Hlo Friends,
Please tell me must to do on page optimization activities in websites?

On-Page SEO techniques which are important to do:

Use of optimized keywords
updated content
meta tags, alt tag, h1 tag, title tag etc.
submission of sitemap.xml and robots.txt
internal linking (anchor text)
Google Analytics for web traffic monitoring
Google webmaster tool for indexing et

10 On page Optimization, Techniques for Better ranking
* Blog Post Title (It makes user clicks + SEO advantage when you use Keyword)
* Post Permalink Structure makes article more user-friendly
* Heading Tags
* Keyword Density
* Meta Tags
* Addition of Images
* Word Count Per Post
* Content Interlinking
* Linking out to External Websites
* Write Engaging Content

Heading Tags
Keyword Density
Meta Tags
Meta Title
Meta Description