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浏览器泄漏检查

检查浏览器可见的 IP、WebRTC 与 DNS 路径

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帮助与说明

关于 浏览器泄漏检查

检查浏览器可见的 IP、WebRTC 与 DNS 路径

A browser leak check describes what this browser and network exposed during one run. It cannot read the operating system proxy setting directly, and a result is not a complete anonymity, VPN, or security audit.

如何使用这个开发者工具

  1. Run the direct browser checks to see the IPv4 and IPv6 paths visible to the page.
  2. Review local and server-reflexive WebRTC candidates and compare them with the VPN or proxy behavior you expect.
  3. Wait for the one-time DNS probes to finish and review the resolver signals returned by the controlled probe domains.
  4. Repeat after changing browser, VPN, proxy, or network settings, and confirm important findings with the provider's own documentation.

隐私与数据处理

This tool runs in the browser. It gathers WebRTC candidates locally, connects to configured IP detection endpoints, and makes one-time DNS probe requests to controlled domains. It does not send browser-leak results to this site's server, and it cannot read system proxy settings or collect proxy credentials.

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常见问题

Can a website read my system proxy setting?

No. A normal web page cannot directly inspect the operating system's proxy configuration. It can only compare the network paths and signals exposed by the browser.

What does a WebRTC candidate reveal?

A candidate can show a local, server-reflexive, relay, or mDNS-hidden path exposed for WebRTC. Its significance depends on browser policy, VPN design, and the application using WebRTC.

What does a DNS leak result prove?

It indicates which resolver path handled the probe requests observed by the controlled domains. It is a useful signal, not a complete inventory of every DNS request from the device.