SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
wasserwerke-zwickau.com
SSL/TLS Certificate
SSL/TLS Certificate for wasserwerke-zwickau.com
Untrusted chain- Issued by (CA)
- GlobalSign nv-sa
- Subject
- *.wasserwerke-zwickau.de
- Valid from
- Mar 5, 2026
- Valid until
- Apr 6, 2027 (142 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 448C3062C20AFDC934CCF8CA
- SHA-256 fingerprint
- 3F:89:07:3F:AA:61:EB:51:74:D7:0E:8F:6B:2F:4D:47:D0:8E:C1:73:77:3F:26:4E:35:F4:2C:EB:B7:E9:12:14
- Chain
- —
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by wasserwerke-zwickau.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch wasserwerke-zwickau.com 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.