SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dr-praetorius.de
SSL/TLS Certificate
SSL/TLS Certificate for dr-praetorius.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- dr-praetorius.de
- Valid from
- Oct 6, 2026
- Valid until
- Jan 4, 2027 (78 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 056FBC153A714105B0F636054026004A81CB
- SHA-256 fingerprint
- D6:27:F3:A5:93:F2:BA:92:0E:2B:44:EA:23:06:DB:B9:66:7A:E3:97:48:E0:CD:25:5A:84:1C:90:41:65:BB:D9
- 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.
This certificate has been served since Oct 2, 2026.
Never get surprised by dr-praetorius.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch dr-praetorius.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.