Namecheap.com

SSL Checker

Submit the Hostname and Port in the fields below. This checker supports SNI and STARTTLS.

Report

Hostname: Matches Common Name or/and SAN
Expired: No (211 days till expiration)
Public Key: We were unable to find any issues in the public key of end-entity certificate
Trusted: Yes, we were able to verify the certificate
Self-Signed: No, the end-entity certificate is not self-signed
Chain Issues: No, we were unable to detect any issues in the certificate chain sent by the server
Weak signatures: No, certificates sent by the server were not signed utilizing a weak hash function
OCSP Status: OCSP Responder returned "good" status for the end-entity certificate

DNS Information

Resolves To: 193.175.100.223
Reverse IP lookup: prodche-03.dnb.de.
Nameserver: dns.globvill.de.
Nameserver: ns0.dnb.de.
Nameserver: ns1.dnb.de.

General Information

Common Name: d-nb.info
SANs: DNS:d-nb.info Total number of SANs: 1
Organization: Deutsche Nationalbibliothek
Locality: Frankfurt am Main
Signature Algorithm: sha256WithRSAEncryption
Key Type: RSA
Key size: 2048 bits
Serial Number: 22a52c16b0ca562ecf569882
Not Before: Apr 02, 2020 09:21:11 GMT
Not After: Jul 05, 2022 09:21:11 GMT
Number of certs: 3
Revocation Status: good
OCSP Stapling: Supported
Server: Apache
HSTS: max-age=15552000
HPKP: Not Supported

Chain Information

Certificate # 1 - Common Name: d-nb.info

Decode this certificate for verbose information →
Subject Common Name d-nb.info
Subject Organization Deutsche Nationalbibliothek
Issuer Common Name DFN-Verein Global Issuing CA
Issuer Organization Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.
Not Before: Apr 02, 2020 09:21:11 GMT
Not After: Jul 05, 2022 09:21:11 GMT
Signature Algorithm: sha256WithRSAEncryption
Serial Number: 22a52c16b0ca562ecf569882
SHA1 Fingerprint: 0B:81:C0:4F:74:EF:AE:4D:81:F1:B6:C7:57:2C:0A:C4:1F:69:9A:D5
MD5 Fingerprint: 2C:5B:0D:19:26:2B:D9:98:5F:84:62:F9:AB:3B:DC:9C

Certificate # 2 - Common Name: DFN-Verein Global Issuing CA

Decode this certificate for verbose information →
In place? Yes, this certificate directly certifies the preceding one
Subject Common Name DFN-Verein Global Issuing CA
Subject Organization Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.
Issuer Common Name DFN-Verein Certification Authority 2
Issuer Organization Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.
Not Before: May 24, 2016 11:38:40 GMT
Not After: Feb 22, 2031 23:59:59 GMT
Signature Algorithm: sha256WithRSAEncryption
Serial Number: 1b63bad01e2c3d
SHA1 Fingerprint: C9:DC:B0:47:AC:8C:5F:09:05:ED:77:52:8C:BD:4B:84:D9:46:3C:45
MD5 Fingerprint: A8:CC:27:84:14:53:5B:6A:86:74:84:67:8B:8A:42:05

Certificate # 3 - Common Name: DFN-Verein Certification Authority 2

Decode this certificate for verbose information →
In place? Yes, this certificate directly certifies the preceding one
Subject Common Name DFN-Verein Certification Authority 2
Subject Organization Verein zur Foerderung eines Deutschen Forschungsnetzes e. V.
Issuer Common Name T-TeleSec GlobalRoot Class 2
Issuer Organization T-Systems Enterprise Services GmbH
Not Before: Feb 22, 2016 13:38:22 GMT
Not After: Feb 22, 2031 23:59:59 GMT
Signature Algorithm: sha256WithRSAEncryption
Serial Number: e30bd5f8af25d981
SHA1 Fingerprint: E2:24:BE:F6:D7:86:22:0D:26:2B:B8:07:AB:6D:AC:F9:D3:A8:9A:93
MD5 Fingerprint: 79:F3:69:38:29:87:8E:E1:89:AE:EE:D6:E9:AB:8E:5F

