SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
wafer-card.de
SSL/TLS Certificate
SSL/TLS Certificate for wafer-card.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- wafer-card.de
- Valid from
- Jul 21, 2026
- Valid until
- Oct 19, 2026 (47 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 05898558AA799E2E70AC59A00D6389C12D50
- SHA-256 fingerprint
- A6:F9:C8:18:1C:BD:CB:03:48:A1:4E:A2:A7:BB:5B:B8:BB:FC:EE:37:0E:39:32:82:45:94:7D:53:D6:10:AC:B5
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (letsencrypt.org).
Never get surprised by wafer-card.de's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch wafer-card.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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