H tags
301 redirects
w3c validator

On page SEO, is really very effective, there is no doubt to it, you should use fresh content so that you would get the benefit.

On-page SEo increase the visibility of a webpage and make it search engine and user friendly. The techniques involved in are:
Meta Tag
H1 Tag
URl Optimization
Image and Link Optimization
Internal Linking
Content Optimization : Placement of Keyword, Keyword Density
Sitemap: Both HTML and XML

Get traffic with responsive web site
 

Responsive web site is produce more traffic .

optimize Title tag , URL , Content of page , Image alt text etc is called on page seo

On-page SEO is the search engine optimization part which is done over the page or pages of the site itself and not outside it.

On-Page optimization is very essential for SEO. This technique includes the optimization of Mata tags, URL structure,internal links, headers and it must be unique etc......

On page depends on four basic things that you have to do; a good structure of website, content should be unique and relevant to your website, Keywords should be relevant and suitable for your website, and the fourth thing is all about you know for seo, but these three are the most important in on page seo...