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Certificate & Domain Monitoring Insights

Expert insights on certificate monitoring, domain management, and DevOps operational best practices.

Certificate Transparency: Your Infrastructure's Open Book

June 27, 2025 • By haveibeenexpired team • 6 min read

How Certificate Transparency logs expose your infrastructure to the public, the security benefits and privacy risks involved, and how to leverage CT data for automated certificate monitoring and host discovery.

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Certificate Transparency SSL Security Infrastructure Discovery

Let's Encrypt ACME Protocol: How Certificate Renewal Works and Why It Fails

May 6, 2025 • By haveibeenexpired team • 3 min read

Deep dive into Let's Encrypt's ACME protocol, automatic certificate renewal mechanisms, common failure scenarios, and monitoring strategies to prevent expired certificates.

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Let's Encrypt ACME Certificate Renewal

Certificate & Domain Expiration Disasters: How Tech Giants Lost Millions to Simple Oversights

March 25, 2025 • By haveibeenexpired team • 5 min read

Real-world examples of major companies suffering massive outages due to expired SSL certificates and domains, including Microsoft Teams, LinkedIn, Google Voice, and proven strategies to prevent these costly disasters.

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SSL Certificates Domain Management Certificate Expiration
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