SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for r-tk.net
Expired- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.r-tk.net
- Valid from
- May 23, 2017
- Valid until
- May 24, 2018 (expired 2981 days ago)
- Public key
- RSA 4096-bit
- Serial
- 27BEA876B9D0AE67E7E69B4C
- SHA-256 fingerprint
- C6:94:60:C9:B2:0F:27:75:E0:98:88:C7:F1:DB:3B:E4:A4:21:3C:85:E8:51:FA:F6:11:F9:09:B4:FE:7A:43:37
- 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 Jul 21, 2026.