1. Site analysis
2. Outbound links
3. Image analysis
4. Checking the sitemap
5. Check for broken links
6. HTML tags
7. Check site mirrors
8. Checking duplicates
9. Checking link anchors
10. The presence of 404 errors and broken links on the site
11. Multiple redirects within the site
12. Wrong server response to request
13. Duplication of titles Title and meta tags (Description+ H1, H2)
14. Finding multiple H1s on pages. H1 is missing or empty (H1 is an important title tag)
15. Check robots + sitemap
16. Errors 3x x, 4x x and 5x x;
17. Estimating site and page speed
19. HTML + CSS Validation Errors