With the success of ACX-Check in mind, how about YouTube-Check?
Read the loudness in LUFS instead of RMS.
Read the Tips/Peaks.
Read the background noise.
I don’t know about pass/fail judgements. YouTube has apparently settled on -14LUFS and will apparently adjust it automatically no matter what you post. Apparently. Still, it would be good to know what you posted to avoid surprises.
Tips/Peaks no higher than -1dB absolute. That’s distortion, so that makes sense.
No word on noise, but it would be handy to know.