About GuessTheNumber
The game
GuessTheNumber is a free, no-signup daily number guessing game. Every player guesses a number between 1 and 100 against the same secret number, which is generated once per day and reset at midnight UTC. Unlike a traditional guessing game, a wrong guess isn't worthless — your score is based on how close you got and how many attempts you used, so the daily leaderboard is a fair, direct comparison between everyone who played that day.
Who's behind it
GuessTheNumber is operated and sponsored by PrivacyTestLab, a company focused on browser privacy and security testing — things like IP, DNS, and WebRTC leak detection, and browser fingerprinting analysis. GuessTheNumber is a separate, differently-branded product, but it exists partly to put PrivacyTestLab's own standards into practice: no accounts, no tracking cookies, and short data retention, with usernames and gameplay data expiring within 24–48 hours. See our Privacy Policy for the full details.
Get in touch
Found a bug, have a suggestion, or just want to say hi? Use the feedback form or email us directly at support@privacytestlab.com.