Up-to-date content about SSL certificates, web security and technology
Is the certificate valid, issued for the right domain and installed completely? Three ways to check an SSL certificate: in the browser, with an online check and on the command line, plus the five things that matter.
The certificate is installed, yet the browser says "Not secure" or shows a warning page. The seven most common causes, from mixed content to a missing redirect, and how to fix each.
SSL certificates are now valid for at most 200 days. How to renew in time: the right moment, the steps from CSR to installation and what visitors see when a certificate expires.
From free to several hundred dollars a year: the price of an SSL certificate depends on validation, coverage and term. The price levels, what drives them and where to save.
A free SSL certificate encrypts just as strongly as a paid one. The differences are lifetime, validation type, warranty and support. When free is enough and when a paid certificate is worth it.
A service reached directly by IP address, with no domain name, can still be protected with HTTPS. What an IP SSL certificate is, which IP addresses qualify, how validation works and what to do about 192.168.x.x addresses on a local network.
The maximum lifetime of an SSL certificate fell to 200 days in 2026; it becomes 100 days in 2027 and 47 days in 2029. Domain validation reuse shrinks to 10 days. Here is what changes on each date and what to do now.
DigiCert AI Trust Manager gives the AI agents an organisation uses a cryptographic identity, limits what they can reach and revokes their authority instantly when needed. How it works, what the AI Passport is, and who it is for.
CVE-2026-73570 lets an attacker run commands on a Zimbra mail server with a single email and no login. Attackers are planting web shells and collecting authentication secrets and mailbox data. Who is affected, how to check, and what to do.
Everything you need to know about ssl best practices. SSL/TLS Best Practices 2026: Security Best Practices — comprehensive guide, practical solutions and best practices.
Everything you need to know about SSL monitoring. SSL Monitoring: Certificate Expiration Tracking and Alarm Systems — comprehensive guide, practical solutions and best practices.
Everything you need to know about serverless ssl. SSL in Serverless Architecture: Lambda, Functions and Edge Computing — comprehensive guide, practical solutions and best practices.