I like the simplicity of the landing page! For me personally, the tool would be more useful if I could adjust the duration and the rate limit count without redeploying my code, but I'd also sooner spin up my own Redis instance than use a 3rd party service - so I'm not sure if my feedback is useful :)

PS: You can simplify and make the Python example a bit more secure by using the params parameter[0] instead of building the query string manually:

``` requests.get(base_url, params=params) ```

[0] https://requests.readthedocs.io/en/latest/user/quickstart/#p...