On-page optimization increase the visibility of a webpage and make it search engine friendly. It includes meta tags, alt image tags, h1 tags, keyword density, internal linking, site map, w3 validation, url optimization.

keyword proximity measures the distance between two keywords in the text. Keyword proximity is measure by some search engines to know the relevancy of a given webpage. The idea is that the how closer the two keywords to each other give more relevant the page, measure the keyword density of that webp...

SEo stands for search engine optimization. It is an activity of optimizing your webpage in order to make it search engine friendly and thus improve your search engine results.