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 aau.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- aau.dk
- Valid from
- Jun 8, 2026
- Valid until
- Sep 6, 2026 (47 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05746AD01FD3C4AAC6F760829C78459A7110
- SHA-256 fingerprint
- B2:30:90:A1:4E:FE:10:24:85:C6:17:22:84:30:36:D3:BC:BD:B0:8B:51:B9:98:BD:BC:60:3C:62:22:3E:FF:24
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
The serving CA (Let's Encrypt) is authorized by this domain's CAA records (godaddy.com, letsencrypt.org).