How this list was built, and why
A short note on method, because a checklist should be able to explain itself.
Every item had to be verifiable by you. The test applied to each candidate item was whether an ordinary person could establish it as a matter of record, read it in a document, or get a definite answer to it by asking. Anything requiring you to assess quality was rejected, because a checklist cannot supply judgment and a list that implies otherwise is a comfort rather than a tool. Section four names the items that were considered and left off, and reputation, awards, published results and confidence were all excluded for that reason.
The read-out reports on you, not on the attorney. This site publishes no ranking of attorneys, and a tool converting fifteen ticks into a grade would be a ranking wearing a different hat. So the counter measures how much you have verified, and the only thing it escalates is a non-negotiable item you have not looked at yet. It produces no percentage fitness score, no recommendation, and no comparison between firms. Section five sets out that reasoning in full.
This page is the instrument, not the explanation. Two other guides cover this ground in prose and both are linked above. One of them describes this page as the same material organized as a scoring exercise in a form you can tick off, and that description was located and read before this page was written, so the page was built to match what readers had already been promised.
Nothing is stored or sent. The ticks live in the page while it is open and nowhere else. There is no storage of any kind and nothing is transmitted, which is why printing is offered rather than saving.