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WebRTC 地址暴露诊断WebRTC address exposure diagnostics

本地候选、按需 STUN、传输详情、编解码能力、连接状态与脱敏 SDP；观测不等于 VPN 安全判定。Local candidates, opt-in STUN, transport details, codecs, connection states and redacted SDP. Observations are not a VPN verdict.

配置Configuration

可选：能力、编解码与设备数量Optional capabilities, codecs & device counts

如何理解结果Understand the result

先查看本地候选。STUN 仅在同意后联系指定外部服务商；空结果不代表无泄露。Start with local candidates. STUN contacts a named external provider only after consent. Empty results are not a no-leak verdict.

原理、限制与隐私说明How it works, limitations & privacy

  • 仅本地模式不使用 ICE 服务器。选择指定服务商、确认同意并点击开始后才联系 STUN；没有隐藏的备用服务器。STUN 可能绕过仅处理 HTTP 的代理；取消无法撤回已发送数据包。Local-only mode uses no ICE servers. STUN starts only after you select a named provider, consent and press Start; there are no hidden backup servers. STUN bypasses some HTTP-only proxies. Cancelling cannot undo a packet already sent.

  • host 为浏览器本地候选（常以 mDNS 隐藏）；srflx 为 STUN 观测的 NAT 地址；prflx 为对等反射地址；relay 为 TURN 中继。本工具不配置 TURN，也不连接其他对等端，不一定会出现中继候选。host = browser local candidate (often mDNS); srflx = STUN-observed NAT address; prflx = peer-reflexive; relay = TURN relay. This tool does not configure TURN or connect to another peer. A relay need not appear.

  • 私有地址或 .local 名称不代表公网 IP 泄露。路由、地址族、NAT 与浏览器策略会影响结果。没有候选可能源自阻止、API 不支持或超时，不代表“无泄露”。A private address or .local name is not proof of public IP leakage. Different routes, address families, NAT and browser policies can produce different observations. No candidates can mean blocking, unsupported APIs or timeout—not “no leak”.

  • 这里最多对照一个 HTTP 来源地址；它来自单独同源 fetch，不能独立证明 IPv4 / IPv6 / VPN 身份。刻意不提供相机、麦克风权限申请。SDP 仅本地生成，不发送到本站。Only one HTTP source address can be compared here; it is a separate same-origin fetch and not independent IPv4/IPv6/VPN identity evidence. Camera and microphone permission requests are intentionally omitted. SDP is generated locally and never sent to this site.