10 Designer's Checkpoints should be known

smashingmagazine.com
  1. Know how good your site ranks.
  2. Use the power of Usability Tests
  3. Track your growth permanently
  4. Make sure your site is prepared for search engines
  5. Identify your weak spots and fight against them
  6. Ensure the Best Performance
  7. Ensure the best quality of your content
  8. Know what your users are doing
  9. Explore your demographics - know who your users are
  10. Know where you stand