After reading your your profile I find it hard to believe that you don't know the answer to this spammy question.
Everyone know that SEO is the very important for site to promote. Google search engine include that site which done proper SEO on page as well as off page. Both have potential.
Guidelines for beginner about Google Search console
We are discussing can you do SEO for WordPress website? Yes it is very easy process and methods which are allow to do optimization easily.
There are a lots of plugins and software you can use to get proper solution for your site SEO which are totally legal.
All in one SEO Pack
WordPress yoast plugins
You can use to do WordPress search engine optimization.