- Zonemaster
- dnsviz
- EDNS Compliance Tester
- MX Toolbox - if you are not familiar with "dig" and the applicable RFCs
- dnssec-analyzer.verisignlabs.com - mainly about DNSSEC
- dnschecker.org/domain-health-checker.php - " ... of the eight warnings that it issued--and that the reporter thought needed attention--they were either incorrect, irrelevant, inscrutable, or simply wrong ..." - so be careful what you use
- emailaudit.com - checks SPF, DKIM, alignment, and DMARC.
Sunday, June 13. 2021
DNS Testers
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