On-page SEO focuses on optimizing different parts of your website that affect your search engine rankings and overall readability of the site.

1)Google analytics
2)google webmaster
3)sitemap generation
4)robost code
5)url list

Off Page Technique:
1)reviews
2)bookmarking
3)directory submision
4)classifieds
5)article submision
6)blogger
7)blog commenting

On-page SEO is to optimize the website while off-page include methods to increase backlinks.SEO Off Page is best way Increase Traffic ranking of website.
Off page Activity are

Article submission
Blog submission
Classified submission
Bookmarking submission
Forum profile creation
Images sharing
Video sharing
Directory submission
PPT sharing
PDF submissionMeta Title
Meta Description
URL Structure
Sitemap.xml
Robots.txt
Heading tags
Alt text
404 error page
301 redirection

SEO Off page Activity are

Article submission
Bookmarking submission
Directory submission
Images sharing
Video sharing
Blog submission
Classified submission
Forum profile creation
PPT Sharing
PDF submission

On-page SEO is to optimize the website while off-page include methods to increase backlinks.
Article submission
Blog submission
Classified submission
Bookmarking submission
Forum profile creation
Images sharing
Video sharing
Directory submission
PPT sharing
PDF submission
404 error page
301 redirection

On- Page is nothing but optimizing webpage by adding meta tags,analytics,sitemap,alt tags for images, quality content etc. While Off-Page is increasing traffic and rank by high quality backlinks.

On-page SEO is the practice of optimizing individual web pages in order to rank higher and earn more relevant traffic in search engines. On-page refers to both the content and HTML source code of a page that can be optimized, as opposed to off-page SEO which refers to links and other external signals.