OpenSSL Handshake

depth=3 C = DE, O = T-Systems Enterprise Services GmbH, OU = T-Systems Trust Center, CN = T-TeleSec GlobalRoot Class 2
verify return:1
depth=2 C = DE, O = Verein zur Foerderung eines Deutschen Forschungsnetzes e. V., OU = DFN-PKI, CN = DFN-Verein Certification Authority 2
verify return:1
depth=1 C = DE, O = Verein zur Foerderung eines Deutschen Forschungsnetzes e. V., OU = DFN-PKI, CN = DFN-Verein Global Issuing CA
verify return:1
depth=0 C = DE, ST = Hessen, L = Frankfurt am Main, O = Deutsche Nationalbibliothek, OU = Informationsinfrastruktur, CN = d-nb.info
verify return:1
CONNECTED(00000003)
OCSP response: 
======================================
OCSP Response Data:
    OCSP Response Status: successful (0x0)
    Response Type: Basic OCSP Response
    Version: 1 (0x0)
    Responder Id: C = DE, ST = Berlin, L = Berlin, O = Verein zur Foerderung eines Deutschen Forschungsnetzes e. V., OU = DFN-PKI, CN = PN: OCSP-Responder
    Produced At: Dec  6 04:40:30 2021 GMT
    Responses:
    Certificate ID:
      Hash Algorithm: sha1
      Issuer Name Hash: A601DC2C6E913256070444055B0495142597509E
      Issuer Key Hash: 6B3A988BF9F25389DAE0ADB2321E091FE8AA3B74
      Serial Number: 22A52C16B0CA562ECF569882
    Cert Status: good
    This Update: Dec  6 04:40:30 2021 GMT
    Next Update: Dec 13 04:40:30 2021 GMT

    Signature Algorithm: sha256WithRSAEncryption
         22:ca:d5:b3:e7:2c:05:1d:d5:88:ea:94:83:88:b8:fb:a4:1e:
         2e:93:e8:d8:ce:d3:f1:b9:0f:f7:c9:af:92:99:a4:5e:cd:e2:
         35:49:08:dc:ad:0c:1f:63:d4:80:41:0d:ad:13:9a:cf:68:07:
         1c:40:6b:b6:dc:61:59:84:66:27:f9:c2:30:7e:0e:18:d7:8c:
         e8:58:71:f7:dc:dc:99:af:ef:7e:1f:58:3c:43:48:98:80:b7:
         bc:a2:12:54:93:2f:e7:74:59:56:04:59:b1:6f:47:88:04:31:
         d9:e5:b1:34:b9:c2:4c:49:57:10:a5:b2:07:97:31:62:96:dc:
         72:04:15:49:8f:6a:ec:a7:50:8a:15:bb:eb:8e:aa:53:26:36:
         7d:37:cc:42:8b:cb:57:28:ca:c4:d2:44:7b:89:f5:12:88:bc:
         2c:ce:84:7a:f3:e0:09:d1:2d:70:6b:39:14:83:8b:0d:60:65:
         54:90:57:5d:95:fa:f6:f9:67:db:c8:c5:c1:60:16:9c:3d:bf:
         7b:67:37:05:bc:b3:7e:c2:dd:ef:d3:4c:8e:98:ed:97:e3:3e:
         6a:6c:60:d2:f2:8d:b1:ff:4d:a9:44:4b:ea:78:69:d3:70:6e:
         cb:7e:70:1b:e6:9a:1e:e0:02:fa:62:3c:93:95:5b:fa:37:1d:
         33:bf:9e:dc
Certificate:
    Data:
        Version: 3 (0x2)
        Serial Number:
            24:d4:21:4d:24:e1:fd:79:56:c9:de:30
    Signature Algorithm: sha256WithRSAEncryption
        Issuer: C=DE, O=Verein zur Foerderung eines Deutschen Forschungsnetzes e. V., OU=DFN-PKI, CN=DFN-Verein Global Issuing CA
        Validity
            Not Before: May 31 08:52:15 2021 GMT
            Not After : Mar 27 08:52:15 2022 GMT
        Subject: C=DE, ST=Berlin, L=Berlin, O=Verein zur Foerderung eines Deutschen Forschungsnetzes e. V., OU=DFN-PKI, CN=PN: OCSP-Responder
        Subject Public Key Info:
            Public Key Algorithm: rsaEncryption
                Public-Key: (2048 bit)
                Modulus:
                    00:ba:4a:58:3a:8d:47:e7:a3:ca:77:f1:85:8a:31:
                    d4:84:1c:c1:ad:8f:c1:d3:8c:62:bf:7e:ca:e9:37:
                    d4:fb:f2:20:33:f5:cb:4b:c2:93:37:90:c9:db:f9:
                    93:cb:3c:d9:7c:8e:f7:0a:97:48:b2:a7:8d:83:1e:
                    50:db:bc:eb:d6:fc:a8:25:cc:6f:bd:2c:2e:43:fc:
                    94:25:a7:45:c5:95:3d:40:07:13:55:fa:61:a6:4e:
                    98:34:5f:1c:18:ca:03:c6:d8:1e:35:c0:d1:40:71:
                    78:08:a4:1a:a2:f4:10:5e:a9:f6:f3:9b:db:76:e0:
                    45:52:e4:c8:85:74:e2:32:03:6b:66:1a:8c:b7:c5:
                    aa:b1:35:9a:e4:6d:77:7c:e1:c9:06:18:ba:60:ea:
                    6d:34:fe:77:3c:a9:43:9c:18:12:93:5f:73:0c:23:
                    af:2e:e8:ad:54:a9:70:b8:27:fb:08:0c:bb:dd:ca:
                    16:3d:78:5c:8f:8a:41:ef:19:e7:5d:4e:fa:db:a6:
                    02:f2:7d:16:ff:86:f5:b0:4e:52:37:85:52:84:f2:
                    5c:e5:1f:e1:d1:8f:4e:59:ea:05:ce:09:96:70:a6:
                    21:fd:52:ae:ec:c2:22:8f:cb:ca:7c:c6:4f:ab:69:
                    3a:9c:da:bf:9e:df:7f:e9:37:9a:bf:d0:e2:3f:45:
                    15:71
                Exponent: 65537 (0x10001)
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:FALSE
            X509v3 Key Usage: critical
                Digital Signature
            X509v3 Extended Key Usage: 
                OCSP Signing
            OCSP No Check: 

