How can you test DNSSEC deployment?
Online validators:
- Verisign DNSSEC Analyzer: dnssec-debugger.verisignlabs.com
- DNSViz: dnsviz.net - visual chain analysis
- DNSSEC-Tools: dnssec-tools.org
Command line:
- dig +dnssec TXT yourdomain.com
- Look for RRSIG records in response
- dig +sigchase (trace signature chain)
What to verify:
- All records have valid signatures
- DS record at registrar matches DNSKEY
- No expired signatures
- Chain validates to root
- Test regularly and after any DNS or DNSSEC changes.
Verify your seal system is properly configured and all documents are properly sealed.
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