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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 637 views
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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 255 views
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security

How to Use DNS Over HTTPS (DoH) to Improve Privacy and Security

DNS queries are often transmitted unencrypted, leaving your browsing habits exposed. DNS Over HTTPS (DoH) encrypts those queries to enhance privacy and prevent tampering. This guide explains how DoH works, how to enable it in your browser and operating system, and how to verify it's working using tools like the Whose.Domains DNS Analyzer.

May 31, 2026 271 views
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domain-tools

Reverse WHOIS Lookup: How to Discover All Domains Registered by the Same Owner

Reverse WHOIS lookup lets you find every domain registered to the same person or organization, revealing hidden connections between websites. This guide explains how reverse WHOIS works, real-world use cases for cybersecurity and competitor research, and actionable tips to get the most out of it. You’ll also learn how to use simple tools like WHOIS Lookup to start your own reverse WHOIS investigations.

May 28, 2026 374 views
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security

How to Protect Your Domain from Hijacking: Prevention Tips and Recovery Steps

Domain hijacking can cripple your online presence, from lost email to stolen traffic. This guide covers proactive prevention tips—like enabling registrar lock and two-factor authentication—plus actionable recovery steps if your domain is taken. Learn how to safeguard your digital assets before it's too late.

May 25, 2026 165 views
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security

What Is a DNS CAA Record and How to Use It to Enhance SSL Certificate Security

DNS CAA (Certification Authority Authorization) records let domain owners specify which certificate authorities (CAs) are allowed to issue SSL/TLS certificates for their domain. By adding a CAA record, you reduce the risk of rogue or unauthorized certificate issuance, closing a common vector for man-in-the-middle attacks. This article explains how CAA records work, how to set them up, and how tools like a DNS analyzer can help you verify your configuration.

May 22, 2026 156 views
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security

DNSSEC Explained: How It Protects Your Domain from DNS Spoofing and Cache Poisoning

DNSSEC (Domain Name System Security Extensions) protects websites from DNS spoofing and cache poisoning by cryptographically signing DNS records. This article explains how DNSSEC works, why it matters, and provides practical steps to enable it on your domain—helping you keep visitors safe from redirect attacks and impersonation.

May 10, 2026 181 views
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