SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for fhs.be
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- fhs.be
- Valid from
- Aug 26, 2025
- Valid until
- Aug 26, 2026 (22 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 5275AA3F68D56134E5E5AA7459CCB0B1
- SHA-256 fingerprint
- 7D:CE:BF:0E:3A:4F:B6:5B:19:9D:19:34:FC:10:81:C1:9C:F4:67:A7:50:B5:03:64:61:A6:71:2A:D7:9F:75:BD
- Chain
- GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021
Certificate Authority Authorization (CAA)
CAA restricts issuance to harica.org, letsencrypt.org; we couldn't map the serving CA (Hellenic Academic and Research Institutions CA) to one of these identifiers.
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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, 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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