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 gmab.com
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- gmab.com
- Valid from
- Jul 18, 2026
- Valid until
- Oct 16, 2026 (86 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05B8E35A0A91446B09A540BF5D8B2E2DA193
- SHA-256 fingerprint
- DE:F1:3B:D1:11:4A:5B:8A:DF:EF:28:C8:0C:B6:5D:AF:4D:AF:A9:5F:C7:39:3A:D5:08:95:29:22:71:47:EB:F7
- Chain
- YR2 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.