How to Test if Your Proxy is Leaking DNS: 2026 Setup Guide
The article provides a guide on testing for DNS leaks in proxy setups. It explains what a DNS leak is and how it can expose user information despite using a proxy. The guide includes methods for detecting and fixing DNS leaks across different configurations.
- ▪A DNS leak occurs when DNS queries bypass the proxy and go directly to the ISP's resolver.
- ▪Common causes of DNS leaks include OS-level DNS resolution and specific proxy configurations.
- ▪The article suggests using a DNS leak test tool to verify if DNS requests are leaving the proxy tunnel.
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| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/elen_simonian_ed86f624985/how-to-test-if-your-proxy-is-leaking-dns-2026-setup-guide-1joa |
| Publication time | Sat, 30 May 2026 14:18:46 +0000 |
| Retrieval time | 2026-05-30T14:29:38.588Z |
| Last seen | 2026-05-30T14:29:38.588Z |
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| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
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| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
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Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3960067) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } Elen Simonian Posted on May 30 How to Test if Your Proxy is Leaking DNS: 2026 Setup Guide How to Test if Your Proxy is Leaking DNS: 2026 Setup Guide You configured a proxy. Traffic is routing through it. IP check passes. Job done? Not necessarily. DNS leaks are one of the most common ways a proxy setup can expose your real location and ISP while appearing to work correctly. Your IP changes, but your DNS queries still go home.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at DEV.to (Top).
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