Articles & Guides
Useful resources for web developers and system administrators
Found 33 · SSL/TLS · Reset
SSL/TLS
Mixed Content: How to Find and Fix HTTP Resources on HTTPS Sites
Mixed content blocks scripts, styles and iframes on HTTPS pages. Active vs passive, finding every http URL in code and database, CSP reports, regression control.
SSL/TLS
SSL Handshake Failed: Root Causes and Step-by-Step Diagnosis
SSL handshake failed — deep dive into causes and diagnosis: protocols, SNI, cipher suites, client certs. openssl and curl examples for debugging.
SSL/TLS
Expired SSL Certificate: How to Fix NET::ERR_CERT_DATE_INVALID
Expired SSL certificate? Learn how to quickly diagnose and fix NET::ERR_CERT_DATE_INVALID, renew the certificate, and set up monitoring to prevent it.
SSL/TLS
How to Check SSL Certificate and Never Miss Expiration
How to check an SSL certificate: via browser, OpenSSL, and online tools. Certificate types, trust chain explained, and automated expiration monitoring.
SSL/TLS
Certificate Transparency Logs: Detecting Rogue Certificates and Monitoring Your Domain
Understand how Certificate Transparency logs work, why they matter for web security, and how to monitor CT logs to detect unauthorized certificates issued for your domain.
SSL/TLS
TLS Handshake Explained: Step-by-Step Guide to Secure Connections
Understand the TLS handshake process step by step. Compare TLS 1.2 vs 1.3, learn about performance implications, and optimize your SSL/TLS configuration.
SSL/TLS
Wildcard SSL Certificates: When and How to Use Them
Learn about wildcard SSL certificates — how they work, security implications, when to use them vs individual certs, and configuration best practices.
SSL/TLS
SSL Pinning: What It Is and When to Use It
Learn how SSL/TLS certificate pinning works, its security benefits, implementation methods, and when pinning is appropriate for your application.
SSL/TLS
TLS 1.3: What Changed and Why It Matters
Discover the improvements in TLS 1.3 over previous versions — faster handshakes, stronger security, and reduced latency for modern web applications.
SSL/TLS
SSL Certificate Monitoring: Avoiding Downtime
How to monitor SSL certificates: auto-renewal, expiration dates, chain of trust, notifications. Preventing certificate-related downtime.