SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
deko-design.com
SSL/TLS Certificate
SSL/TLS Certificate for deko-design.com
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.deko-design.com
- Valid from
- Jun 17, 2026
- Valid until
- Jan 1, 2027 (115 days remaining)
- Public key
- RSA 2048-bit
- Serial
- D94660C3D222E3523D715F45291CA76C
- SHA-256 fingerprint
- CC:1B:3B:56:F0:BF:FD:C7:23:46:00:99:FB:B7:86:D0:B0:A9:D3:55:8F:4D:31:CB:41:4A:BD:19:A9:DF:8F:21
- 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.
This certificate has been served since Aug 23, 2026.
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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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