Role of w3c validations in search engine optimization

Obviously content is very important for search engine optimization
If you have a site with no quality content and no backlinks yet are 100% compliant with W3C standards, the site will still not rank well in search engines

Google has clearly stated that W3C validation does not affect search engine rankings. the page will not rewarded with a higher in search ranking.

Still we should consider the Points listed below as a Role of w3c validations in Search engine optimization

1.Minimize Page Load Time for great website visitor experience
2.Minimize Bounce Rates for your website
When you validate your content grammatically ,Markup,css,rss,mobile compatibility using w3c validations,then you can go for other important Search engine optimization tasks.
http://seow3c.blogspot.com/2010/07/seo-tasks.html