SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
optimo-service.com
SSL/TLS Certificate
SSL/TLS Certificate for optimo-service.com
Expired- Issued by (CA)
- GoDaddy.com, Inc.
- Subject
- *.datimo.ch
- Valid from
- Dec 13, 2016
- Valid until
- Dec 13, 2019 (expired 2414 days ago)
- Public key
- RSA 2048-bit
- Serial
- 96EB4A01C9B4EBE5
- SHA-256 fingerprint
- 5B:22:67:4B:2A:5B:E3:C3:AC:C0:6C:97:25:0A:A3:A8:0B:40:58:00:D3:07:8C:24:33:BF:89:F2:A8:0F:27:4F
- Chain
- Go Daddy Secure Certificate Authority - G2 → Go Daddy Root Certificate Authority - G2
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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