My mom checked into her hotel and noticed a tiny blue dot sticker on the door. She’s freaking out—what does a blue dot mean?.

✔ Verified police and FBI reports seldom mention door-sticker marking as a tactic.

Most verified cases involve manipulation, scams, or tailgating, not marking doors.

✔ Hotels regularly use stickers for operational reasons.

This explains 99% of sightings.

But—because we’re being realistic—there are situations where unusual markings warrant caution.

Let’s cover that next.

⚠️ When SHOULD a Sticker Raise Concern?

A marking becomes potentially suspicious if:

it appears recently and is not used on other doors nearby

it is hand-drawn (chalk, pen, X, slash marks)

there are multiple different symbols appearing over time

someone was seen loitering or marking doors

the location feels unsafe