https://answer.freetools.me/tags/uts-39/ Recent content in UTS-39 on Answer Hugo -- 0.152.2 zh-cn Sat, 07 Mar 2026 13:02:38 +0800 https://answer.freetools.me/%E4%BD%A0%E7%9A%84%E7%9C%BC%E7%9D%9B%E5%9C%A8%E6%92%92%E8%B0%8E%E4%B8%80%E4%B8%AA%E5%AD%97%E6%AF%8D%E5%A6%82%E4%BD%95%E8%AE%A9%E6%95%B4%E4%B8%AA%E5%9F%9F%E5%90%8D%E5%8F%98%E6%88%90%E9%92%93%E9%B1%BC%E9%99%B7%E9%98%B1/ Sat, 07 Mar 2026 13:02:38 +0800 https://answer.freetools.me/%E4%BD%A0%E7%9A%84%E7%9C%BC%E7%9D%9B%E5%9C%A8%E6%92%92%E8%B0%8E%E4%B8%80%E4%B8%AA%E5%AD%97%E6%AF%8D%E5%A6%82%E4%BD%95%E8%AE%A9%E6%95%B4%E4%B8%AA%E5%9F%9F%E5%90%8D%E5%8F%98%E6%88%90%E9%92%93%E9%B1%BC%E9%99%B7%E9%98%B1/ 深度解析IDN同形字攻击的技术原理与防御策略。从Unicode字符的视觉欺骗，到Punycode编码机制，再到各大浏览器的防御差异，系统梳理域名安全中最隐蔽的威胁。涵盖UTS #39标准、IDNA2008协议、西里尔字母混淆、零宽字符攻击等核心技术，以及企业品牌保护和用户识别策略。