SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
it-defense.de
SSL/TLS Certificate
SSL/TLS Certificate for it-defense.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- it-defense.de
- Valid from
- Oct 14, 2026
- Valid until
- Jan 12, 2027 (84 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 05D0F48E80D46BB2D347E67EBD82BFB781CC
- SHA-256 fingerprint
- 25:F1:9E:91:2B:05:0F:9B:4B:9F:19:2D:9A:77:56:F7:C8:56:78:5A:8F:30:21:43:06:88:CB:50:B5:2C:03:22
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Aug 31, 2026.
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Uptime
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DNS changes
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TLS certificate
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