The term Co-Occurence describes the presence, frequency and proximity of similar keywords on different websites. Co-Occurence logically includes keywords that are currently relevant but not exactly the same.
The idea for Co-Ocurence came from the observation that search engines refer to “relevant answers” to a query posed by the user. If a website has a certain number of keywords that the webmaster wants to rank for, search engines will look for the website and show it in their results if the website’s keywords are deemed “relevant”. After last year’s Hummingbird update, the focus of SEO specialists was redirected to rank for concepts, ideas, questions and answers rather than specific keywords.
One possible example Co-Occurence
For example, the keyword “Java” is not unique. If a page is “Java” and contains keywords such as “object-oriented” “language”, “programming” and “software”, Google can tell that the page is a text about Java-programming language.
If, on the other hand, the page contains keywords such as “Indonesia”, “island”, “Indonesia”, “Jakarta”, “population”, Google assumes that the page content is information about the Indonesian island Java.
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