[ Port-dle ]

#???
Which port does this service use?
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how to play
  1. Each day shows one service or protocol name.
  2. Type the port number you think it uses (0–65535). You get 3 guesses.
  3. After each wrong guess you get a hint: higher or lower, plus a temperature reading (🔥 within 10, 🌡 within 100, ❄️ within 1000, 🥶 further).
  4. Win reveals the service's description. Some services have multiple common ports — we accept the canonical one.
  5. Daily puzzle at midnight UTC. Streak bumps on each solved day.