SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
oh-saft.de
SSL/TLS Certificate
SSL/TLS Certificate for oh-saft.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- oh-saft.de
- Valid from
- Jun 15, 2026
- Valid until
- Sep 13, 2026 (38 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 054F7B5B5232B0C31608997DCB9BEFC35462
- SHA-256 fingerprint
- 6D:D6:6B:86:6B:42:D7:20:D8:EA:9F:38:FD:54:D8:B8:62:7A:4B:48:6A:06:26:5E:10:0C:E9:C4:1A:47:AE:7D
- Chain
- YR2 → 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 oh-saft.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch oh-saft.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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