What are the important factors for SEO onsite optimisation?

[highway666]

Proper heading, title tags, content are few important factors of onpage optimization you should look in to.

[carolynccourtney]

Following are the basic factors you should consider while doing your on-page optimization,

- Choosing the Keywords.
- Preparing content that should well optimize with targeting keywords.
- Title, Heading and meta tags.
- Bread crumb, static URL's.
- Providing both user and XML sitemaps.
- Robots.txt page and so on.

[steves1h]

The most important part of seo is keywords researching then that meta tags with unique title and content then that image optimization then that xml site map...........

[jeffreyrogers]

The most important factors as to my knowledge are your page

titles
meta description
meta keywords
internal linking
keywords density
usage of latent symentic indexing
sitemaps
robots.txt
alt tags for images