SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ondes-cem.org
SSL/TLS Certificate
SSL/TLS Certificate for ondes-cem.org
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.ondes-cem.org
- Valid from
- Oct 8, 2026
- Valid until
- Apr 20, 2027 (167 days remaining)
- Public key
- RSA 2048-bit
- Serial
- AE2B7860908F125A6CA20EB02175D06E
- SHA-256 fingerprint
- 73:81:43:1E:D9:D2:C6:D9:35:30:56:86:69:AC:6A:19:B1:65:FB:AD:32:D5:BE:CC:83:F5:41:E3:6E:4E:43:AD
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
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, 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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