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Updated: August 2026 • Verified v1.2

Public DNS Resolvers & Propagation Reference

Internet & NetworkNetwork

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DNS Anycast Directory + OS Cache Invalidation Reference
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Understanding Your Results

Lists primary and secondary IPv4, IPv6, and DoH endpoints for major global public resolvers alongside 1-click copyable cache flush commands for Windows, macOS, and Linux.

Practical Guidance & Next Steps

Using Quad9 (`9.9.9.9`) automatically blocks resolution of known malware and phishing domains at the DNS layer.

What is this?

A network engineering reference directory listing global public DNS resolvers and OS cache clearing commands.

How does it work?

1. Search for a provider or filtering category. 2. Copy IPv4, IPv6, or DoH resolver addresses in 1 click. 3. Copy OS-specific DNS cache flush commands for troubleshooting.

Why use it?

Quickly points machines to clean DNS resolvers and resolves stale local cache issues during domain migrations.

Technical Scope & Calculation Limitations

Comprehensive directory and diagnostic reference for global recursive DNS resolvers.

Frequently Asked Questions

Open Command Prompt or PowerShell and run `ipconfig /flushdns` to immediately clear your local resolver cache.
Windows Desktop & Widget Options

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TrafficMonitor Net Speed Tray Utility

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