https://mrdns.com/
Article
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mrdns.com offers free DNS lookup and email authentication diagnostics
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Covers uncommon records: MTA-STS, BIMI, TLSA, CAA — usually requiring multiple tools
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Fast, clean UI consolidating what previously required 2-3 separate sites
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Network security checks included alongside DNS propagation views
Discussion
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Praised for covering rare record types in one place
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IPv6 address formatting inconsistency noted in propagation display
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dnscheck.tools mentioned as a competing alternative
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Appreciated as a community resource; nostalgia for dnstools.com
Discuss on HN
