SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
wisea-gmbh.de
SSL/TLS Certificate
SSL/TLS Certificate for wisea-gmbh.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- wisea-gmbh.de
- Valid from
- Oct 11, 2026
- Valid until
- Jan 9, 2027 (79 days remaining)
- Public key
- EC 256-bit
- Serial
- 057EBA19747043C84245AD40D4FFC8830E23
- SHA-256 fingerprint
- 24:5B:BE:62:0C:EB:59:EF:73:5B:E1:17:58:12:8C:BB:BD:64:0B:9F:B5:08:E6:97:37:88:8E:93:7C:1E:EB:91
- Chain
- YE2 → 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.
Never get surprised by wisea-gmbh.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch wisea-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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.