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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

domainplatform.com · 217.18.65.35:443

Unverified
Certificate verification failed. These are unverified certificate details presented by the server. SSL operation failed with code 1. OpenSSL Error messages: error:0A000086:SSL routines::certificate verify failed
The certificate has expired.

Certificate verification failed

Subject
CN=domainplatform.com
Issuer
C=GB ST=Greater Manchester L=Salford O=Sectigo Limited CN=Sectigo RSA Domain Validation Secure Server CA
Valid from
2024-04-04T00:00:00+00:00
Expires
2025-05-05T23:59:59+00:00
Days remaining
-536
Serial (hex)
F4E1314F266F6D79FF2AF2CA5960928F
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:domainplatform.com, DNS:www.domainplatform.com

SHA-256 fingerprint

92:F5:0D:93:DA:C0:37:85:77:66:89:22:2A:4F:4E:05:1D:17:F7:92:F2:07:62:21:DF:1F:AF:9F:27:86:E8:E2
Certificate extensions & PEM
authorityKeyIdentifier
8D:8C:5E:C4:54:AD:8A:E1:77:E9:9B:F9:9B:05:E1:B8:01:8D:61:E1
subjectKeyIdentifier
DD:8C:F0:AB:9D:A9:7C:37:2A:7E:A0:9A:85:E2:DD:83:0E:98:9E:B5
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.2.7 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.1
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:domainplatform.com, DNS:www.domainplatform.com
ct_precert_scts
Signed Certificate Timestamp: Version : v1 (0x0) Log ID : CF:11:56:EE:D5:2E:7C:AF:F3:87:5B:D9:69:2E:9B:E9: 1A:71:67:4A:B0:17:EC:AC:01:D2:5B:77:CE:CC:3B:08 Timestamp : Apr 4 13:23:52.248 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:21:00:DC:24:22:5F:33:88:0F:16:CA:E6:C5: 64:8B:0E:83:66:CF:3A:7D:61:C9:10:48:9D:AA:47:69: D4:EC:E3:B3:6B:02:20:04:1A:E7:74:80:06:94:43:31: 92:7D:A3:97:71:AD:AA:53:C4:7C:66:53:99:16:11:26: 16:73:1A:74:3A:F1:E6 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : A2:E3:0A:E4:45:EF:BD:AD:9B:7E:38:ED:47:67:77:53: D7:82:5B:84:94:D7:2B:5E:1B:2C:C4:B9:50:A4:47:E7 Timestamp : Apr 4 13:23:52.146 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:46:02:21:00:98:62:53:E9:6C:93:1C:73:D0:13:85: 00:BB:4E:68:4C:F1:15:A4:AF:6B:E3:75:CF:78:F7:1F: A7:D4:C2:96:48:02:21:00:FF:CE:C0:4C:6D:5B:8B:1D: FE:47:2A:5D:D3:20:16:9C:AB:40:82:AD:04:83:C7:65: 81:2E:C4:7B:5B:03:41:AF Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 4E:75:A3:27:5C:9A:10:C3:38:5B:6C:D4:DF:3F:52:EB: 1D:F0:E0:8E:1B:8D:69:C0:B1:FA:64:B1:62:9A:39:DF Timestamp : Apr 4 13:23:52.145 2024 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:6D:5B:3E:F3:32:09:5C:4B:F6:13:1D:C4: F3:A7:E7:B7:D9:A5:A1:63:8F:EC:F1:4F:52:A3:C7:7C: 45:F8:11:94:02:21:00:93:FB:E4:7A:8E:AC:97:19:99: 13:8A:1B:92:77:DE:86:C9:BF:64:E7:C4:FE:01:F4:97: 14:B8:34:FC:E3:E7:89
-----BEGIN CERTIFICATE-----
MIIHRzCCBi+gAwIBAgIRAPThMU8mb215/yryyllgko8wDQYJKoZIhvcNAQELBQAw
gY8xCzAJBgNVBAYTAkdCMRswGQYDVQQIExJHcmVhdGVyIE1hbmNoZXN0ZXIxEDAO
BgNVBAcTB1NhbGZvcmQxGDAWBgNVBAoTD1NlY3RpZ28gTGltaXRlZDE3MDUGA1UE
AxMuU2VjdGlnbyBSU0EgRG9tYWluIFZhbGlkYXRpb24gU2VjdXJlIFNlcnZlciBD
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bWFpbnBsYXRmb3JtLmNvbTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIB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ZXJDQS5jcnQwIwYIKwYBBQUHMAGGF2h0dHA6Ly9vY3NwLnNlY3RpZ28uY29tMDUG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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-23T14:33:28+00:00

Server-presented chain · 1 additional certificate

Chain certificate 1

Subject
C=GB ST=Greater Manchester L=Salford O=Sectigo Limited CN=Sectigo RSA Domain Validation Secure Server CA
Issuer
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust RSA Certification Authority
Valid from
2018-11-02T00:00:00+00:00
Expires
2030-12-31T23:59:59+00:00
Days remaining
1530
Serial (hex)
7D5B5126B476BA11DB74160BBC530DA7
Signature
RSA-SHA384
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

7F:A4:FF:68:EC:04:A9:9D:75:28:D5:08:5F:94:90:7F:4D:1D:D1:C5:38:1B:AC:DC:83:2E:D5:C9:60:21:46:76
Certificate extensions & PEM
authorityKeyIdentifier
53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB
subjectKeyIdentifier
8D:8C:5E:C4:54:AD:8A:E1:77:E9:9B:F9:9B:05:E1:B8:01:8D:61:E1
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: 2.23.140.1.2.1
crlDistributionPoints
Full Name: URI:http://crl.usertrust.com/USERTrustRSACertificationAuthority.crl
authorityInfoAccess
CA Issuers - URI:http://crt.usertrust.com/USERTrustRSAAddTrustCA.crt OCSP - URI:http://ocsp.usertrust.com
-----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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