SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bauphysik-nachhaltigkeit.de
SSL/TLS Certificate
SSL/TLS Certificate for bauphysik-nachhaltigkeit.de
Valid- Issued by (CA)
- ZeroSSL GmbH
- Subject
- bauphysik-nachhaltigkeit.de
- Valid from
- Oct 10, 2026
- Valid until
- Jan 8, 2027 (62 days remaining)
- Public key
- EC 256-bit
- Serial
- D3F24FE8D189E0EF04ED633227567AD6
- SHA-256 fingerprint
- B4:2B:37:B4:82:50:B3:2E:FF:9C:68:E5:D0:92:F8:CB:FC:40:AC:F1:39:8E:2F:E3:EF:28:DE:BD:D6:0F:26:E2
- Chain
- ZeroSSL ECC DV SSL CA 2 → Sectigo Public Server Authentication Root E46 → USERTrust ECC Certification Authority
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 Nov 6, 2026.
Never get surprised by bauphysik-nachhaltigkeit.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch bauphysik-nachhaltigkeit.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.