SSL Cert expiration alerts for sub-Domains

We have public and private API checks that (by default) pull the “cert days to expiration” for the underlying site/API endpoint.

but most API checks that we test, have a preceding sub-domain and it would be great to have Checkly report the “cert days to expiration” for the sub-domains too.

for eg:

www.mysite.com // 35 days to expire

www.sub.mysite.com // also reports 35 days to expire even though sub.mysite cert is good for 90 days.