10. The method of claim 1 , further comprising adapting, by the application, one or more of the plurality of secondary web site categorization rules based on the counting, for each category of web page, of the number of occurrences of different keywords in the URLs stored in the pool of validated URLs that are associated to the category.
10. The method of claim 1 , further comprising adapting, by the application, one or more of the plurality of secondary web site categorization rules based on the counting, for each category of web page, of the number of occurrences of different keywords in the URLs stored in the pool of validated URLs that are associated to the category. 11. The method of claim 10 , further comprising, after adapting the one or more of the plurality of secondary web site categorization rules, reevaluating, by the application, each of the URLs in the pool of validated URLs using the adapted one or more of the plurality of secondary web site categorization rules.