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 netlab.pt

Expired
Issued by (CA)
Let's Encrypt
Subject
netlab.pt
Valid from
Jan 17, 2026
Valid until
Apr 17, 2026 (expired 96 days ago)
Public key
EC 256-bit
Serial
05EC8021D87025E5D4C18E496A913E20E937
SHA-256 fingerprint
52:C9:99:7D:B3:87:0B:BF:A6:54:17:77:08:85:47:A9:E6:00:22:1A:80:7F:E6:83:E3:BE:F2:42:65:B7:4A:1A
Chain
E8 → ISRG Root X1
Subject Alternative Names (2)
netlab.pt, www.netlab.pt

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.