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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

i4networks.nl · 195.246.236.60:443

Verified

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

Subject
C=NL ST=Gelderland O=I4 Networks B.V. CN=*.i4networks.nl
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA OV E36
Valid from
2026-09-23T00:00:00+00:00
Expires
2027-03-28T23:59:59+00:00
Days remaining
160
Serial (hex)
EE2F980164056162C0BC5D0569A7C40A
Signature
ecdsa-with-SHA256
Public key
EC 256 prime256v1

Subject alternative names (SAN)

DNS:*.i4networks.nl, DNS:i4networks.nl

SHA-256 fingerprint

EF:C3:46:24:6C:E9:1E:C9:65:64:B8:DB:4A:45:C9:FA:A7:C0:D3:3F:B5:59:DE:B5:4C:44:0A:2D:B3:42:06:10
Certificate extensions & PEM
authorityKeyIdentifier
4C:38:7A:25:34:6B:FD:F9:8F:1A:60:1C:92:71:AA:67:F9:82:37:EB
subjectKeyIdentifier
97:E8:9A:90:A1:3F:91:78:FF:68:AA:B5:89:25:EB:75:DB:48:82:F0
keyUsage
Digital Signature
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.1.3.4 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationCAOVE36.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCAOVE36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:*.i4networks.nl, DNS:i4networks.nl
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 46:A2:39:67:C6:0D:B6:46:87:C6:6F:3D:F9:99:94:76: 93:A6:A6:11:20:84:57:D5:55:E7:E3:D0:A1:D9:B6:46 Timestamp : Sep 23 07:27:05.803 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:CA:9F:3C:08:2E:46:38:AF:C9:66:3A: 07:6F:60:28:22:8D:F3:64:E1:F3:1A:95:A5:7C:1E:CB: 3F:F8:EF:3C:DF:02:21:00:CE:CB:79:F0:8A:4C:68:85: 17:16:8B:AE:1D:7F:9C:B2:FC:89:82:41:2C:48:50:CC: DB:05:75:75:C2:55:A9:72 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 59:6E:6C:33:86:94:B2:59:72:A2:56:C8:A0:E8:DD:90: 4A:76:E8:08:3D:DA:87:3B:01:08:38:28:14:3C:EE:59 Timestamp : Sep 23 07:27:05.867 2026 GMT Extensions: 00:00:05:00:05:65:3A:5D Signature : ecdsa-with-SHA256 30:45:02:21:00:FE:F2:E8:37:74:34:89:36:C6:A8:33: 69:80:1C:F7:37:06:61:AF:8C:8E:40:73:F2:B5:D6:D1: 49:AB:49:2A:D8:02:20:12:F5:2E:5B:90:9C:F8:BB:49: 18:E3:13:47:18:4E:0A:B1:91:33:84:7E:93:D6:AB:AF: A0:4E:1B:66:43:09:A6 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 60:4C:9A:AF:7A:7F:77:5F:01:D4:06:FC:92:0D:C8:99: EB:0B:1C:7D:F8:C9:52:1B:FA:FA:17:77:3B:97:8B:C9 Timestamp : Sep 23 07:27:06.493 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:F7:D1:5A:B6:D9:D7:7F:3F:12:83:C9: 8B:B6:F7:A2:33:4D:71:86:FD:A4:0D:77:32:A8:79:AD: 90:E5:89:AE:4A:02:20:3F:CA:B5:47:54:A1:E1:59:CF: AB:24:64:56:62:39:72:29:6C:D7:F1:23:1D:27:25:89: 6F:0F:69:1C:ED:35:14
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_CHACHA20_POLY1305_SHA256 · Checked 2026-10-19T17:36:26+00:00

Server-presented chain · 3 additional certificates

Chain certificate 1

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA OV E36
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root E46
Valid from
2021-03-22T00:00:00+00:00
Expires
2036-03-21T23:59:59+00:00
Days remaining
3441
Serial (hex)
12B0648BE8E2B91074216C1DAE9C5795
Signature
ecdsa-with-SHA384
Public key
EC 256 prime256v1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

41:02:BB:08:B7:EA:19:E5:67:EB:67:10:38:4C:54:0A:FD:AD:99:3A:F0:D9:DF:BF:91:CA:62:73:75:5B:8B:A0
Certificate extensions & PEM
authorityKeyIdentifier
D1:22:DA:4C:59:F1:4B:5F:26:38:AA:9D:D6:EE:EB:0D:C3:FB:A9:61
subjectKeyIdentifier
4C:38:7A:25:34:6B:FD:F9:8F:1A:60:1C:92:71:AA:67:F9:82:37:EB
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE, pathlen:0
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationRootE46.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationRootE46.p7c OCSP - URI:http://ocsp.sectigo.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 2

Subject
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication Root E46
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust ECC Certification Authority
Valid from
2021-03-22T00:00:00+00:00
Expires
2038-01-18T23:59:59+00:00
Days remaining
4109
Serial (hex)
1A9EAFEC6DE8E19B5C193141B68D90DD
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

EA:6B:89:ED:69:07:A2:09:FF:91:88:67:6F:B1:64:E7:AC:ED:89:4B:89:96:DF:BE:5C:E5:BB:CC:22:DE:4D:DD
Certificate extensions & PEM
authorityKeyIdentifier
3A:E1:09:86:D4:CF:19:C2:96:76:74:49:76:DC:E0:35:C6:63:63:9A
subjectKeyIdentifier
D1:22:DA:4C:59:F1:4B:5F:26:38:AA:9D:D6:EE:EB:0D:C3:FB:A9:61
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.usertrust.com/USERTrustECCCertificationAuthority.crl
authorityInfoAccess
OCSP - URI:http://ocsp.usertrust.com
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Chain certificate 3

Subject
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust ECC Certification Authority
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust ECC Certification Authority
Valid from
2010-02-01T00:00:00+00:00
Expires
2038-01-18T23:59:59+00:00
Days remaining
4109
Serial (hex)
5C8B99C55A94C5D27156DECD8980CC26
Signature
ecdsa-with-SHA384
Public key
EC 384 secp384r1

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

4F:F4:60:D5:4B:9C:86:DA:BF:BC:FC:57:12:E0:40:0D:2B:ED:3F:BC:4D:4F:BD:AA:86:E0:6A:DC:D2:A9:AD:7A
Certificate extensions & PEM
subjectKeyIdentifier
3A:E1:09:86:D4:CF:19:C2:96:76:74:49:76:DC:E0:35:C6:63:63:9A
keyUsage
Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
-----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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