SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
asb-campus-nrw.de
SSL/TLS Certificate
SSL/TLS Certificate for asb-campus-nrw.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- asb-campus-nrw.de
- Valid from
- Oct 28, 2026
- Valid until
- Jan 26, 2027 (78 days remaining)
- Public key
- EC 256-bit
- Serial
- 0528D07298EC512241D1A4B39F08452667C4
- SHA-256 fingerprint
- 77:12:19:EC:BB:EA:26:80:8F:EC:EC:C1:4C:07:05:DA:FD:61:B8:93:8F:B7:1E:BC:0F:50:6B:C9:86:89:A3:12
- Chain
- YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Oct 28, 2026.
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Uptime
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DNS changes
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TLS certificate
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