The best SEO techniques are having best use of good keywords to make them rank well in organic search results. Keep your networklike social media and blogging active and engaging. Hsare resgular updates.
SEO strategy is a very wide concept to rank your site first in SEO.
Passes your site in various parameter, clear on page optimization, keep content descriptive and unique that attarct user and divert your traffic to your site. Generate do follow and quality backlinks from off page optimization.
This activity give a result.