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Results for

firefox.com

TLS certificate

The certificate is trusted and in date.

Valid67 days left

Certificate

Issuer
R12 (Let's Encrypt)
Subject
firefox.com

Validity

Valid from
May 11, 2026
Valid to
Aug 09, 2026

Connection

Protocol
TLSv1.3
Key
RSA 2048
Cipher
TLS_AES_256_GCM_SHA384 (TLSv1.3)

Subject alternative names (1)

  • firefox.com

Chain

  1. 01

    firefox.com

    issued by R12 (Let's Encrypt)

  2. 02

    R12 (Let's Encrypt)

    issued by ISRG Root X1 (Internet Security Research Group)

  3. 03

    ISRG Root X1 (Internet Security Research Group)

    root

Fingerprint

SHA-256
5F:31:57:C2:1E:40:23:76:6E:24:6B:BB:34:D0:95:59:6D:11:AE:8E:94:6D:8E:9E:F3:FA:09:BB:95:BB:0D:E3
Serial number
0677B2A8DD43A2DEAF3604B99C3111068DBC