SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
tanzschule-seidel.net
SSL/TLS Certificate
SSL/TLS Certificate for tanzschule-seidel.net
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- tanzschule-seidel.net
- Valid from
- Sep 29, 2026
- Valid until
- Dec 28, 2026 (68 days remaining)
- Public key
- EC 256-bit
- Serial
- 05D512361DE34CA6F07C775A75E52BD1951D
- SHA-256 fingerprint
- F0:D9:99:3B:65:7F:5C:9F:41:96:88:64:AD:C1:BB:72:4D:C1:11:5C:F9:DB:8E:F9:CF:33:01:03:D1:10:81:F1
- Chain
- YE1 → 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.
This certificate has been served since Sep 30, 2026.
Never get surprised by tanzschule-seidel.net's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch tanzschule-seidel.net 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.