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 chemlab-gmbh.de

Valid
Issued by (CA)
Sectigo Limited
Subject
www.chemlab-gmbh.de
Valid from
Dec 25, 2025
Valid until
Jan 8, 2027 (122 days remaining)
Public key
RSA 2048-bit
Serial
12F200C67F2F28F16A54CF4322D3A7F6
SHA-256 fingerprint
59:BE:35:3B:0D:96:F7:6A:3D:40:B2:E0:F1:CD:FF:B4:D1:07:D9:8C:8D:BC:03:15:BC:8D:0F:48:AB:76:D9:3F
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
chemlab-gmbh.de, www.chemlab-gmbh.de

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 1, 2026.

Never get surprised by chemlab-gmbh.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch chemlab-gmbh.de continuously, notifying you the moment anything moves across all three signals:

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.