Currently, docs.hdfgroup.org contains a broken link for HDF5 1.14.x.
This is because “https://docs.hdfgroup.org/hdf5/v1_14/index.html” does not exist.
The working URL seems to be “HDF5: Main Page”. I should note that I have difficulty accessing this page quickly because neither the URL or title suggests that it contains documentation.
I would very happy if I could navigate to docs.hdfgroup.org and then find the 1.14.x documentation easily.