SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ciofs-scuola.org
SSL/TLS Certificate
SSL/TLS Certificate for ciofs-scuola.org
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- ciofs-scuola.org
- Valid from
- Sep 15, 2026
- Valid until
- Dec 14, 2026 (32 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05EBC7CD90AEB07D55A4511237C3F0B1143F
- SHA-256 fingerprint
- 3F:0E:1C:DC:C1:B2:88:F9:F4:5D:9D:D4:B9:CA:3C:0B:90:3B:38:8C:75:BB:4D:EB:4F:2E:C4:40:89:70:73:49
- 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.
Never get surprised by ciofs-scuola.org's certificate expiring
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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