SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
spd-oberfranken.de
SSL/TLS Certificate
SSL/TLS Certificate for spd-oberfranken.de
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- spd-oberfranken.de
- Valid from
- Jul 14, 2026
- Valid until
- Oct 12, 2026 (75 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 050F560FEE95616171BEE6627AE3AEC87576
- SHA-256 fingerprint
- DF:B2:6A:48:5E:C0:EC:73:63:CC:7B:9F:ED:F6:E8:CE:06:20:66:62:06:6C:E5:91:32:5B:FA:C9:FA:56:9A:9F
- 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 spd-oberfranken.de's certificate expiring
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Uptime
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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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