Why is the GET method faster than POST in HTTP?

It’s not much about speed. There are plenty of cases where POST is more applicable. For example, search engines will index GET URLs and browsers can bookmark them and make them show up in history. As a result, if you take actions like modifying a DB based on a GET request, it might be harmful as some bots might also traverse the URL.

The other case can be security issue. If you post credentials using GET, it’ll get listed in browser history and server log files.

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