Articles - Page 12
CleanBrowsing DNS: Family/Adult/Security profiles, DoH/DoT, and parental control
CleanBrowsing is a public filtering DNS resolver (Family/Adult/Security) with DoH/DoT. Practical guide: router, mobile, checks, and anti-bypass.
NextDNS DNS: how it works, benefits, and setup
NextDNS is a customizable DNS resolver: DoH/DoT encryption, filtering, profiles, and logs. Here's how to deploy it cleanly at home or in an SMB.
AdGuard DNS (94.140.14.14): filtering, privacy, and Family mode
AdGuard DNS is a public DNS resolver that can block ads/trackers (and, in Family mode, adult content). Addresses, DoH/DoT/DoQ, and an action plan.
Cloudflare DNS (1.1.1.1): privacy, DoH/DoT, deployment
1.1.1.1 is Cloudflare's public DNS resolver. Here's how to use it properly (addresses, DoH/DoT/ODoH, tests, pitfalls) and deploy it.
Quad9 DNS (9.9.9.9): how it works, benefits, alternatives
Quad9 (9.9.9.9) is a public DNS resolver focused on security and privacy: malware blocking, DNSSEC validation, and encrypted DoT/DoH options. Here's how to deploy it properly.
Connect CaptainDNS to ChatGPT via MCP: 3 widgets for DNS audits and deliverability
Add the CaptainDNS MCP server to ChatGPT and use 3 widgets to troubleshoot DMARC/DNS and analyze email headers without leaving the conversation.
BIMI, VMC, CMC: compatibility and DNS prerequisites (Gmail, Yahoo, Apple Mail)
Putting your logo in the inbox: what you actually need to configure in DNS for BIMI, and how to choose between VMC and CMC.
Gmail/Yahoo one-click unsubscribe: what RFC 8058 changes and how to implement it
Gmail and Yahoo require a one-click unsubscribe via RFC 8058-compliant List-Unsubscribe headers. Here's the expected format, the server-side POST, and the compliance checklist.
IPv4 vs IPv6: understand the differences and plan the transition
IPv4 vs IPv6: address sizes, performance, security, NAT, DNS... Learn how to differentiate ipv4 and ipv6, what ipv6 vs ipv4 really means, the ipv4 and ipv6 difference for DNS, and how to keep both stacks coexisting.