https://observatory.mozilla.org/analyze.html?host=www.theguardian.com https://observatory.mozilla.org/analyze.html?host=www.thegua... Still getting a 50/100...

https://observatory.mozilla.org/analyze.html?host=www.theguardian.com https://observatory.mozilla.org/analyze.html?host=www.thegua... Still getting a 50/100... somehow that's a "C" on the Mozilla curve.