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Expert guides on domain registration, WHOIS lookup, DNS, SSL, and domain investing.
Glue records are essential DNS records that prevent circular dependencies when a domain's nameservers are within the same domain. This article explains what glue records are, how they work, and when you need them, with practical examples and tips for domain owners and administrators.
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.
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.
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.
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.
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.
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.
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.
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.
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.