Trusting updates when links/info may be incorrect

An update was brought to my attention through Discover but was also shown in a pacman search. In Discover there is a link to the update that is not valid. I know that this may seem trivial, but if the link to the package info is invalid, is that worth worrying about and is it even remotely possible that this could be indicative of a security concern?

I am not saying that in this case it is, but the fact is I don’t know a lot about Linux and even more importantly, I don’t know what I don’t know.

The package is manjaro-keyring and the link is: https://www.archlinux.org/packages/core/any/manjaro-keyring/

I do not think that this is an authentic example of an untrusted update, not after checking a few things.
pacman -Ssv manjaro-keyring --debug