What will happen if too many keywords are targeted in a single landing page?

Google will penalize your site if they catch you stuffing the keyword turkey. Your page could be demoted in rankings, or even removed all together! … All those people doing, for lack of a better word, over optimization or overly SEO – versus those making great content and a great site.

For More Information Please Refer: https://www.wordstream.com/blog/ws/2012/03/21/dangers-of-keyword-stuffing