Sinkzone DNS – Forwarder that blocks everything except your allowlist

In plain words

Sinkzone DNS is a local DNS forwarder that uses allowlist-only browsing to reduce distractions. It offers two modes: Monitor mode logs all domain traffic for review, and Focus mode blocks everything except explicitly allowed domains. Built in Go and open source, it runs on macOS, Linux, and Windows. Unlike traditional site blockers that blacklist distractions, Sinkzone takes the opposite approach by blocking all traffic by default, requiring users to actively permit only necessary sites.

written from the facts on this page · September 2026

From the sources

Block everything. Allow only what matters. A DNS tool for productivity, focus, and child safety. Allowlist-only internet for distraction-free work. - berbyte/sinkzone

In the maker’s words, at launch

Most site blockers work by blacklisting distractions. That never worked for me, the internet is too big, and there’s always something new to waste time on. I wanted the opposite: allowlist‑only browsing. Block everything by default, and explicitly allow only what I need. So I built Sinkzone: a local DNS forwarder…

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