Expert Insights & Best Practices

Knowledge Hub

Deep insights, real-world case studies, and proven strategies from the trenches of certificate and expiration management

Security Insights

Certificate Architecture Patterns for Ephemeral Microservices

When Epic Games suffered a massive 5.5-hour global outage, the root cause wasn't a sophisticated cyberattack or a catastrophic database failure. An internal TLS certificate expired, preventing microse...

Tim Henrich

Aug 11, 2026

6 min read

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Security Insights

Domain Expiration is a Cybersecurity Crisis, Not an Admin Error

For decades, a forgotten domain renewal was treated as an embarrassing administrative oversight. If a company forgot to pay its registrar, the website would be replaced by a parked page full of generi...

Tim Henrich

Aug 07, 2026

7 min read

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Security Insights

Diagnosing Broken Certificate Chains When the Leaf Certificate is Valid

You just rotated your TLS certificates. You open Google Chrome, navigate to your production endpoint, and see the reassuring padlock icon. The deployment was a success. Ten minutes later, your PagerDu...

Tim Henrich

Aug 07, 2026

7 min read

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Security Insights

How Dangling DNS and Wildcard Certificates Enable Subdomain Takeovers

The proliferation of microservices, service meshes, and multi-cloud architectures has triggered an explosion in the number of subdomains organizations must manage. Historically, IT and DevOps teams re...

Tim Henrich

Aug 05, 2026

5 min read

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Security Insights

Replacing Wildcard Certificates with Automated Subdomain Issuance

Managing SSL/TLS certificates used to be a predictable, annual IT chore. You bought a certificate, installed it on a web server, and set a calendar reminder to renew it next year. Today, the explosion...

Tim Henrich

Jul 31, 2026

6 min read

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Security Insights

How to Build a Failsafe Certificate Expiration Alerting Pipeline

The era of tracking SSL/TLS certificates in spreadsheets is officially over. With Google’s "Moving Forward, Together" initiative driving the industry toward a maximum certificate validity of just 90 d...

Tim Henrich

Jul 31, 2026

6 min read

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Knowledge Hub

Certificate Architecture Patterns for Ephemeral Microservices

Domain Expiration is a Cybersecurity Crisis, Not an Admin Error

Diagnosing Broken Certificate Chains When the Leaf Certificate is Valid

How Dangling DNS and Wildcard Certificates Enable Subdomain Takeovers

Replacing Wildcard Certificates with Automated Subdomain Issuance

How to Build a Failsafe Certificate Expiration Alerting Pipeline

Topics

Featured

Comparing Tools and Tactics to Mitigate Certificate-Based Attack Vectors

Implementing Zero-Downtime Certificate Rotation Across Web Servers and Kubernetes

Wildcard vs. SAN Certificates: Security, Automation, and Compliance