SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
1-klick.de
SSL/TLS Certificate
SSL/TLS Certificate for 1-klick.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- 1-klick.de
- Valid from
- Jul 29, 2026
- Valid until
- Oct 27, 2026 (79 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 0593E8C361E466BA7213DA20722DF148B244
- SHA-256 fingerprint
- 8A:D5:A0:DB:9F:27:A9:AA:7D:58:F9:86:A0:15:BD:F9:E7:12:BD:09:A3:50:ED:8F:9D:2E:C0:D6:A6:93:23:47
- 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 1-klick.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch 1-klick.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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