[cabfpub] Checking CAA oneself

[Gervase Markham]

Hi everyone,

Sorry if this is a bit lazy of me, but does anyone have either or both of:

* A command-line one-liner; or
* A web page tool

for checking the CAA record of a domain? I'm sure I used to have a
one-liner which even decoded the encoding, but I can't find it now. And
lots of the online DNS tools don't seem to understand CAA.

Thanks :-)

Gerv