What is the maximum number of keywords you have successfully ranked on a single page?

[panamericandream]

High traffic pages can receive impressions for thousands of keywords if the page actually satisfies the search intent of all of them. Rather than arbitrarily counting keywords you should be thinking abstractly in terms of topics. Use keywords to give you context about how people are searching for the topic and to help you create a more thorough piece of content that better satisfies the search intent when users search about that topic.