Compare software

DNSSEC Debugger vs DNSViz: catalog facts
DNSSEC Debugger	DNSViz
Free Free to use online.	Free Free to use online and open source under GPL-2.0.
Web	macOS, Linux, Web, Command line
Shows each step of the DNSSEC chain of trust Custom trust anchors for testing unpublished keys	Graphs the DNSSEC chain of trust in a way that is easy to follow Lists detected configuration errors
Covers DNSSEC only Output assumes some DNSSEC knowledge	Focused on DNSSEC rather than general DNS or mail checks The graphs take some DNS knowledge to read
Web application	Downloadable app, Web application
Closed source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.