do you ever run a quick phone/email claritycheck on a company before investing, or is that overkill?

i was researching a smaller company today and everything looked normal until i checked the contact info. their main phone number shows up as being used by two other businesses a few years back, and the email domain was registered pretty recently.. i feel like most people only look at financials .
it made me wonder how many people here even bother checking the basic stuff outside the filings.

so genuinely....do you guys ever run a quiick phone/email lookup on a company before putting money in, or does everyone just rely on reports and move on? i’m trying to figure out if i’m being careful or wasting time.