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Technitium DNS Server vs Knot DNS: catalog facts
Technitium DNS Server	Knot DNS
Free Free and open source under the GPL.	Free Free to download and use under the GPL 3 or later license.
Windows, macOS, Linux, Self-hosted	macOS, Linux, Command line
Authoritative and recursive in one server, so it hosts your zones and resolves everything else Blocks ads and malware for every device on the network without per-device setup	Automatic DNSSEC signing IXFR, dynamic updates and response rate limiting
Considerably more complex than Pi-hole if all you want is ad blocking Running your own DNS means DNS outages become your problem	Authoritative only, with no recursive resolver No Windows support
Self-hosted, Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0-or-later
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 2, 2026

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