REGLES SUR LE REFERENCEMENT

On-Page (Keyword-Specific) Ranking Factors

1. Keyword Use Anywhere in the Title Tag

   66% very high importance
   8% moderate consensus

2. Keyword Use as the First Word(s) of the Title Tag

   63% high importance
   11.3% light consensus

3. Keyword Use in the Root Domain Name (e.g. keyword.com)

   60% high importance
   11.2% light consensus

4. Keyword Use Anywhere in the H1 Headline Tag

   49% moderate importance
   10.2% light consensus

5. Keyword Use in Internal Link Anchor Text on the Page

   47% moderate importance
   13% moderate contention

6. Keyword Use in External Link Anchor Text on the Page

   46% moderate importance
   13.6% moderate contention

7. Keyword Use as the First Word(s) in the H1 Tag

   45% moderate importance
   11.7% light consensus

8. Keyword Use in the First 50-100 Words in HTML on the Page

   45% moderate importance
   9.9% light consensus

9. Keyword Use in the Subdomain Name (e.g. keyword.seomoz.org)

   42% low importance
   9% light consensus

10. Keyword Use in the Page Name URL (e.g. seomoz.org/folder/keyword.html)

    38% low importance
    9.1% light consensus

11. Keyword Use in the Page Folder URL (e.g. seomoz.org/keyword/page.html)

    37% low importance
    8.6% light consensus

12. Keyword Use in other Headline Tags (

    –

    )

    35% low importance
    8% light consensus

13. Keyword Use in Image Alt Text

    33% minimal importance
    8.7% light consensus

14. Keyword Use / Number of Repetitions in the HTML Text on the Page

    33% minimal importance
    10.3% light consensus

15. Keyword Use in Image Names Included on the Page (e.g. keyword.jpg)

    33% minimal importance
    8.6% light consensus

16. Keyword Use in or Tags

    26% minimal importance
    7.6% moderate consensus

17. Keyword Density Formula (# of Keyword Uses ÷ Total # of Terms on the Page)

    25% minimal importance
    9.8% light consensus

18. Keyword Use in List Items

19. on the Page
20. 23% very minimal importance
    9.5% light consensus

21. Keyword Use in the Page’s Query Parameters (e.g. seomoz.org/page.html?keyword)

    22% very minimal importance
    7.6% moderate consensus

22. Keyword Use in or Tags

    21% very minimal importance
    8.4% light consensus

23. Keyword Use in the Meta Description Tag

    19% very minimal importance
    9.9% light consensus

24. Keyword Use in the Page’s File Extension (e.g. seomoz.org/page.keyword)

    12% very minimal importance
    8.3% light consensus

25. Keyword Use in Comment Tags in the HTML

    6% very minimal importance
    5.7% moderate consensus

26. Keyword Use in the Meta Keywords Tag

    5% very minimal importance
    5.5% moderate consensus
    1. http://www.seomoz.org/article/search-ranking-factors#ranking-factors
    2. http://www.seomoz.org/article/search-ranking-factors#overview

    La balise méta keywords (mots clés) est morte et enterrée !!! (par Google) depuis déjà longtemps… mais enfin Google l’annonce officiellement :

    http://googlewebmastercentral.blogspot.com/2009/09/google-does-not-use-keywords-meta-tag.html

    Voila une  confirmation des changements apportés à la méthode d’indexation du  moteur de recherche…!!!!!!!!!!!!!!!!!!!!!!!! Gg

    D’ailleurs les outils pour webmaster le confirme, voilà la liste des balises méta et autres… prises en compte par Google… les autres sont considérées comme du « folklore » :

    http://www.google.com/support/webmasters/bin/answer.

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