Axelspire helps engineering and security teams eliminate certificate-driven outages through enterprise PKI automation and infrastructure intelligence — founded by Dan Cvrcek, PKI architect, applied cryptographer, CISO level consultant focusing on efficient operations of technology solutions. He has 20+ years experience at Barclays, Deutsche Bank, TSB Bank, Sky UK, Comcast, and others.

Welcome to our technical knowledge base covering certificate lifecycle management, ACME automation, and post-quantum migration.

Tag: extensions

All PKI knowledge base pages tagged with "extensions".

1 page tagged with extensions

Certificate Anatomy — Certificate anatomy is the structure and fields inside an X.509 certificate—subject, issuer, validity, extensions like Key Usage and SAN. This page explains what each part does so you can read, debug, and configure certificates correctly in PKI and TLS.

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