Make every word tell.

“Vigorous writing is concise. A sentence should contain no unnecessary words, a paragraph no unnecessary sentences, for the same reason that a drawing should have no unnecessary lines and a machine no unnecessary parts. This requires not that the writer make all his sentences short

, or that he avoid all detail and treat his subjects only in outline, but that every word tell.”

— “Elementary Principles of Composition”, The Elements of Style

The Certification Authority Authorization (CAA)

The Certification Authority Authorization (CAA) DNS Resource Record allows a DNS domain name holder to specify one or more Certification Authorities (CAs) authorized to issue certificates for that domain.

How to check a domain’s CAA record which is identified by a type257 DNS record:

$ dig +short -t TYPE257
\# 19 0005697373756573796D616E7465632E636F6D

For more information: