SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jas-net.de
SSL/TLS Certificate
SSL/TLS Certificate for jas-net.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- jas-net.de
- Valid from
- Aug 29, 2026
- Valid until
- Nov 27, 2026 (69 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 05CF7DF52FB12BC088460E85EFE13A739852
- SHA-256 fingerprint
- FB:DB:32:F3:BB:DF:F3:F9:55:F9:37:01:AD:35:DA:A4:8E:21:1D:0C:58:34:36:91:E4:0B:22:86:F6:A7:35:7C
- 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 jas-net.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch jas-net.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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