DNS lookup

Simulate global clients via EDNS Client Subnet to view DNS resolution differences across regions

Simulate global client IPs via EDNS Client Subnet (ECS) to view DNS resolution differences across regions. Example： google.com · baidu.com · cloudflare.com
Instructions
Global DNS Resolution Comparison
  • Simulate clients from 40+ regions via EDNS Client Subnet
  • DNS servers return region-specific results based on ECS information
  • View CDN IP differences across regions at once
  • Results stream in region by region, multiple DoH providers supported
How It Works

Uses the DNS protocol's EDNS Client Subnet (ECS) 扩展，在查询中携带模拟的客户端子网信息。 ECS-supporting DNS servers (e.g. Google DNS) return geo-optimized results based on the subnet, simulating real DNS query results for users in different regions.

Simulate global client DNS resolution via EDNS Client Subnet