SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
utwentecareers.nl
SSL/TLS Certificate
SSL/TLS Certificate for utwentecareers.nl
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- utwentecareers.nl
- Valid from
- Jul 22, 2026
- Valid until
- Feb 6, 2027 (198 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 06AE7048AC9D8362FAFBDF73DA3B9A84
- SHA-256 fingerprint
- D7:2A:3E:96:31:B3:7C:34:F8:17:8F:50:28:40:89:DB:47:A7:DE:89:0A:34:EC:90:8E:F9:E3:59:48:97:25:0D
- Chain
- GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021 → Hellenic Academic and Research Institutions RootCA 2015
Certificate Authority Authorization (CAA)
CAA restricts issuance to harica.gr, 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
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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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