DNS
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

merckel.fr · 154.49.236.51:443

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 expires within 30 days.

Certificate verification failed

Subject
C=FR ST=Grand-Est O=MERCKEL CN=*.merckel.fr
Issuer
C=GB O=Sectigo Limited CN=Sectigo Public Server Authentication CA OV R36
Valid from
2026-04-28T00:00:00+00:00
Expires
2026-11-12T23:59:59+00:00
Days remaining
23
Serial (hex)
0B03842998719E4D7F31348CE71C8043
Signature
RSA-SHA256
Public key
RSA 4096

Subject alternative names (SAN)

DNS:*.merckel.fr, DNS:merckel.fr

SHA-256 fingerprint

F0:1E:06:25:A0:AE:34:9C:DD:CA:14:81:21:04:22:D4:CA:7E:78:D2:A9:AE:B7:33:04:E7:92:47:67:30:93:FE
Certificate extensions & PEM
authorityKeyIdentifier
E3:66:74:BB:70:68:8D:2C:5D:4E:0E:A6:4A:8F:9B:37:22:9C:82:92
subjectKeyIdentifier
C3:A8:10:6F:C0:AE:69:F1:DD:81:5D:52:2D:AD:A4:9C:7D:3B:F3:B3
keyUsage
Digital Signature, Key Encipherment
basicConstraints
CA:FALSE
extendedKeyUsage
TLS Web Server Authentication, TLS Web Client Authentication
certificatePolicies
Policy: 1.3.6.1.4.1.6449.1.2.1.3.4 CPS: https://sectigo.com/CPS Policy: 2.23.140.1.2.2
crlDistributionPoints
Full Name: URI:http://crl.sectigo.com/SectigoPublicServerAuthenticationCAOVR36.crl
authorityInfoAccess
CA Issuers - URI:http://crt.sectigo.com/SectigoPublicServerAuthenticationCAOVR36.crt OCSP - URI:http://ocsp.sectigo.com
subjectAltName
DNS:*.merckel.fr, DNS:merckel.fr
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 : Apr 28 12:32:25.603 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:44:02:20:4F:32:17:28:96:3D:CB:DB:00:08:72:CB: B3:8D:77:D6:91:F8:CD:53:DF:B0:31:15:F2:AF:66:6D: C1:BB:18:8E:02:20:53:B2:B0:12:49:A2:58:19:23:F7: 12:93:74:9F:6B:05:C5:56:8A:D4:72:90:80:73:C0:23: A6:44:44:AE:B2:68 Signed Certificate Timestamp: Version : v1 (0x0) Log ID : C8:A3:C4:7F:C7:B3:AD:B9:35:6B:01:3F:6A:7A:12:6D: E3:3A:4E:43:A5:C6:46:F9:97:AD:39:75:99:1D:CF:9A Timestamp : Apr 28 12:32:25.622 2026 GMT Extensions: none Signature : ecdsa-with-SHA256 30:45:02:20:23:C5:1B:A2:DB:AB:1D:EF:D1:6E:7F:47: 81:60:93:2F:AF:74:8C:A2:39:B8:FF:CA:23:F2:C7:D9: 9E:8D:04:D1:02:21:00:C3:CD:38:A2:85:0B:FC:0F:E8: 34:96:FE:43:23:F3:15:7D:1B:2F:B2:DD:E9:25:B2:3E: 69:1D:13:ED:33:F0:5C Signed Certificate Timestamp: Version : v1 (0x0) Log ID : 6C:FE:50:19:43:A8:5E:A9:16:BC:52:D1:33:E4:DC:C9: 1E:F1:41:1C:7D:25:84:20:D1:73:80:9E:18:18:EB:3A Timestamp : Apr 28 12:32:26.151 2026 GMT Extensions: 00:00:05:00:09:1A:BD:58 Signature : ecdsa-with-SHA256 30:45:02:20:62:FF:5C:EF:59:A8:BB:5C:F3:93:02:4D: FC:0C:44:BA:5D:FF:96:5B:75:A3:2E:51:6F:1B:2A:E7: 14:B8:48:A3:02:21:00:B5:F3:4D:8D:D5:6F:15:F1:18: 95:0D:07:16:3D:82:B3:44:AF:08:B4:49:D6:56:1B:73: B2:E7:C8:A9:78:6C:82
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Cipher: TLS_AES_256_GCM_SHA384 · Checked 2026-10-20T14:43:54+00:00

Server-presented chain · 2 additional certificates

Chain certificate 1

Subject
C=GB ST=Greater Manchester L=Salford O=Sectigo Limited CN=Sectigo RSA Organization 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
1533
Serial (hex)
137D539CAA7C31A9A433701968847A8D
Signature
RSA-SHA384
Public key
RSA 2048

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

72:A3:4A:C2:B4:24:AE:D3:F6:B0:B0:47:55:B8:8C:C0:27:DC:CC:80:6F:DD:B2:2B:4C:D7:C4:77:73:97:3E:C0
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
17:D9:D6:25:27:67:F9:31:C2:49:43:D9:30:36:44:8C:6C:A9:4F: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.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-----

Chain certificate 2

Subject
C=US ST=New Jersey L=Jersey City O=The USERTRUST Network CN=USERTrust RSA Certification Authority
Issuer
C=GB ST=Greater Manchester L=Salford O=Comodo CA Limited CN=AAA Certificate Services
Valid from
2019-03-12T00:00:00+00:00
Expires
2028-12-31T23:59:59+00:00
Days remaining
803
Serial (hex)
3972443AF922B751D7D36C10DD313595
Signature
RSA-SHA384
Public key
RSA 4096

Subject alternative names (SAN)

No SAN extension was presented.

SHA-256 fingerprint

68:B9:C7:61:21:9A:5B:1F:01:31:78:44:74:66:5D:B6:1B:BD:B1:09:E0:0F:05:CA:9F:74:24:4E:E5:F5:F5:2B
Certificate extensions & PEM
authorityKeyIdentifier
A0:11:0A:23:3E:96:F1:07:EC:E2:AF:29:EF:82:A5:7F:D0:30:A4:B4
subjectKeyIdentifier
53:79:BF:5A:AA:2B:4A:CF:54:80:E1:D8:9B:C0:9D:F2:B2:03:66:CB
keyUsage
Digital Signature, Certificate Sign, CRL Sign
basicConstraints
CA:TRUE
certificatePolicies
Policy: X509v3 Any Policy
crlDistributionPoints
Full Name: URI:http://crl.comodoca.com/AAACertificateServices.crl
authorityInfoAccess
OCSP - URI:http://ocsp.comodoca.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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