SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
nis-time.de
SSL/TLS Certificate
SSL/TLS Certificate for nis-time.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- nis-time.de
- Valid from
- Sep 28, 2026
- Valid until
- Dec 27, 2026 (69 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 060677C7DD7EAEE6C17AD43D815BADE79860
- SHA-256 fingerprint
- FC:6A:A8:75:E9:C7:40:47:1B:4E:81:46:A7:5D:F9:69:25:1B:B0:B2:BC:DB:B7:36:AA:8D:44:A7:3A:1B:84:2F
- 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 9, 2026.
Never get surprised by nis-time.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch nis-time.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, 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.
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