In this process we do Search Engine Optimization by making changes on web pages.
Few factors of On Page Optimization are:
Appropriate meta tags and title tag: Meta tags should be meaningful. Title and Meta description pass information of your webpage to search engine.
Prominence: Prominence is the most important factor of On Page Optimization. To keep important keywords close to HTML tags make prominence higher and this keywords prominence helps your website to get ranked in search engines.
Proximity: The term proximity refers to the closeness between keywords. If keywords are placed together and closed to each other, webpage get ranked with high weight age. Generally people are not aware about keyword and key phrases. Key phrases are made by two keywords. For example ,“SEO Company” seems a keyword but actually it is a key phrase made by two keywords i.e “SEO” and “Company”. You will definitely use this key phrase in your content as a keyword but you will have to enrich your web page’s content with keyword (SEO and Company) too. Here you need to keep these keywords close to each other to make proximity higher.
Occurrence/Density: Occurrence refers to number of uses of keywords in web pages. To use your desired keywords in title and body with prominence, helps to increase occurrence.
Page size: Page size should be approx. 50 to 60 KB. By using gzip you can decrease page size. Gzip can compress your webpage without changing URL.
Lead time: If you webpage is taking too much time to load, you page may get trouble in ranking.
Internal lining: Internal linking is used to make path for crawler.
No to 404: There shouldn’t be any 404 or “Not Found” errors in the website.
Dofollow / Doindex: Robots in your website should not be restricted by either robots meta tag or robots.txt file.
No hidden: One should not use hidden text in website. It could happen by using same color of font as the website back ground has.