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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

TLSv1.2

root.lu · 195.26.5.100:443

Verified

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

Subject
CN=*.root.lu
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Valid from
2025-12-16T00:00:00+00:00
Expires
2026-12-15T23:59:59+00:00
Days remaining
77
Serial (hex)
07B57D3612055F31BE2D4F9539485684
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.root.lu, DNS:root.lu

SHA-256 fingerprint

54:B0:D8:CA:3F:9D:66:58:DD:07:B8:F8:BF:D5:51:CB:4A:9C:0E:A2:DC:60:94:3B:C6:E0:77:42:48:64:BB:5C
Certificate extensions & PEM
authorityKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
subjectKeyIdentifier
2E:DC:F7:B8:50:E6:B9:E6:08:E7:68:31:76:E7:B0:DA:39:E3:7F:CD
subjectAltName
DNS:*.root.lu, DNS:root.lu
certificatePolicies
Policy: 2.23.140.1.2.1 CPS: http://www.digicert.com/CPS
keyUsage
Digital Signature, Key Encipherment
extendedKeyUsage
TLS Web Server Authentication
crlDistributionPoints
Full Name: URI:http://cdp.rapidssl.com/RapidSSLTLSRSACAG1.crl
authorityInfoAccess
OCSP - URI:http://status.rapidssl.com CA Issuers - URI:http://cacerts.rapidssl.com/RapidSSLTLSRSACAG1.crt
basicConstraints
CA:FALSE
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : D7:6D:7D:10:D1:A7:F5:77:C2:C7:E9:5F:D7:00:BF:F9: 82:C9:33:5A:65:E1:D0:B3:01:73:17:C0:C8:C5:69:77 Timestamp : Dec 16 22:57:50.962 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:0F:1E:FE:A4:E2:51:24:05:F3:4C:FA:9F: 01:E7:1D:6A:4D:1A:BB:BF:01:2E:92:F6:72:C4:98:A9: BC:88:90:70:02:20:0F:75:E9:55:13:4B:97:25:53:F4: 71:8F:50:10:4A:20:7F:5C:26:B4:15:9A:CF:EE:9F:C9: E1:09:9B:E3:6E:54 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 : Dec 16 22:57:51.107 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:CE:C6:C8:4E:22:41:8D:05:10:FA:7F: 01:10:72:87:4F:67:F1:83:0B:AB:A4:B2:5C:1C:F6:D2: B4:73:85:BE:D9:02:20:4E:C6:65:10:2D:DF:95:A1:22: 22:12:7D:42:62:D6:F9:CA:E3:65:90:1A:61:DF:4D:E6: 89:81:34:F8:F9:A0:E5 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB: C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD Timestamp : Dec 16 22:57:50.897 2025 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:4B:33:EC:4B:67:E1:B9:D0:52:D9:55:76: B0:B8:CB:0B:B9:0E:43:A2:E8:5B:1D:23:FA:2C:5D:18: D2:A5:1C:12:02:20:41:82:A1:62:78:3E:D5:F6:A0:7A: F9:8B:DA:CF:8B:1A:7E:B5:59:E1:3C:69:4C:D2:B9:31: 1C:A6:10:CE:FE:C0
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: ECDHE-RSA-AES256-GCM-SHA384 · Checked 2026-09-29T04:26:54+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=RapidSSL TLS RSA CA G1
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2017-11-02T12:24:33+00:00
Expires
2027-11-02T12:24:33+00:00
Days remaining
399
Serial (hex)
0B259422CED9812A15A04E99528A0EFA
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

44:22:E9:63:EE:53:CD:58:CC:9F:85:CD:40:BF:5F:FE:C0:09:5F:DF:1A:15:45:35:66:1C:1C:06:BC:AD:C6:9B
Certificate extensions & PEM
subjectKeyIdentifier
0C:DB:6C:82:49:0F:4A:67:0A:B8:14:EE:7A:C4:48:52:88:EB:56:38
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: 2.16.840.1.114412.1.1 CPS: https://www.digicert.com/CPS Policy: 2.16.840.1.114412.1.2 Policy: 2.23.140.1.2.1 Policy: 2.23.140.1.2.2
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Issuer
C=US O=DigiCert Inc OU=www.digicert.com CN=DigiCert Global Root G2
Valid from
2013-08-01T12:00:00+00:00
Expires
2038-01-15T12:00:00+00:00
Days remaining
4126
Serial (hex)
033AF1E6A711A9A0BB2864B11D09FAE5
Signature
RSA-SHA256
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

CB:3C:CB:B7:60:31:E5:E0:13:8F:8D:D3:9A:23:F9:DE:47:FF:C3:5E:43:C1:14:4C:EA:27:D4:6A:5A:B1:CB:5F
Certificate extensions & PEM
basicConstraints
CA:TRUE
keyUsage
Digital Signature, Certificate Sign, CRL Sign
subjectKeyIdentifier
4E:22:54:20:18:95:E6:E3:6E:E6:0F:FA:FA:B9:12:ED:06:17:8F:39
-----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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