SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
helfrecht-dental.de
SSL/TLS Certificate
SSL/TLS Certificate for helfrecht-dental.de
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- helfrecht-dental.de
- Valid from
- Jun 26, 2025
- Valid until
- Jun 26, 2026 (expired 32 days ago)
- Public key
- RSA 2048-bit
- Serial
- A3D807ED1B34A8C300A762EA54012323
- SHA-256 fingerprint
- 65:E1:F4:D5:DE:49:93:EE:5B:6F:D8:3A:19:68:41:63:84:96:B2:76:21:9D:3D:14:EA:AE:0F:C4:80:C6:B1:05
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by helfrecht-dental.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch helfrecht-dental.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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.