pages! Ask Jeeves, Lycos, Teoma, WiseNut, Voila.
• Google, MSN beta and Exalead were the fastest to index our new web pages.

Related articles and tools we have used for this test

• Ranking report is generated by Agent Web Ranking
• Google test : hyphen or underscore
• Robotstats is a free application analysing the web robots on your site
• Search Engine Relationship Chart (tm) from Bruceclay.com
• If you have tested this query on other search engines, feel free to give the results in this post's comments

Version française : Les moteurs tiennent-ils comptent des mots dans les URL ?

Read Chris Richardson's article in WebProNews, called "Multiple Domains And 301 Redirects".

This article deals with sites having multiple domain names and problems with redirections. What you must do is choosing one main domain name as the official site and redirecting all the others to this one with 301 redirects. If you want know what kind of redirect you're using, copy and paste the URL in this Server Header Checker tool.

A common area of misunderstanding and confusion within search optimization has to do with how and when one should use a redirection document. If you've moved a site to a new domain and you want your normal traffic to follow, a 301 permanent redirect needs to be employed. However, there are other occasions, also involving domain-based issues, when 301's should be utilized.

Read more.