SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for a-ib.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.a-ib.de
- Valid from
- Nov 9, 2026
- Valid until
- May 22, 2027 (191 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 03789B2CF8A29B6A7573FE4E7BB40D61
- SHA-256 fingerprint
- 55:54:CD:80:8C:3C:89:EE:06:CB:EA:6C:F2:1B:25:2B:39:75:C5:5B:7B:D9:4F:12:65:A8:F7:48:3D:85:8F:74
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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 Oct 29, 2026.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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