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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

gmail.com · 142.251.39.133:443

Verified

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

Subject
CN=gmail.com
Issuer
C=US O=Google Trust Services CN=WE2
Valid from
2026-10-07T19:09:06+00:00
Expires
2026-12-30T19:09:05+00:00
Days remaining
55
Serial (hex)
333250AB8492111A126B8DF5DC7295A0
Signature
ecdsa-with-SHA256
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:gmail.com, DNS:*.gmail.com

SHA-256 fingerprint

50:7D:88:2E:F8:93:CD:74:D9:B1:32:7A:6C:90:7B:8F:6E:0F:A0:D0:0D:46:A9:B8:A8:57:7D:41:02:D9:86:DB
Certificate extensions & PEM
keyUsage
Digital Signature
extendedKeyUsage
TLS Web Server Authentication
basicConstraints
CA:FALSE
subjectKeyIdentifier
23:A6:C7:93:BE:6B:CF:37:87:BE:5D:5A:E4:31:FF:66:68:29:C2:77
authorityKeyIdentifier
75:BE:C4:77:AE:89:F6:44:37:7D:CF:B1:68:1F:1D:1A:EB:DC:34:59
authorityInfoAccess
CA Issuers - URI:http://i.pki.goog/we2.crt
subjectAltName
DNS:gmail.com, DNS:*.gmail.com
certificatePolicies
Policy: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://c.pki.goog/we2/xuzt3PU9F_w.crl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : AF:67:88:3B:57:B0:4E:DD:8F:A6:D9:7E:F6:2E:A8:EB: 81:0A:C7:71:60:F0:24:5E:55:D6:0C:2F:E7:85:87:3A Timestamp : Oct 7 20:09:07.679 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:7F:C6:66:AB:76:76:66:41:87:9D:E1:3C: 34:A3:29:5E:1F:76:56:30:5F:B4:95:04:4B:28:17:C6: 1D:BC:C3:1A:02:20:2C:A5:9E:D5:45:1E:1B:FC:B3:7F: 46:A5:EE:02:CB:E2:A0:70:07:EC:6B:A0:7D:83:DE:5C: D8:B3:A4:A8:07:94 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:AF:86:3D:3B:3E:E5:9F:A5:77:DE:A8:24:5D:36:B0: D9:ED:22:A2:23:F4:61:77:41:22:94:52:EE:95:50:5F Timestamp : Oct 7 20:09:08.735 2026 GMT Extensions: 00:00:05:00:3A:99:09:77 Signature : ecdsa-with-SHA256 30:44:02:20:15:B2:A2:AE:FB:C3:7F:B1:A6:B4:D7:D2: 1C:1D:33:1D:2C:6F:70:A3:22:B3:47:5D:B6:D2:00:B5: 8B:FC:BD:25:02:20:58:89:A6:6C:66:69:85:95:B9:0E: C0:4C:53:56:33:E9:4E:79:3A:05:C8:9D:61:0C:6A:1D: 57:A6:14:A6:4B:E6
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_128_GCM_SHA256 · Checked 2026-11-05T03:24:01+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=Google Trust Services CN=WE2
Issuer
C=US O=Google Trust Services LLC CN=GTS Root R4
Valid from
2023-12-13T09:00:00+00:00
Expires
2029-02-20T14:00:00+00:00
Days remaining
838
Serial (hex)
7FF32D6B409D15D5965B05873A7C72E0
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

9C:3F:2F:D1:1C:57:D7:C6:49:AD:5A:09:32:C0:F0:D2:97:56:F6:A0:A1:C7:4C:43:E1:E8:9A:62:D6:4C:D3:20
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE, pathlen:0
subjectKeyIdentifier
75:BE:C4:77:AE:89:F6:44:37:7D:CF:B1:68:1F:1D:1A:EB:DC:34:59
authorityKeyIdentifier
80:4C:D6:EB:74:FF:49:36:A3:D5:D8:FC:B5:3E:C5:6A:F0:94:1D:8C
authorityInfoAccess
CA Issuers - URI:http://i.pki.goog/r4.crt
crlDistributionPoints
Full Name: URI:http://c.pki.goog/r/r4.crl
certificatePolicies
Policy: 2.23.140.1.2.1
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=Google Trust Services LLC CN=GTS Root R4
Issuer
C=BE O=GlobalSign nv-sa OU=Root CA CN=GlobalSign Root CA
Valid from
2023-11-15T03:43:21+00:00
Expires
2028-01-28T00:00:42+00:00
Days remaining
448
Serial (hex)
7FE530BF331343BEDD821610493D8A1B
Signature
RSA-SHA256
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

76:B2:7B:80:A5:80:27:DC:3C:F1:DA:68:DA:C1:70:10:ED:93:99:7D:0B:60:3E:2F:AD:BE:85:01:24:93:B5:A7
Certificate extensions & PEM
keyUsage
Digital Signature, Certificate Sign, CRL Sign
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
basicConstraints
CA:TRUE
subjectKeyIdentifier
80:4C:D6:EB:74:FF:49:36:A3:D5:D8:FC:B5:3E:C5:6A:F0:94:1D:8C
authorityKeyIdentifier
60:7B:66:1A:45:0D:97:CA:89:50:2F:7D:04:CD:34:A8:FF:FC:FD:4B
authorityInfoAccess
CA Issuers - URI:http://i.pki.goog/gsr1.crt
crlDistributionPoints
Full Name: URI:http://c.pki.goog/r/gsr1.crl
certificatePolicies
Policy: 2.23.140.1.2.1
-----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.

View certificate JSON

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