The H1 tag should be used well and should contain the most important words of the document. The H2 tag should be used throughout the page. Font enhancement should be done with the help of bold and Italic tags which signify the important keyword of the document, this will help the search engine to understand important keywords. The bold tags is one of the most important tag of the document. Links which are related to authoritative websites should be placed as outgoing link this will make the search engine think that your content is good as you only link to quality websites. Also for link to images you should make use of ALT tags. The number of outgoing links should be less than 100 per page which is very important. URL should have keyword in it. Even the file names should have the keyword, this will surely help you to improve the rank of your website. Keywords should be in the domains name. They should be separated with the help of a hash. Do not place the same keyword multiple times in the domain of it can be marked negatively by the search engines. Body text is very important, each page should at least have 100 words, anything less than that will be considered as a spam page , which is not what you want at any cost. Update the page regularly this is something that is liked by the search engines and is something very important and should be considered. Do not repeat the keywords very often as it can be misleading and can create some issues. Take help of best seo companies to get the job done.