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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

tenaris.com · 40.123.47.58:443

Verified

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

Subject
CN=tenaris.com
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Valid from
2026-10-02T00:00:00+00:00
Expires
2027-04-02T23:59:59+00:00
Days remaining
175
Serial (hex)
083F55FFE1905C01E2FBF6F0F20A2E2C
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

DNS:tenaris.com

SHA-256 fingerprint

57:A6:12:EE:FB:48:92:AF:61:9A:16:94:A8:DA:7A:9B:87:06:2A:71:29:F4:CA:71:15:4A:8D:C2:9F:F1:20:A5
Certificate extensions & PEM
authorityKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
subjectKeyIdentifier
17:86:EE:95:A5:F3:5E:26:33:98:6B:32:6F:06:CC:9A:DE:F3:01:AC
subjectAltName
DNS:tenaris.com
certificatePolicies
Policy: 2.23.140.1.2.1 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://cdp.geotrust.com/GeoTrustTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.geotrust.com CA Issuers - URI:http://cacerts.geotrust.com/GeoTrustTLSRSACAG1.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 2 01:41:32.124 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:05:08:0A:83:98:B0:59:1D:81:1F:8D:50: 1A:F8:4D:FB:21:EF:01:34:D1:28:93:4B:C5:64:B6:7C: 5B:7D:47:10:02:20:07:53:E1:C6:7C:67:57:6F:FE:CB: D3:D3:58:22:D7:E6:2D:80:C0:1C:74:4B:BD:D8:2F:25: 35:B1:D1:E2:5F:F8 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 : Oct 2 01:41:32.131 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:85:D3:B8:6D:8E:4B:C3:02:5A:81:5A: 55:62:F9:EC:E0:20:F8:E9:7E:77:21:CE:4D:54:57:F7: FA:24:26:2E:27:02:21:00:BE:BF:70:11:C2:8C:C6:9C: C6:9A:D3:53:12:88:51:E7:99:99:D5:84:0C:45:95:79: E8:E4:0E:69:51:89:39:99 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 2 01:41:32.217 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:B0:99:22:3B:42:5F:7E:AF:4D:79:00: EC:37:21:0F:DA:53:1C:F2:F1:B4:DA:75:1D:4C:EE:BC: 73:1B:55:B3:4E:02:21:00:8D:27:F6:EC:85:18:46:93: D6:28:F3:81:6D:69:CF:70:81:81:CF:DC:8A:B8:4F:3D: C8:A9:FD:61:F8:C6:38:7A
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-09T15:44:44+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=GeoTrust TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:23:37+00:00
Expires
2027-11-02T12:23:37+00:00
Days remaining
388
Serial (hex)
0D07782A133FC6F9A57296E131FFD179
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

C0:6E:30:7F:7C:FC:1D:32:FA:72:A4:C0:33:C8:7B:90:01:9A:F2:16:F0:77:5D:64:97:8A:2E:CA:6C:8A:23:0E
Certificate extensions & PEM
subjectKeyIdentifier
94:4F:D4:5D:8B:E4:A4:E2:A6:80:FE:FD:D8:F9:00:EF:A3:BE:02:57
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
basicConstraints
CA:TRUE, pathlen:0
authorityInfoAccess
OCSP - URI:http://ocsp.digicert.com
crlDistributionPoints
Full Name: URI:http://crl3.digicert.com/DigiCertGlobalRootG2.crl
certificatePolicies
Policy: X509v3 Any Policy CPS: https://www.digicert.com/CPS
-----BEGIN CERTIFICATE-----
MIIEjTCCA3WgAwIBAgIQDQd4KhM/xvmlcpbhMf/ReTANBgkqhkiG9w0BAQsFADBh
MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3
d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBH
MjAeFw0xNzExMDIxMjIzMzdaFw0yNzExMDIxMjIzMzdaMGAxCzAJBgNVBAYTAlVT
MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j
b20xHzAdBgNVBAMTFkdlb1RydXN0IFRMUyBSU0EgQ0EgRzEwggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQC+F+jsvikKy/65LWEx/TMkCDIuWegh1Ngwvm4Q
yISgP7oU5d79eoySG3vOhC3w/3jEMuipoH1fBtp7m0tTpsYbAhch4XA7rfuD6whU
gajeErLVxoiWMPkC/DnUvbgi74BJmdBiuGHQSd7LwsuXpTEGG9fYXcbTVN5SATYq
DfbexbYxTMwVJWoVb6lrBEgM3gBBqiiAiy800xu1Nq07JdCIQkBsNpFtZbIZhsDS
fzlGWP4wEmBQ3O67c+ZXkFr2DcrXBEtHam80Gp2SNhou2U5U7UesDL/xgLK6/0d7
6TnEVMSUVJkZ8VeZr+IUIlvoLrtjLbqugb0T3OYXW+CQU0kBAgMBAAGjggFAMIIB
PDAdBgNVHQ4EFgQUlE/UXYvkpOKmgP792PkA76O+AlcwHwYDVR0jBBgwFoAUTiJU
IBiV5uNu5g/6+rkS7QYXjzkwDgYDVR0PAQH/BAQDAgGGMB0GA1UdJQQWMBQGCCsG
AQUFBwMBBggrBgEFBQcDAjASBgNVHRMBAf8ECDAGAQH/AgEAMDQGCCsGAQUFBwEB
BCgwJjAkBggrBgEFBQcwAYYYaHR0cDovL29jc3AuZGlnaWNlcnQuY29tMEIGA1Ud
HwQ7MDkwN6A1oDOGMWh0dHA6Ly9jcmwzLmRpZ2ljZXJ0LmNvbS9EaWdpQ2VydEds
b2JhbFJvb3RHMi5jcmwwPQYDVR0gBDYwNDAyBgRVHSAAMCowKAYIKwYBBQUHAgEW
HGh0dHBzOi8vd3d3LmRpZ2ljZXJ0LmNvbS9DUFMwDQYJKoZIhvcNAQELBQADggEB
AIIcBDqC6cWpyGUSXAjjAcYwsK4iiGF7KweG97i1RJz1kwZhRoo6orU1JtBYnjzB
c4+/sXmnHJk3mlPyL1xuIAt9sMeC7+vreRIF5wFBC0MCN5sbHwhNN1JzKbifNeP5
ozpZdQFmkCo+neBiKR6HqIA+LMTMCMMuv2khGGuPHmtDze4GmEGZtYLyF8EQpa5Y
jPuV6k2Cr/N3XxFpT3hRpt/3usU/Zb9wfKPtWpoznZ4/44c1p9rzFcZYrWkj3A+7
TNBJE0GmP2fhXhP1D/XVfIW/h0yCJGEiV9Glm/uGOa3DXHlmbAcxSyCRraG+ZBkA
7h4SeM6Y8l/7MBRpPCz6l8Y=
-----END CERTIFICATE-----

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

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