Seo Unfriendly URLs/ Javascript Fixes

Hi, I'm having some seo done on my website. It was recommended that I make the following changes. My site it prestashop based. Checkpoint 1: Canonical URL Google consider WWW and non-WWW version of domains as two independent websites and index them separate, thus creating a duplicate website problem. Solution: We find that your website is hosted on an Apache Server, we recommend placing a 301 Permanent Redirection using .htaccess file from [login to view URL] to [login to view URL] Checkpoint 1: Dynamic URLs We find that most of your website pages are dynamic. Search engines do not like dynamic URLs mainly because of the presence of variables such as “?, +,=” which creates a continuous loop. Search engines avoid crawling through dynamic URLs for the fear of getting trapped in this loop. For Example, we find the following dynamic URLs on your website: [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] Solution: In order to solve this problem, we recommend URL re-writing solution to re-write dynamic URLs into static URLs by removing extra variables and making it easy for search engines spiders to crawl and index the website pages. We find that your website is hosted on Apache. We recommend using Apache Mod-Rewrite re-writing module to accomplish this task. You can find more details about this module at: [login to view URL] [login to view URL] Checkpoint 1: Excessive use of JavaScript We find excessive use of JavaScript on your website. Use of JavaScript code inline within the body tag of website pages makes the pages heavy and difficult to load both for search engines and direct visitors to your website. Solution: We recommend placing all JavaScript code on a file and calling it externally on the website to help load the pages fast. For Example: <SCRIPT language="JavaScript" src="[login to view URL]" type="text/JavaScript"></SCRIPT> Checkpoint 2: Heavy Use of CSS We find heavy use of CSS (Style) within the body tag. Presence of CSS code within the body tag makes the pages heavy and difficult to load both for search engines and direct visitors to your website. Solution: We recommend placing the CSS (Style) code on a file and calling it externally on the website. It will reduce webpage size and make it easy crawling for both direct visitors and search engine spiders to your website. For Example: <LINK href="[login to view URL]" rel="stylesheet" type="text/css"> Checkpoint 3: W3C Coding Standards We find that your website does not meet W3C (World Wide Consortium/Internal Standards Organization) coding standards. Solution: We recommend validating the HTML Code using the validator at [login to view URL] and fix the errors to meet coding standards. The standards complaint will help display correct pages in most of the available browsers.