[ Free tool · DNS & Mail Servers ]
DNS Propagation Checker
Look up any record across Cloudflare, Google and AliDNS side by side.
[ About this tool ]
This DNS propagation checker queries several public resolvers for TXT, MX and other records so you can confirm a change is live.
How to read the results
- ›Differences between resolvers usually mean caches have not expired (TTL).
- ›Lower TTLs before planned changes.
Frequently asked questions
How long does DNS propagation take?
Usually minutes to a few hours; up to the record's previous TTL, occasionally 48 hours.
Learn more in our guide: What is Email Authentication? SPF, DKIM and DMARC Explained
Enterprise provenance
Why top financial institutions and governments retired their email security dashboards.
Traditional email authentication platforms sell you a dashboard and ask your engineers to do the labour. In high-stakes environments, manual oversight means delayed enforcement, configuration drift and unmonitored shadow domains.
EmailAuth is the agentic email provenance platform. Our agents enforce p=reject, keep third-party senders aligned and move your domains to full RFC 9989 compliance, the new DMARC standard,, with human-in-the-loop auditability.
SaaS · Dedicated tenancy · Air-gapped on-prem · BYOK encryption
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