Hi All,
These are the onpage
seo elements which i know. Please add some more if you know more than below ones
1. Title tags
2. Meta tags
3. Header tags
4. Alt and Title tags
5. Content Optimization
6. Canonicalization
7. HTML and CSS Validation
8. Broken links
9. Code to text ratio
10. External JavaScript file
11. Error Page Configuration
12. Robots.txt
13. Server Type
14. Page Size
15. Flash
16. XML and Static Sitemaps
17. Link Structure or Navigation
18. Redirections
19. Outbound Links
20. Frames
Regards
Subhzash