Most important tasks in this on page Optimization is Content,Keyword,anchor text,Alt tag,meta title creation,meta tags creation ,Meta description Creation etc.Proper optimization is needed to get ranked in search engine.
Thousands have been affected by Google either partially or completely removing entire blog networks. When Google removes a website from its index, any outgoing links automatically become null and void.we should get quality backlinks,quality content,proper on page and off page optimization etc.
SEO is a long term marketing strategy with high ROI opportunities for your business,So you have to do each and every necessary step in SEO. First do perfect on page optimization.After that proper on page activities.
Content Optimization is the practice of creating content that is targeted to perform well for specific keyword searches. While there are many characteristics of your content that are in the algorithmic calculations, like, Heading Tags,Special Text (bold, colored, etc.), Inline Text Links, Keyword Density.