Blocky

Spec sheet

Purpose

Blocky is a DNS proxy and ad blocker for local networks, written in Go.Read 11 Oct 2026 · 0xerr0r.github.io

API

Its REST API includes endpoints for blocking controls, list refresh, DNS queries, cache flushing, and statistics.Read 11 Oct 2026 · 0xerr0r.github.io

Support

The project welcomes issues, feature suggestions, and pull requests on GitHub, and asks users who find Blocky useful to consider contributing.Read 11 Oct 2026 · 0xerr0r.github.io

Blocking

It blocks DNS queries using external allowlists and denylists, with per client group rules, periodic list reloads, regex support, and CNAME and IP checks.Read 11 Oct 2026 · 0xerr0r.github.io

DNS configuration

It supports custom DNS resolution, conditional forwarding, and upstream resolvers configured per client group.Read 11 Oct 2026 · 0xerr0r.github.io

Installation

Official installation options include a standalone binary and a Docker container; the project also describes a multi-architecture Docker image and support for x86-64, ARM, and MIPS.Read 11 Oct 2026 · 0xerr0r.github.io

Logging

DNS query logs can be stored in CSV, MySQL, MariaDB, PostgreSQL, or Timescale database formats.Read 11 Oct 2026 · 0xerr0r.github.io

macOS

The installation documentation lists macOS installation through Homebrew.Read 11 Oct 2026 · 0xerr0r.github.io

Monitoring

Blocky can export metrics to Prometheus, and its documentation provides Grafana dashboards.Read 11 Oct 2026 · 0xerr0r.github.io

Performance

It supports configurable DNS caching, prefetching, and multiple external resolvers, and the documentation describes it as having a low memory footprint.Read 11 Oct 2026 · 0xerr0r.github.io

Privacy and security

The project says Blocky collects no user data, telemetry, or statistics and supports DNSSEC validation of upstream resolvers.Read 11 Oct 2026 · 0xerr0r.github.io

Protocols

It supports DNS over UDP, TCP, HTTPS, TLS, QUIC, and HTTPS/3.Read 11 Oct 2026 · 0xerr0r.github.io

Plans and prices

Every Blocky plan and price →

Where Specifiction places it

• Internet Filtering Software#16 of 658.2