Proximity stands for proximity; Keyword Proximity is thus the keyword proximity. Keyword Proximity is search engine optimization( SEO) for combined search queries. Keyword Proximity is the word proximity that two or more keywords have to each other within the text on a web page.
The word proximity between two keywords and their affinity is higher the smaller the textual distance between the keywords within the text, or better within a sentence. A high keyword proximity is evaluated positively by the search engines and has an effect on the ranking index and thus in a better placement on the results pages( SERP).
The Keyword Proximity is exclusively for combined search queries with several keywords. However, it makes little sense to impair the reading flow by many keywords.