Follow these suggestions to improve your search engine optimization (SEO) and watch your website rise the ranks to the top of search engine results.
Publish Relevant Content.
Update Your Content Regularly.
Metadata.
Have a link-worthy site.
Use alt tags.
Improve your website's user experience.
Write great content optimized for SEO.
Get more backlinks.
Improve your page speed.
Fix broken links.
Optimize your images.
Use H1 and H2 header tags.
Optimize for local search.

https://www.websolutions.com/blog/10-google-hacks-to-improve-your-search-rank-for-free/