            X509v3 Certificate Policies: 
                Policy: 1.3.6.1.4.1.22177.300.1.1.4
                Policy: 1.3.6.1.4.1.22177.300.1.1.4.8
                Policy: 1.3.6.1.4.1.22177.300.2.1.4.8

            X509v3 Authority Key Identifier: 
                keyid:6B:3A:98:8B:F9:F2:53:89:DA:E0:AD:B2:32:1E:09:1F:E8:AA:3B:74

    Signature Algorithm: sha256WithRSAEncryption
         5c:7a:6c:4d:c3:bb:37:4e:15:2b:15:2e:26:f1:5e:c2:aa:a1:
         1c:05:ab:c5:dd:91:11:11:17:36:a8:b0:9b:82:a8:07:29:87:
         ac:e5:c9:f6:fa:7e:e8:82:af:4e:1d:d9:a7:9a:87:65:1a:38:
         72:bc:58:ba:f1:07:18:47:f1:b3:1e:9b:4c:3a:3a:24:88:1a:
         84:09:26:90:c4:f8:97:ce:24:c8:0c:23:ce:f3:a7:a4:5d:1d:
         2c:3c:aa:46:05:7d:1a:8f:9b:d4:31:38:8d:43:5e:ee:35:22:
         69:f2:41:34:7c:30:45:d5:8e:0d:36:01:05:60:eb:a0:17:8a:
         07:cb:50:06:0c:42:64:bb:f4:c0:45:95:7a:7f:ba:c0:92:a5:
         10:10:12:b9:a6:83:1b:f2:0c:da:fe:21:86:59:87:29:e3:5c:
         92:d6:41:b4:8e:4c:64:1a:fc:09:79:72:c8:c7:e5:a0:46:5c:
         31:12:28:9e:c2:12:a0:bd:1d:d7:be:1c:69:6e:4c:47:a1:d2:
         e9:7b:45:a4:f3:12:28:e6:64:11:fc:57:0d:28:40:92:cb:28:
         19:72:d8:ec:83:06:3d:83:5a:89:d9:af:c1:61:d0:20:4a:9b:
         eb:be:a0:19:b8:b4:a5:82:55:5e:f0:c5:07:f2:5c:52:3b:0f:
         31:de:12:e7
-----BEGIN CERTIFICATE-----
MIIEYDCCA0igAwIBAgIMJNQhTSTh/XlWyd4wMA0GCSqGSIb3DQEBCwUAMIGNMQsw
CQYDVQQGEwJERTFFMEMGA1UECgw8VmVyZWluIHp1ciBGb2VyZGVydW5nIGVpbmVz
IERldXRzY2hlbiBGb3JzY2h1bmdzbmV0emVzIGUuIFYuMRAwDgYDVQQLDAdERk4t
UEtJMSUwIwYDVQQDDBxERk4tVmVyZWluIEdsb2JhbCBJc3N1aW5nIENBMB4XDTIx
MDUzMTA4NTIxNVoXDTIyMDMyNzA4NTIxNVowgaUxCzAJBgNVBAYTAkRFMQ8wDQYD
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ciBGb2VyZGVydW5nIGVpbmVzIERldXRzY2hlbiBGb3JzY2h1bmdzbmV0emVzIGUu
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AQQBga0hgiwBAQQwEAYOKwYBBAGBrSGCLAEBBAgwEAYOKwYBBAGBrSGCLAIBBAgw
