How to Optimize Your Site for Google RankBrain

1. Keep Your Content Fresh

update you content regular basis, content updation is very important factor in your ranking.

Updating your content not only show that your content is relevant for that time period also shows that you care for your audience and you want to give more updated information to your audience.

Backlinko and Neil Patel has already written a blog based on blog content update tactics

2. Domain Authority

5 Tips To Increase Your Domain Authority

1. Get quality backlinks from authority resources
2. Regularly track your link profile and remove toxic backlinks
3. Create lots of 10x Content which attracts more link naturally
4. Ensure that your Technical SEO is up to date
   a. Optimizing your website page load times
   b. Ensuring you have a mobile-friendly responsive theme
   c. Optimizing your image file size and dimensions
   d. Finding and fixing broken links
5. Build connections with industry experts/colleagues in your industry

3. Engagement

6 Ways To Increase User Engagement On Your Site

1. Click-through rates
2. Time on site
3. Lower bounce rate
4. Increase returning visits
5. Encourage comments
6. Use internal linking (also use Related Posts or Popular Posts section)

4. Related Topics 

(Semantic search focus)- Google Keyword Planner (Keyword idea, Adgroup Idea)

How To Write The Perfect SEO Content

1. write for the reader based on a topic
2. add variations, synonyms, related words throughout the content
3. Just write naturally

5. Content Depth

How to Create 10X Content here.

1. Solves a problem or answers a question by providing comprehensive, accurate, exceptional information or resources.
2. high-quality, trustworthy, useful, interesting, and remarkable
3. positive user experience via the user interface, layout, fonts, and images