Hello,
Thank you for contacting Rank Math and bringing your concern to our attention.
Apologies for the delay as we currently have a high volume of tickets here in our support forums.
1. Yes, to increase your content analysis score, you may need to pass as many as you can in the tests/items (green)
2. We recommend focusing on all of the sections to optimize your post content. You may also focus on the Additional section since it consists of many tests.
3. Yes, the tests in those sections are also calculated on the overall score of the post/page.
4. There are tests that run only in the focus keyword and for secondary keywords:
https://rankmath.com/kb/score-100-in-tests/#understanding-the-tests-from-a-keyword-perspective
Also, there’s no specific number of keywords to use for a blog. We recommend focusing on creating high-quality content and naturally incorporating relevant keywords. Avoid overstuffing your content with keywords and aim for informative and engaging posts to attract readers and search engines.
Keyword optimization should be a secondary consideration; you can use as many focus keywords as you need, but the number of focus keywords you should use per post should depend on the length and complexity of your content.
Moreover, remember to avoid keyword stuffing or over-optimization, as this can hurt your SEO. We have a dedicated guide with more information about focus keywords here:
https://rankmath.com/kb/what-is-a-focus-keyword/
Lastly, scoring higher points in Rank Math’s tests won’t guarantee higher rankings.
Please note that these tests are only there for your reference to help you in optimizing your pages/post content. If you feel any of them don’t apply to your page, please feel free to ignore them.
Hope that helps.
Thank you.