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

Beyond Expiration Dates: The 9 Certificate Management Metrics That Truly Matter

We've all been there. A critical service goes down, alerts are firing, and after a frantic investigation, the culprit is found: a single, forgotten TLS certificate that expired silently in the night. ...

Tim Henrich

Oct 24, 2025

8 min read

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Security Insights

The Silent Killer of Uptime: A Modern Guide to Monitoring Certificate Health in Production

In February 2020, Microsoft Teams went dark. For hours, millions of users were locked out of a critical communication tool, not because of a complex cyberattack or a massive infrastructure failure, bu...

Tim Henrich

Oct 21, 2025

7 min read

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Security Insights

PCI DSS Certificate Requirements Explained: Your Guide to Compliance in 2025

The deadline for full compliance with PCI DSS 4.0 is March 31, 2025, and it represents the most significant evolution in payment card security in nearly a decade. For DevOps engineers, security profes...

Tim Henrich

Oct 21, 2025

8 min read

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Security Insights

Beyond Downtime: Calculating the True Cost of SSL/TLS Certificate Outages

It’s a scenario that keeps DevOps engineers and SREs up at night. A critical service suddenly becomes unreachable. Dashboards light up with red alerts, customer support tickets flood in, and the frant...

Tim Henrich

Oct 20, 2025

8 min read

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Security Insights

Securing Mobile APIs: A Practical Guide to Modern Certificate Pinning

In the world of mobile security, the Man-in-the-Middle (MITM) attack remains a persistent and dangerous threat. An attacker on a compromised network—be it public Wi-Fi or a corporate environment—can i...

Tim Henrich

Oct 20, 2025

6 min read

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Security Insights

Wildcard vs. Multi-Domain Certificates: Choosing the Right SSL/TLS Strategy

Securing your online presence requires careful consideration of various factors, including the type of SSL/TLS certificate you choose. Two popular options are wildcard and multi-domain (SAN) certifica...

Tim Henrich

Sep 23, 2025

4 min read

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Knowledge Hub

Beyond Expiration Dates: The 9 Certificate Management Metrics That Truly Matter

The Silent Killer of Uptime: A Modern Guide to Monitoring Certificate Health in Production

PCI DSS Certificate Requirements Explained: Your Guide to Compliance in 2025

Beyond Downtime: Calculating the True Cost of SSL/TLS Certificate Outages

Securing Mobile APIs: A Practical Guide to Modern Certificate Pinning

Wildcard vs. Multi-Domain Certificates: Choosing the Right SSL/TLS Strategy

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