25. The method of claim 1 , further comprising determining at least one change to the initial mark-up language document according to said analyzed response.
25. The method of claim 1 , further comprising determining at least one change to the initial mark-up language document according to said analyzed response. 30. The method of claim 25 , further comprising determining an effect of said at least one change on a search engine ranking of said initial mark-up language document; and comparing actual and predicted search engine rankings to determine whether said effect is expected.