Verdict
Valid & trusted
- Trusted chain
- yes
- Name matches
- yes
- Expires
- 2027-01-10 86 days
- Connection
- TLSv1.3 · TLS_AES_256_GCM_SHA384
- Server IP
- 52.98.252.82
SSL / TLS check
outlook.office365.com:993
Certificate, chain, expiry and supported TLS versions. Ports 25, 587, 143 and 110 use STARTTLS automatically.
TLS versions
- TLS 1.3enabled
- TLS 1.2enabled
- TLS 1.1disabled
- TLS 1.0disabled
Certificate
- Subject
- outlook.com
- Issuer
- DigiCert Global G2 TLS RSA SHA256 2020 CA1 · DigiCert
- Valid
- 2026-06-26 – 2027-01-10
- Names
- 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
- Key
- RSA 2048 bit
- Serial
- 0E371D2766FD365DADDCF4004297839E
- SHA-256
- 7C:25:36:90:B4:0A:77:B8:87:7B:07:B9:62:10:47:F7:1A:17:98:10:EC:53:6F:40:C6:9D:53:4E:86:CE:97:BA
Chain as sent by the server
- outlook.comServer certificate · issued by DigiCert Global G2 TLS RSA SHA256 2020 CA1 (DigiCert) · until 2027-01-10
- DigiCert Global G2 TLS RSA SHA256 2020 CA1Intermediate · issued by DigiCert Global Root G2 (DigiCert) · until 2031-03-29
- DigiCert Global Root G2Root · issued by DigiCert Global Root G2 (DigiCert) · until 2038-01-15
Same in the terminal
$ curl tools.otw.solutions/ssl/outlook.office365.com:993Checked in 82 ms.