SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ug-sam.de
SSL/TLS Certificate
SSL/TLS Certificate for ug-sam.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ug-sam.de
- Valid from
- Jun 6, 2026
- Valid until
- Sep 4, 2026 (33 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 06CA99998775F04BDC4126E84BA133E6629D
- SHA-256 fingerprint
- 31:A7:D7:87:C5:B1:8A:C6:32:2C:3A:92:D2:87:F1:F5:73:8A:CC:FF:7E:23:23:15:85:1F:F9:5C:37:37:BD:DC
- 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.
Never get surprised by ug-sam.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ug-sam.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.
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