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THE CERTIFICATE BEHIND THE CONNECTION

TLS certificate checker.

Inspect SSL/TLS certificates for any public domain or subdomain.

Checks HTTPS on port 443, including subject alternative names, validity dates and the presented chain.

SSL certificate

TLSv1.3

outlook.com · 52.96.111.82:443

Verified

Certificate chain, hostname and dates verified using this server’s CA store.

Subject
C=US ST=Washington L=Redmond O=Microsoft Corporation CN=outlook.com
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-10-13T00:00:00+00:00
Expires
2027-04-29T23:59:59+00:00
Days remaining
175
Serial (hex)
0F322DEAD5B9B95E12395D0DAB81AACB
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

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

SHA-256 fingerprint

7B:FD:C8:D7:6D:23:73:CF:71:CD:26:F1:8A:1D:23:D8:80:29:0F:1B:46:8F:39:23:1B:F1:37:2A:C3:67:51:B3
Certificate extensions & PEM
authorityKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
subjectKeyIdentifier
4D:2C:68:D5:A7:E4:5F:99:FA:6A:81:7D:DB:BD:56:07:B8:17:A9:8B
subjectAltName
DNS:outlook.com, DNS:*.hotmail.com, DNS:*.internal.outlook.com, DNS:*.live.com, DNS:*.office.com, DNS:*.office365.com, DNS:*.outlook.com, DNS:*.outlook.office365.com, DNS:attachment.outlook.live.net, DNS:attachment.outlook.office.net, DNS:attachment.outlook.officeppe.net, DNS:attachments.office.net, DNS:attachments-sdf.office.net, DNS:ccs.login.microsoftonline.com, DNS:hotmail.com, DNS:mail.services.live.com, DNS:office365.com, DNS:outlook.office.com, DNS:substrate.office.com, DNS:substrate-sdf.office.com
certificatePolicies
Policy: 2.23.140.1.2.2 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl Full Name: URI:http://crl4.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crl
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalG2TLSRSASHA2562020CA1-1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4C:63:DC:98:E5:9C:1D:AB:88:F6:1E:8A:3D:DE:AE:8F: AB:44:A3:37:7B:5F:9B:94:C3:FB:A1:9C:FC:C1:BE:26 Timestamp : Oct 13 01:15:05.463 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:96:91:63:C6:6D:9F:CA:15:20:C0:88: 63:6E:A5:E2:B5:C0:09:61:28:87:E1:A3:53:53:2F:2D: 48:1B:A0:80:D7:02:20:36:B7:C4:CD:B7:2A:A9:FF:40: 27:5B:F7:FD:DC:85:AF:68:8B:60:22:59:1E:2C:BE:A5: 1F:70:67:61:CD:C4:5B Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 44:C2:BD:0C:E9:14:0E:64:A5:C9:4A:01:93:0A:5A:A1: BB:35:97:0E:00:EE:11:16:89:68:2A:1C:44:D7:B5:66 Timestamp : Oct 13 01:15:05.539 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:89:18:8F:EA:44:F8:48:9F:76:97:9B: 93:A1:CD:00:3C:AC:D4:D9:69:6D:73:65:C4:A6:4E:98: F6:9F:4B:9A:80:02:20:3B:48:09:EB:4E:2D:11:6A:9A: 8F:B8:5D:C1:CE:3E:0B:98:A0:BE:3E:7E:CD:37:F5:FB: 33:93:0C:64:F6:C9:EC Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 1C:9F:68:2C:E9:FA:F0:45:69:50:F8:1B:96:8A:87:DD: DB:32:10:D8:4C:E6:C8:B2:E3:82:52:4A:C4:CF:59:9F Timestamp : Oct 13 01:15:05.651 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:4B:A2:AD:E2:C2:DC:7A:20:5B:EF:B2:FD: E2:87:37:BB:DF:53:2B:75:93:1A:1A:78:78:B2:A6:29: AB:CA:D0:E9:02:21:00:BF:0E:7D:98:8D:2D:02:E8:40: 97:AE:05:15:78:0A:09:5F:B8:03:B6:F1:2F:7D:BB:75: 5E:04:68:C5:62:6C:4C
-----BEGIN CERTIFICATE-----
