SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
stm-sas.it
SSL/TLS Certificate
SSL/TLS Certificate for stm-sas.it
Valid- Issued by (CA)
- Google Trust Services
- Subject
- stm-sas.it
- Valid from
- Jul 7, 2026
- Valid until
- Oct 5, 2026 (63 days remaining)
- Public key
- EC 256-bit
- Serial
- 5B73D62D6D25718513A20602747A73B3
- SHA-256 fingerprint
- 90:01:C8:7C:21:5B:75:F5:E0:B4:DE:F5:02:03:29:57:E0:66:13:FF:58:4D:65:8E:91:24:32:55:FA:AF:53:51
- Chain
- WE1 → GTS Root R4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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This is today's certificate. Turn on monitoring and we'll watch stm-sas.it continuously, notifying you the moment anything moves across all three signals:
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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