SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
dek-em.com
SSL/TLS Certificate
SSL/TLS Certificate for dek-em.com
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- dek-em.com
- Valid from
- Dec 30, 2025
- Valid until
- Dec 30, 2026 (54 days remaining)
- Public key
- RSA 2048-bit
- Serial
- AEA31B5EAF1E4C19F664C337DBDA61AE
- SHA-256 fingerprint
- E9:81:2C:C9:AE:FA:1E:79:12:45:8F:99:E5:76:DD:28:0E:02:C4:44:EA:3F:F3:68:4F:7A:F1:54:12:5D:FB:B4
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Oct 7, 2026.
Never get surprised by dek-em.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch dek-em.com continuously, notifying you the moment anything moves across all three signals:
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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