DNS
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

t-mobile.com · 23.205.249.201:443

Verified

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

Subject
C=US ST=Washington L=Bellevue O=T-Mobile USA, Inc. CN=www.t-mobile.com
Issuer
C=US O=DigiCert Inc CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from
2026-08-03T00:00:00+00:00
Expires
2027-02-17T23:59:59+00:00
Days remaining
141
Serial (hex)
0C74C7EFF33D57DAB6A35360501A1159
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:www.t-mobile.com, DNS:t-mobile.com

SHA-256 fingerprint

F9:E7:B9:77:8D:C5:72:62:D7:9C:25:A0:94:EA:EE:8F:0F:DF:99:FB:27:1B:7D:F7:63:66:78:B4:C5:35:1C:26
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
AA:5A:DA:74:3A:78:17:E0:4E:5F:8C:33:D1:8D:85:EF:00:7B:37:A5
subjectAltName
DNS:www.t-mobile.com, DNS:t-mobile.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, TLS Web Client 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 : Aug 3 16:38:17.915 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:B0:BC:23:55:66:ED:31:88:86:CD:54: 4B:45:E7:7A:9B:26:0C:B5:4E:3B:CF:96:8F:DE:EE:2B: D6:C2:E2:68:63:02:21:00:C6:11:8C:EF:9F:DC:05:A6: 4C:9D:B7:EE:BF:46:53:79:9E:D4:A0:9C:94:D9:48:2A: 18:53:CC:12:C2:6D:56:17 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D6:D5:8D:A9:D0:17:53:F3:6A:4A:A0:C7:57:49:02:AF: EB:C7:DC:2C:D3:8C:D9:F7:64:C8:0C:89:19:1E:9F:02 Timestamp : Aug 3 16:38:17.925 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:02:C0:B8:88:6C:AF:9F:BE:75:CA:89:A5: 0B:83:AC:01:4E:EB:44:D5:CF:6A:A7:C7:7B:49:9A:86: 58:29:06:5A:02:20:17:9C:A1:FB:60:D0:CE:39:36:56: 33:C7:8B:F6:9C:15:55:FD:01:9A:F4:6C:35:C7:B8:7F: A0:3C:4A:D9:5F:C1 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 : Aug 3 16:38:18.086 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:02:47:A7:91:03:1A:2D:5B:0C:5E:F4:87: 2A:55:E0:CC:EF:4F:25:68:F0:E6:52:07:77:59:CB:E7: C8:68:C2:A3:02:20:72:9C:74:5A:46:0D:50:A8:71:60: 66:85:34:B3:FF:48:2E:A1:76:16:E8:58:FF:65:E3:A4: 47:54:14:28:D0:0B
-----BEGIN CERTIFICATE-----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=
-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-09-29T18:10:42+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
1642
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-----
MIIEyDCCA7CgAwIBAgIQDPW9BitWAvR6uFAsI8zwZjANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH
MjAeFw0yMTAzMzAwMDAwMDBaFw0zMTAzMjkyMzU5NTlaMFkxCzAJBgNVBAYTAlVT
MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxMzAxBgNVBAMTKkRpZ2lDZXJ0IEdsb2Jh
bCBHMiBUTFMgUlNBIFNIQTI1NiAyMDIwIENBMTCCASIwDQYJKoZIhvcNAQEBBQAD
ggEPADCCAQoCggEBAMz3EGJPprtjb+2QUlbFbSd7ehJWivH0+dbn4Y+9lavyYEEV
cNsSAPonCrVXOFt9slGTcZUOakGUWzUb+nv6u8W+JDD+Vu/E832X4xT1FE3LpxDy
FuqrIvAxIhFhaZAmunjZlx/jfWardUSVc8is/+9dCopZQ+GssjoP80j812s3wWPc
3kbW20X+fSP9kOhRBx5Ro1/tSUZUfyyIxfQTnJcVPAPooTncaQwywa8WV0yUR0J8
osicfebUTVSvQpmowQTCd5zWSOTOEeAqgJnwQ3DPP3Zr0UxJqyRewg2C/Uaoq2yT
zGJSQnWS+Jr6Xl6ysGHlHx+5fwmY6D36g39HaaECAwEAAaOCAYIwggF+MBIGA1Ud
EwEB/wQIMAYBAf8CAQAwHQYDVR0OBBYEFHSFgMBmx9833s+9KTeqAx2+7c0XMB8G
A1UdIwQYMBaAFE4iVCAYlebjbuYP+vq5Eu0GF485MA4GA1UdDwEB/wQEAwIBhjAd
BgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwdgYIKwYBBQUHAQEEajBoMCQG
CCsGAQUFBzABhhhodHRwOi8vb2NzcC5kaWdpY2VydC5jb20wQAYIKwYBBQUHMAKG
NGh0dHA6Ly9jYWNlcnRzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEdsb2JhbFJvb3RH
Mi5jcnQwQgYDVR0fBDswOTA3oDWgM4YxaHR0cDovL2NybDMuZGlnaWNlcnQuY29t
L0RpZ2lDZXJ0R2xvYmFsUm9vdEcyLmNybDA9BgNVHSAENjA0MAsGCWCGSAGG/WwC
ATAHBgVngQwBATAIBgZngQwBAgEwCAYGZ4EMAQICMAgGBmeBDAECAzANBgkqhkiG
9w0BAQsFAAOCAQEAkPFwyyiXaZd8dP3A+iZ7U6utzWX9upwGnIrXWkOH7U1MVl+t
wcW1BSAuWdH/SvWgKtiwla3JLko716f2b4gp/DA/JIS7w7d7kwcsr4drdjPtAFVS
slme5LnQ89/nD/7d+MS5EHKBCQRfz5eeLjJ1js+aWNJXMX43AYGyZm0pGrFmCW3R
bpD0ufovARTFXFZkAdl9h6g4U5+LXUZtXMYnhIHUfoyMo5tS58aI7Dd8KvvwVVo4
chDYABPPTHPbqjc1qCmBaZx2vN4Ye5DUys/vZwP9BFohFrH/6j/f3IL16/RZkiMN
JCqVJUzKoZHm1Lesh3Sz8W2jmdv51b2EQJ8HmA==
-----END CERTIFICATE-----

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

View certificate JSON

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