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

Understanding and automating the full TLS trust path prevents unexpected downtime

In July 2024, Starlink experienced a global outage that left users offline for over three hours. The cause wasn't a satellite malfunction or a software bug, but something far more common and preventab...

Tim Henrich

Dec 18, 2025

8 min read

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Security Insights

Configuring automated TLS issuance and monitoring at the CDN edge

In early 2023, viewers of a major UK broadcaster trying to stream their favorite shows were met not with content, but with stark browser warnings. The culprit wasn't a server crash or a network outage...

Tim Henrich

Dec 17, 2025

8 min read

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Security Insights

Beyond the Padlock: A DevOps Guide to Certificate-Based Attack Vectors and Mitigations

The green padlock in a browser has become a universal symbol of trust. We've trained users to look for it, assuring them that their connection is secure. But for DevOps engineers, security professiona...

Tim Henrich

Dec 17, 2025

8 min read

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Security Insights

An incident response playbook for leaked private keys

A notification hits your inbox: a security researcher discovered a private key for one of your production TLS certificates in a public code repository. The initial reaction is a jolt of adrenaline, fo...

Tim Henrich

Dec 16, 2025

9 min read

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Security Insights

Building a dedicated certificate management team to oversee enterprise machine identities

The era of treating certificate management as a part-time, ad-hoc task for an already overburdened sysadmin is over. A single expired certificate can bring a global service to its knees—just ask Micro...

Tim Henrich

Dec 16, 2025

7 min read

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Security Insights

Four pillars of digital certificate management for constrained IoT devices

Imagine a smart city where every traffic light, sensor, and public transit vehicle suddenly goes offline. The cause isn't a malicious attack, but something far more mundane: an expired certificate. Wi...

Tim Henrich

Dec 15, 2025

9 min read

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Knowledge Hub

Understanding and automating the full TLS trust path prevents unexpected downtime

Configuring automated TLS issuance and monitoring at the CDN edge

Beyond the Padlock: A DevOps Guide to Certificate-Based Attack Vectors and Mitigations

An incident response playbook for leaked private keys

Building a dedicated certificate management team to oversee enterprise machine identities

Four pillars of digital certificate management for constrained IoT devices

Topics

Featured

Quantifying the Real Cost of Certificate Outages on Modern Infrastructure

Securing DNS Infrastructure Against Subdomain Takeovers and Registrar Exploits

Automating Let's Encrypt Certificate Renewals Across Enterprise Infrastructure