SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
collax-shop.com
SSL/TLS Certificate
SSL/TLS Certificate for collax-shop.com
Expired- Issued by (CA)
- Sectigo Limited
- Subject
- *.linudata.de
- Valid from
- May 8, 2025
- Valid until
- Jun 8, 2026 (expired 107 days ago)
- Public key
- RSA 2048-bit
- Serial
- 3FEB02F46E63C693F559FEB09F2073EA
- SHA-256 fingerprint
- 57:11:B1:80:65:6B:39:DC:C9:78:AA:47:67:AE:34:53:AC:CA:02:33:9F:EE:58:5E:0A:60:BE:03:1F:89:C5:54
- Chain
- Sectigo RSA Organization Validation Secure Server CA → 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, 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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