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sdns vs AdGuard Home: catalog facts
sdns	AdGuard Home
Free Free to use from its GitHub repository.	Free Free and open source under the GPL 3.0. AdGuard also sells a hosted AdGuard DNS service…
Linux, Self-hosted, Command line	Windows, macOS, Linux, Web, Self-hosted
Full recursive resolution without a public upstream Built-in blocklist filtering	Acts as a DNS-over-HTTPS, DNS-over-TLS and DNS-over-QUIC server itself One binary with a web interface, so installation is straightforward
Configured by file with no graphical interface Smaller community than Unbound or Pi-hole	Run by a company that also sells blocking products, so the free tier is marketing Over-blocking breaks sites, as with any DNS blocker
Self-hosted	Self-hosted
Closed source	Open source
License not stated	License: GPL-3.0
No account needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 21, 2026

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