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 denk-kreativ.de

Valid
Issued by (CA)
Sectigo Limited
Subject
*.denk-kreativ.de
Valid from
Feb 23, 2026
Valid until
Mar 9, 2027 (118 days remaining)
Public key
RSA 2048-bit
Serial
5787A34D41A1C9E41BD74230C7DC2CA0
SHA-256 fingerprint
34:30:D7:AC:9F:C5:0D:D4:C1:C1:5D:AE:68:94:07:AB:CB:3A:2B:74:FC:90:7F:1E:BF:A3:C2:95:5F:C3:CD:CE
Chain
Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Subject Alternative Names (2)
*.denk-kreativ.de, denk-kreativ.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 Sep 15, 2026.

Never get surprised by denk-kreativ.de's certificate expiring

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

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.