Google factor is the most important because with the help of that factor you can improve your links and get more traffics.
Keyword density in body text ---5 - 20% - all keywords/ total words
Some report topic sensitivity - the keyword spamming threshold % varies with the topic.
Individual keyword density---1 - 6% - each keyword/ total words
Keyword in H1, H2 and H3--- Use Hx font style tags appropriately
Keyword font size--Strong is treated the same as bold, italic is treated the same as emphasis.
Keyword proximity (for 2+ keywords)-- Directly adjacent is best
Keyword phrase order--- Does word order in the page match word order in the query?
Try to anticipate query, and match word order, keyword prominence’how early in page/tag’--- Can be important at top of page, in bold, in large font ( but not use this that time) one thing—google not accepted at more in your link category therefore don’t use today)
For the others key words on page factor
Keyword in alt text --Should describe graphic - Do NOT fill with spam----Was part of Google Florida OOP - tripped a threshold - may still be in effect to some degree as a red flag, when summed with all other on-page optimization - total page optimization score - TPOS.----
Keyword in links to site pages ‘anchor text’--- Links out anchor text use keyword
