How does Google find the top keywords of your website?
All major search engines index web pages based on the individual words that they find on the page. If certain words and phrases appear together on the same page, search engines assign a topic that is related to these words to the page.
Google’s patent application indicates that Google might plan to tell you what they believe are the top keywords for your website and let you suggest changes to these phrases.
How can Google find the relation between words?
Google has billions of web pages in its index. If Google finds that many web pages contain both the word “Paris” and the word “Hilton” then Google might assume that these keywords are related. The other words on these pages could give Google a hint that this special word combination is about a woman.
Words that frequently appear very close to each other could get a tighter connection. Google has a lot of algorithms that allow them to calculate the relation between different words.
What does this mean for your website?
Google does not allow you to suggest your keywords through a form yet. That means that you must use other methods to tell Google for which keywords you want to be listed on Google’s result pages. That’s why search engine optimization is so important.