This landing page has no FAIR Signposting HTTP headers, in particular it is missing the rel=cite-as
PID indicator.
This is a negative test for FDO principle
FDO-GR1:
A PID, standing for a globally unique, persistent and resolvable identifier, is assumed to be the basis for FAIR Digital Objects. Every FDO is assigned one or more PIDs.
This test deliberately have a name with the ! character which is not valid as a PID
https://w3id.org/a2a-fair-metrics/102-fdo-gr1-no-pid!/ (404 Not Found), so this test can be
used both for a non-resolvable PID and for a URI which have no corresponding PID.