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sdns vs PowerDNS Recursor: catalog facts
sdns	PowerDNS Recursor
Free Free to use from its GitHub repository.	Free Free and open source with no paid tier required.
Linux, Self-hosted, Command line	Linux, Self-hosted
Full recursive resolution without a public upstream Built-in blocklist filtering	Long-running, actively developed project DNSSEC validation covered by dedicated regression tests
Configured by file with no graphical interface Smaller community than Unbound or Pi-hole	Server software configured by hand, with no built-in dashboard Suits administrators more than casual home users
Self-hosted	Self-hosted
Closed source	Open source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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