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

Why Your Certificate Chain Fails in curl but Works in Chrome

You have just deployed a new TLS certificate to your web server. You open Google Chrome, navigate to your domain, and see the reassuring padlock icon. Everything looks perfect. But five minutes later,...

Tim Henrich

Sep 22, 2026

7 min read

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Security Insights

How to Build Resilient Let's Encrypt Renewal Pipelines

The operational reality of managing public-facing infrastructure has fundamentally shifted. With Google Chrome driving the industry toward a maximum public TLS certificate validity of 90 days, the 90-...

Tim Henrich

Sep 21, 2026

6 min read

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Security Insights

How to Secure Machine-to-Machine APIs with Certificate-Based Authentication

Static API keys are essentially passwords for machines. Like human passwords, they are frequently hardcoded, leaked in public repositories, intercepted in transit, or shared across environments where ...

Tim Henrich

Sep 21, 2026

7 min read

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Security Insights

Why Expired Certificates Are Now a GDPR Liability

When engineering teams discuss the General Data Protection Regulation (GDPR), the conversation usually revolves around database encryption, cookie consent banners, and data residency. Certificate life...

Tim Henrich

Sep 17, 2026

6 min read

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Security Insights

Securing DNS Infrastructure Against Subdomain Takeovers and Registrar Exploits

The Domain Name System (DNS) is the routing layer of the internet, translating human-readable domain names into machine-readable IP addresses. Despite its critical role, DNS infrastructure is frequent...

Tim Henrich

Sep 16, 2026

7 min read

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Security Insights

Architecting Microservices for Ultra-Short-Lived Certificates and mTLS

The push toward Zero Trust Architectures has fundamentally changed how we handle machine identities. While the public internet is bracing for the potential shift to 90-day TLS certificate lifespans, i...

Tim Henrich

Sep 16, 2026

6 min read

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Knowledge Hub

Why Your Certificate Chain Fails in curl but Works in Chrome

How to Build Resilient Let's Encrypt Renewal Pipelines

How to Secure Machine-to-Machine APIs with Certificate-Based Authentication

Why Expired Certificates Are Now a GDPR Liability

Securing DNS Infrastructure Against Subdomain Takeovers and Registrar Exploits

Architecting Microservices for Ultra-Short-Lived Certificates and mTLS

Topics

Featured

Implementing Certificate Transparency and Automating Domain Monitoring

Why Valid SSL Certificates Break in API Clients and IoT Devices

Defeating Adversary-in-the-Middle Attacks with Automated Certificate Controls