Technical audit of the site

Working on the site:
1 . Check the speed of the site
2nd Check the availability of the domain, clips and redirect, install the .htaccess file (click the domain from www and without www)
Three Creating and adding a robots.txt file
4 . Verification of validation code
and 5. Recommendations for improving the web site
6 . Link to duplicated pages
7 . Writing the meta tags (title, description, keywords)
8 . Increasing the relevance of a page to a keyword
The 9. Text optimization, picture under keywords
The 10. Implementation of translining
11 of 11. Set up tasks for programmers to work with scripts on the site, adding elements to the site