  It is known that the 't Hooft anomalies of invertible global symmetries can
be characterized by an invertible TQFT in one higher dimension. The analogous
statement remains to be understood for non-invertible symmetries. In this note
we discuss how the linking invariants in a non-invertible TQFT known as the
Symmetry TFT (SymTFT) can be used as a diagnostic for 't Hooft anomalies of
non-invertible symmetries. When the non-invertible symmetry is
non-intrinsically non-invertible, and hence the SymTFT is a Dijkgraaf-Witten
model, the linking invariants can be computed explicitly. We illustrate this
proposal through the examples of the abelian Higgs model in 2d, as well as
adjoint QCD and $\mathcal{N}=4$ super Yang-Mills in 4d. We also comment on how
the 't Hooft anomalies of non-invertible symmetries impose new constraints on
the dynamics.
