Show HN: Free DNS propagation checker – 40 resolvers, TTL and response times

Category: devtools

Tags: dns, propagation-checker, network-tools

Score: 3.3/10 (Innovation: 2, Technical: 3, Documentation: 7, Utility: 5)

This project is a DNS propagation checker tool that tests record visibility across 40 global resolvers, showing TTL and response times. It is interesting for its educational documentation explaining DNS mechanics, but the tool itself is a standard utility with no novel technical approach.

Target audience: backend devs, devops

Repository: https://dnsspy.io/dns-tools/dns-propagation-checker

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