SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bio-flex.org
SSL/TLS Certificate
SSL/TLS Certificate for bio-flex.org
Untrusted chain- Issued by (CA)
- Asseco Data Systems S.A.
- Subject
- *.dytech.de
- Valid from
- Dec 29, 2025
- Valid until
- Dec 29, 2026 (99 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 129F09A6350279BA62A1C7EFE86A2FF4
- SHA-256 fingerprint
- B6:89:DE:4E:BF:CB:C6:45:11:F1:CA:08:30:B1:93:C4:F3:4D:F3:80:74:B8:C6:BB:29:A2:24:F1:37:4C:3F:3E
- Chain
- —
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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