SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
actiu-isp.com
SSL/TLS Certificate
SSL/TLS Certificate for actiu-isp.com
Expired- Issued by (CA)
- Let's Encrypt
- Subject
- actiu-isp.com
- Valid from
- Feb 9, 2024
- Valid until
- May 9, 2024 (expired 850 days ago)
- Public key
- RSA 2048-bit
- Serial
- 04E2A4EB1B8A1ACD500B2FBF782D30506D2F
- SHA-256 fingerprint
- 99:FF:E2:31:6F:2F:E6:CB:50:D6:08:59:CA:5D:D7:7F:5E:A8:26:7A:4A:2C:80:8F:70:7F:B8:DD:78:EF:9E:B5
- Chain
- R3 → ISRG Root X1
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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