MIIIdTCCB12gAwIBAgIQDzIt6tW5uV4SOV0Nq4GqyzANBgkqhkiG9w0BAQsFADBZ
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMTMwMQYDVQQDEypE
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CBMKV2FzaGluZ3RvbjEQMA4GA1UEBxMHUmVkbW9uZDEeMBwGA1UEChMVTWljcm9z
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E11HK2wHeLD3NBGW0oqi5Xp9kFDvO1rQmkSJx/WknpilvaauwLsu6hUQNuI1MLGt
0hCfw+EeKzFNcLTz8r51ewDH4SYSeZ3KsrK95C0BviceMhs5mJbN7tGWLq65TSSD
w1qo6N0hMCJr3NPVMHTrspujhTSXsA8Zlci49IbPDt7XINts4JJuWduf9VaWQJdC
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bYINKi5ob3RtYWlsLmNvbYIWKi5pbnRlcm5hbC5vdXRsb29rLmNvbYIKKi5saXZl
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b22CFyoub3V0bG9vay5vZmZpY2UzNjUuY29tghthdHRhY2htZW50Lm91dGxvb2su
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dIIaYXR0YWNobWVudHMtc2RmLm9mZmljZS5uZXSCHWNjcy5sb2dpbi5taWNyb3Nv
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L0NQUzAOBgNVHQ8BAf8EBAMCBaAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwgZ8GA1Ud
HwSBlzCBlDBIoEagRIZCaHR0cDovL2NybDMuZGlnaWNlcnQuY29tL0RpZ2lDZXJ0
R2xvYmFsRzJUTFNSU0FTSEEyNTYyMDIwQ0ExLTEuY3JsMEigRqBEhkJodHRwOi8v
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aWdpY2VydC5jb20vRGlnaUNlcnRHbG9iYWxHMlRMU1JTQVNIQTI1NjIwMjBDQTEt
MS5jcnQwDAYDVR0TAQH/BAIwADCCAX4GCisGAQQB1nkCBAIEggFuBIIBagFoAHYA
TGPcmOWcHauI9h6KPd6uj6tEozd7X5uUw/uhnPzBviYAAAGhMtPTdwAABAMARzBF
AiEAlpFjxm2fyhUgwIhjbqXitcAJYSiH4aNTUy8tSBuggNcCIDa3xM23Kqn/QCdb
9/3cha9oi2AiWR4svqUfcGdhzcRbAHYARMK9DOkUDmSlyUoBkwpaobs1lw4A7hEW
iWgqHETXtWYAAAGhMtPTwwAABAMARzBFAiEAiRiP6kT4SJ92l5uToc0APKzU2Wlt
c2XEpk6Y9p9LmoACIDtICetOLRFqmo+4XcHOPguYoL4+fs039fszkwxk9snsAHYA
HJ9oLOn68EVpUPgbloqH3dsyENhM5siy44JSSsTPWZ8AAAGhMtPUMwAABAMARzBF
AiBLoq3iwtx6IFvvsv3ihze731MrdZMaGnh4sqYpq8rQ6QIhAL8OfZiNLQLoQJeu
BRV4CglfuAO28S99u3VeBGjFYmxMMA0GCSqGSIb3DQEBCwUAA4IBAQAgWM9eCGGC
rvCUAC4sOL1ECirbiHdWtJrk6TTUQHCdNzjdDaWf9BHt84l1uybS/9v0CrL+Mq/b
Mmt1M9nbZTMTn+FadOsIdIi4yWbdM0K0rUadzlwcmooFeMrqSTK+QP/2qa+zqPVO
k5mUVT+P7ElCDst+zwmmdrVmNT9N43ZzeEdAtcLj2UwFPI3KB56raRXjttLhvJVi
YXh5XMwTMAIrWB3nOt7tKiFdpHZglDNl4y2I5Z4V1WEzLYSoFxI6l2z0jCxYeOkh
URJgc4ikYfb1m3QdpUc5hU6yBdoXSbBjBbEIiD+4bg9ZY9QdjJ+SBntc/+1NwcBL
VWP0wWmcXrWY
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-11-05T05:45:12+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2021-03-30T00:00:00+00:00
Expires
2031-03-29T23:59:59+00:00
Days remaining
1605
Serial (hex)
0CF5BD062B5602F47AB8502C23CCF066
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C8:02:5F:9F:C6:5F:DF:C9:5B:3C:A8:CC:78:67:B9:A5:87:B5:27:79:73:95:79:17:46:3F:C8:13:D0:B6:25:A9
Certificate extensions & PEM
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
74:85:80:C0:66:C7:DF:37:DE:CF:BD:29:37:AA:03:1D:BE:ED:CD:17
authorityKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com CA Issuers - URI:http://cacerts.digicert.com/DigiCertGlobalRootG2.crt
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: 2.16.840.1.114412.2.1 Policy: 2.23.140.1.1 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2 Policy: 2.23.140.1.2.3
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

One endpoint on port 443. Server-presented chain; no revocation, OCSP, CT or full TLS security scan.

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