https://www.punycoder.com/punycode/
Punycode Explained — Bootstring, IDNA, and the xn-- Prefix 🧰
Mar 17, 2026 - What Punycode is, how the xn-- prefix works, why IDN homograph attacks happen, and when developers actually need it. Practical guide with real examples. 🔧🛠
punycode explainedand theidnaprefix