SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
rpk56.ac.th
SSL/TLS Certificate
SSL/TLS Certificate for rpk56.ac.th
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.rpk56.ac.th
- Valid from
- Jun 18, 2026
- Valid until
- Sep 16, 2026 (58 days remaining)
- Public key
- EC 384-bit
- Serial
- 0521628A8627731813F1A5243E6BE9F0F455
- SHA-256 fingerprint
- 38:01:57:D7:C1:A2:00:42:45:F2:B3:DB:F9:8D:8F:E7:D0:7B:1A:23:5D:73:97:2D:69:D4:BF:2F:67:4F:6A:06
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.