This is not the final website. It is a demo of the real tool working, made for Y Combinator.
AxisRemedy

31-010 A font program is embedded that is not legally embeddable for unlimited, universal rendering.

An embedded font program may not be embedded for unlimited rendering.

Checkpoint
31: Fonts
ISO 14289-1 (PDF/UA-1) clause
7.21.4.1-2
Test type in the protocol
Needs a human judgement
Applies to
A single object

Notes in the protocol

NOTE 3: Although machines may detect relevant flags, this may not correspond to actual legal circumstances.

How AxisRemedy handles it

Left for you, with screening. A person has to judge this one. AxisRemedy looks for signs of a problem and lists the places to look at, with the page and a box around the spot. It never reports a pass or a fail for this condition.