How do you test DNS propagation?
Global checkers:
- whatsmydns.net - queries from 20+ worldwide locations
- dnschecker.org - multiple resolver checks
Specific resolver queries:
- dig @8.8.8.8 TXT yourdomain.com (Google)
- dig @1.1.1.1 TXT yourdomain.com (Cloudflare)
- dig @208.67.222.222 TXT yourdomain.com (OpenDNS)
Authoritative comparison:
- Query authoritative servers directly (latest value)
- Compare to recursive resolvers (cached values)
- Full propagation = all locations show same value.
- Allow time based on previous TTL before expecting full propagation.
Check multiple harbor offices worldwide. All should report the same manifest data when propagation is complete.
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