SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for s-pur.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- s-pur.de
- Valid from
- Sep 13, 2026
- Valid until
- Dec 12, 2026 (78 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05E24288851626D808896898914856D9B705
- SHA-256 fingerprint
- 20:3E:0D:F3:1E:E7:CC:E9:60:6C:D1:70:C5:57:43:81:CA:7C:83:C9:6C:FD:36:3C:D2:63:96:A1:B6:14:43:C1
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 23, 2026.
Never get surprised by s-pur.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch s-pur.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.