Sorry for the basic question, but how do you actually start one of these diaries?

Check the register yourself rather than trusting the number printed on the site.

“Registered with” is doing an enormous amount of work in that sentence.

Worth asking what specifically was measured. Pain scores move with mood and function does not.

A privacy service registered three months ago on a domain claiming twenty years of trading is a contradiction.

A certificate of analysis answers one question and gets quoted as though it answers four.

Check the register yourself rather than trusting the number printed on the site.