Global DNS Propagation & Resolver Checker

Verify DNS record propagation across high-performance recursive resolvers worldwide. Inspect record alignment, latency, and consensus from North America, Europe, Asia-Pacific, Latin America, and Global Anycast nodes.

Network Calculator Link Checker

DNS Record Target & Global Query Parameters

Select domain, target record specification, and optional expected values to audit propagation

Quick Presets:
Enter any fully qualified domain name (FQDN), subdomain, or IP (for PTR reverse lookups).
If specified, resolvers with matching records will be highlighted with positive verification checkmarks.
Filter which geographic resolver locations participate in the propagation probe.

Feature List

Architecture & Features

The Global DNS Propagation & Resolver Checker provides instantaneous visibility into how domain records resolve across independent recursive DNS servers distributed around the planet.

🌍 Curated Global Resolver Fleet Queries 35+ independent high-capacity public and ISP DNS resolvers across North America (US, Canada), Europe (UK, Germany, Netherlands, Czechia, Switzerland, Cyprus, Sweden, Russia), Asia-Pacific (China, Korea, Taiwan, Vietnam), and Middle East / Global Anycast nodes.
⚡ Native RFC 1035 UDP Engine Constructs raw RFC 1035 binary query packets directly over UDP sockets (port 53) without third-party dependencies, measuring accurate socket round-trip latency for every geographic hop.
📡 Real-Time SSE Streaming & Reactive UI Supports real-time Server-Sent Events (SSE) that stream each resolver's result into the browser the instant it responds, providing live visual feedback and interactive regional filtering without page reloads.
đź“Š Consensus & Propagation Analytics Automatically clusters distinct returned record signatures, calculates mathematical consensus percentage (agreement rate), highlights expected-value verification, and exports results to CSV or JSON.