Blog - Domain Tips, Guides & Insights | Whose.Domains

Whose.Domains

📝 Whose.Domains Blog

Expert guides on domain registration, WHOIS lookup, DNS, SSL, and domain investing.

All Posts Domain Tools Domain Investing Guides News

security

CAA Records Explained: How to Restrict Which Certificate Authorities Can Issue SSL/TLS Certificates for Your Domain

CAA (Certificate Authority Authorization) records are DNS records that let you control which Certificate Authorities can issue SSL/TLS certificates for your domain. This article explains the syntax, walks through real-world examples, and shares actionable tips to avoid common pitfalls.

Aug 28, 2026 2 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 64 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 45 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 171 views

📄

security

Understanding SSL Certificate Revocation: CRLs, OCSP, and How to Verify in 2026

SSL certificate revocation is a critical but often overlooked aspect of website security. This article explains how Certificate Revocation Lists (CRLs) and the Online Certificate Status Protocol (OCSP) work, covers modern advancements like OCSP stapling and Must-Staple, and provides actionable steps to verify revocation status in 2026 using free tools and command-line checks.

Jun 7, 2026 408 views

📄

security

How to Use SSL/TLS Certificate Transparency Logs to Detect Phishing Domains

Certificate Transparency logs provide a powerful, publicly accessible record of all SSL/TLS certificates issued for domains. By monitoring these logs, you can detect phishing domains that impersonate your brand with lookalike certificates, often issued within minutes of registration. This guide explains how to query CT logs, spot suspicious certificates, and integrate this intelligence into your security routine—with practical tips and real-world examples.

Jun 4, 2026 182 views

📄

guides

SSL Certificate Explained: What It Is, Why It Matters, How to Check It

SSL certificates encrypt your website traffic and build visitor trust. This beginner-friendly guide explains SSL/TLS, certificate types, and how to check any site.

Apr 20, 2026 120 views