SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
over-lab.de
SSL/TLS Certificate
SSL/TLS Certificate for over-lab.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- over-lab.de
- Valid from
- Nov 29, 2025
- Valid until
- Dec 13, 2026 (72 days remaining)
- Public key
- RSA 2048-bit
- Serial
- BB5C288A3E447ED66F012FFB361298A9
- SHA-256 fingerprint
- EC:F4:6D:C5:B1:ED:1C:CD:12:BB:6D:45:27:AD:6F:38:99:92:EB:3D:BD:16:85:5E:D8:96:71:EA:B7:08:DF:4B
- 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.
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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