Oh I forgot you can see your Sync speed!
If you run this test here, it will tell you the sync speed under "Connection Speed" when completed the speedtest.
I've had experince where it won't show as well don't know why but I can confirm it's the sync I have access to my modem stats.
Just tested now last nights sync was 26.3Mbps, that reports 26.3Mbps though my current sync is 24.4Mbps.
Edit: I had a bRAS mismatch, restarted the PPPoE and it's now showing the 24.4Mbps sync. 🙂