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security

How to Use SSHFP Records in DNS to Verify SSH Host Keys and Prevent Man-in-the-Middle Attacks

SSHFP (SSH Fingerprint) records in DNS let clients automatically verify SSH host keys before connecting, blocking man-in-the-middle attacks. This article explains how to generate and publish SSHFP records, configure clients to verify them automatically, and why combining SSHFP with DNSSEC provides strong security for remote server access.

Jul 16, 2026 1 views

security

How to Use DANE (DNS-Based Authentication of Named Entities) to Secure Email and TLS Without Relying on Certificate Authorities

Learn how DANE (DNS-Based Authentication of Named Entities) can secure email and TLS connections without relying entirely on certificate authorities. This guide explains DANE’s mechanics, practical implementation steps for SMTP and HTTPS, and tips to reduce CA-related risk using DNSSEC-protected TLSA records.

Jul 13, 2026 5 views

security

MTA-STS and TLS-RPT: How to Enforce Secure Email Delivery with DNS Records

MTA-STS and TLS-RPT are two DNS-based email security standards that enforce encrypted delivery and provide failure reports. This guide explains how to set them up with practical steps, policy examples, and actionable tips to protect your domain from email interception.

Jul 10, 2026 11 views

dns

How to Use DNS SRV Records for Service Discovery (SIP, XMPP, LDAP, and More)

DNS SRV records are powerful but often overlooked. They let you point specific services (like SIP, XMPP, or LDAP) to particular servers and ports, enabling failover and load balancing through priority and weight values. This article breaks down SRV record format, real-world use cases, setup tips, and how to verify your records using tools like Whose.Domains’ DNS Analyzer.

Jul 7, 2026 15 views

dns

How to Use Reverse DNS (PTR Records) to Improve Email Deliverability and Network Security

Reverse DNS (PTR records) is a critical but often overlooked component of email deliverability and network security. This article explains how PTR records work, why they matter for preventing spam and mitigating attacks, and provides step-by-step guidance on setting them up correctly for your domains and mail servers.

Jul 1, 2026 19 views

dns

DNS Anycast Explained: How It Enhances Domain Resolution Speed and Reliability

DNS Anycast is a network routing technique that allows multiple servers to share the same IP address, directing users to the closest or most responsive server. This drastically reduces domain resolution latency and provides automatic failover, making your website faster and more resilient. In this article, we break down how anycast works, its real-world impact, and how you can leverage it for your own domains.

Jun 25, 2026 29 views

dns

DNS TTL Optimization: How to Choose the Right Time-to-Live Values for Performance and Reliability

DNS TTL (Time-to-Live) is a critical setting that balances website performance against update reliability. This guide explains how TTL works, how to choose optimal values for different scenarios, and when to adjust them for planned changes. Learn practical strategies to keep your site fast without compromising control.

Jun 22, 2026 52 views

security

How to Perform a Domain Security Audit in 2026: Step-by-Step Guide

Domain security audits are essential in 2026 to protect your online identity from hijacking, phishing, and configuration drift. This step-by-step guide covers checking WHOIS records, DNS settings, SSL certificates, email security, and more using practical examples and free tools from Whose.Domains.

Jun 13, 2026 75 views

brand-protection

How to Detect and Prevent Domain Typo Squatting: Tools and Techniques

Domain typo squatting is a harmful practice where cybersquatters register misspelled versions of popular domains to steal traffic or perpetrate scams. This article explains how to detect typo squatting attacks on your brand and provides actionable prevention techniques using both manual checks and specialized network tools.

Jun 10, 2026 76 views

dns

DNS Propagation Explained: What It Is, Why It Takes Time, and How to Verify It

DNS propagation is the time it takes for your domain’s new DNS records to be distributed across the internet’s global network of servers. This article explains why propagation isn’t instant, how to check its status, and practical steps to minimise downtime when making changes.

Jun 1, 2026 77 views

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