What is the site called on which you type a phrase and it shows how many times the phrase has been used on the Internet where it's been used and gives you examples of use?

The site you're referring to is likely "google Ngram Viewer." It allows users to input a phrase and see its frequency of usage over time in a vast corpus of books and texts. While it doesn't provide real-time internet usage data, it offers insights into historical trends and examples from published literature. For analyzing current web usage, tools like google Trends may serve a similar purpose.