SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
swk-energie.com
SSL/TLS Certificate
SSL/TLS Certificate for swk-energie.com
Untrusted chain- Issued by (CA)
- Sectigo Limited
- Subject
- *.swk.de
- Valid from
- Oct 31, 2025
- Valid until
- Dec 1, 2026 (26 days remaining)
- Public key
- RSA 4096-bit
- Serial
- C526A42C1082FC529C88530B76F76F9E
- SHA-256 fingerprint
- C5:55:10:A0:5D:EC:B1:01:59:C9:9F:EA:70:41:CD:2D:0B:F6:04:32:F3:F5:73:34:78:CE:4A:74:49:AC:20:48
- Chain
- —
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.
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Uptime
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DNS changes
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TLS certificate
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