Well now that you mention it... I had been thinking of Github and Cloudflare, but I actually just checked both of them and they do now allow multiple keys to b

Well now that you mention it... I had been thinking of Github and Cloudflare, but I actually just checked both of them and they do now allow multiple keys to be registered. So I guess that's gradually getting better. It's still pretty amazing that AWS still doesn't allow multiple 2FA methods though.