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Results for

outlook.com

TLS certificate

The certificate is trusted and in date.

Valid124 days left

Certificate

Issuer
DigiCert Global G2 TLS RSA SHA256 2020 CA1 (DigiCert Inc)
Subject
outlook.com

Validity

Valid from
Mar 18, 2026
Valid to
Oct 02, 2026

Connection

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

Subject alternative names (20)

  • outlook.com
  • *.hotmail.com
  • *.internal.outlook.com
  • *.live.com
  • *.office.com
  • *.office365.com
  • *.outlook.com
  • *.outlook.office365.com
  • attachment.outlook.live.net
  • attachment.outlook.office.net
  • attachment.outlook.officeppe.net
  • attachments.office.net
  • attachments-sdf.office.net
  • ccs.login.microsoftonline.com
  • hotmail.com
  • mail.services.live.com
  • office365.com
  • outlook.office.com
  • substrate.office.com
  • substrate-sdf.office.com

Chain

  1. 01

    outlook.com (Microsoft Corporation)

    issued by DigiCert Global G2 TLS RSA SHA256 2020 CA1 (DigiCert Inc)

  2. 02

    DigiCert Global G2 TLS RSA SHA256 2020 CA1 (DigiCert Inc)

    issued by DigiCert Global Root G2 (DigiCert Inc)

  3. 03

    DigiCert Global Root G2 (DigiCert Inc)

    root

Fingerprint

SHA-256
39:4E:11:4F:96:01:99:6C:0A:53:4B:8D:66:4C:90:6B:AB:7C:B6:F7:F5:8C:5F:24:49:F1:34:08:DA:B5:A0:DF
Serial number
0590CBD365667F4104A9A2690C5B7C73