SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
amphenol-fiberoptics.com
SSL/TLS Certificate
SSL/TLS Certificate for amphenol-fiberoptics.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- amphenol-fiberoptics.com
- Valid from
- Sep 20, 2026
- Valid until
- Dec 19, 2026 (58 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05191FD2EA88B5B7B3A9C2FF8A9F5C7F9E7D
- SHA-256 fingerprint
- 94:79:A8:26:9B:AD:CA:FC:A0:E1:34:8E:F3:BC:84:62:8D:6E:85:12:9A:2F:4D:ED:25:FA:CF:32:0E:60:1E:0D
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 21, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, CNAME, TXT 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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