---
id: 3735
title: "Free DNS Filtering"
source_domain: projectblack.io
source_url: "https://projectblack.io/blog/free-web-filtering/"
published_at: "2025-07-21 11:09"
tags: ["malware", "network-security", "cloudflare", "how-to", "dns-filtering"]
phying_url: "https://phying.com/item/3735"
lang: en
---

# Free DNS Filtering

## Summary

DNS-based filtering is a free, low-effort control: using a security resolver like Cloudflare's 1.1.1.3 stops malicious domains resolving. The post covers its limits and how to roll it out via DHCP.

## Intelligence Metadata

- **Sources:** projectblack.io
- **Published:** 2025-07-21 11:09
- **Original:** https://projectblack.io/blog/free-web-filtering/
- **Phying News:** https://phying.com/item/3735