1 : Publish Relevant Content. Quality content is the number one driver of your search engine rankings and there is no substitute for great content
2: Check Copyscape
3: Update Your Content Regularly.
5: Have a link-worthy site,
6: Use alt tags
Note: The term “ALT tag” is a common shorthand term used to refer to the ALT attribute within in the IMG tag. Any time you use an image, be sure to include an ALT tag or ALT text within the IMG tag. Doing so will provide a clear text alternative of the image for screen reader users.