HwYDVR0jBBgwFoAUazqYi/nyU4na4K2yMh4JH+iqO3QwDQYJKoZIhvcNAQELBQAD
ggEBAFx6bE3DuzdOFSsVLibxXsKqoRwFq8XdkRERFzaosJuCqAcph6zlyfb6fuiC
r04d2aeah2UaOHK8WLrxBxhH8bMem0w6OiSIGoQJJpDE+JfOJMgMI87zp6RdHSw8
qkYFfRqPm9QxOI1DXu41ImnyQTR8MEXVjg02AQVg66AXigfLUAYMQmS79MBFlXp/
usCSpRAQErmmgxvyDNr+IYZZhynjXJLWQbSOTGQa/Al5csjH5aBGXDESKJ7CEqC9
Hde+HGluTEeh0ul7RaTzEijmZBH8Vw0oQJLLKBly2OyDBj2DWonZr8Fh0CBKm+u+
oBm4tKWCVV7wxQfyXFI7DzHeEuc=
-----END CERTIFICATE-----
======================================
---
Certificate chain
 0 s:/C=DE/ST=Hessen/L=Frankfurt am Main/O=Deutsche Nationalbibliothek/OU=Informationsinfrastruktur/CN=d-nb.info
   i:/C=DE/O=Verein zur Foerderung eines Deutschen Forschungsnetzes e. V./OU=DFN-PKI/CN=DFN-Verein Global Issuing CA
-----BEGIN CERTIFICATE-----
MIIH+jCCBuKgAwIBAgIMIqUsFrDKVi7PVpiCMA0GCSqGSIb3DQEBCwUAMIGNMQsw
CQYDVQQGEwJERTFFMEMGA1UECgw8VmVyZWluIHp1ciBGb2VyZGVydW5nIGVpbmVz
IERldXRzY2hlbiBGb3JzY2h1bmdzbmV0emVzIGUuIFYuMRAwDgYDVQQLDAdERk4t
UEtJMSUwIwYDVQQDDBxERk4tVmVyZWluIEdsb2JhbCBJc3N1aW5nIENBMB4XDTIw
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VQQIDAZIZXNzZW4xGjAYBgNVBAcMEUZyYW5rZnVydCBhbSBNYWluMSQwIgYDVQQK
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aW9uc2luZnJhc3RydWt0dXIxEjAQBgNVBAMMCWQtbmIuaW5mbzCCASIwDQYJKoZI
hvcNAQEBBQADggEPADCCAQoCggEBAMFZ3s4T79aoB5yOoIWIbxRRACDdsxLhtFRC
tCGhzaj7ZZsvSxhZ1Bd3VOKCqxoZesobMvBy7ktrWJFx0nqS4xKdjXiBkKWLKKuU
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OF/fGZXHFv5giTJg2CQIQVbZMzvlF2x958qhCF3WN/cb++NnrPttGGUwLYgucsXd
KIQAnbcZuSfq719Fg1pp3FyA5DVUOKFa0PZSXNelVu2iMAA1S/h4ongfb7MobDFA
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ggRHMFcGA1UdIARQME4wCAYGZ4EMAQICMA0GCysGAQQBga0hgiweMA8GDSsGAQQB
ga0hgiwBAQQwEAYOKwYBBAGBrSGCLAEBBAUwEAYOKwYBBAGBrSGCLAIBBAUwCQYD
VR0TBAIwADAOBgNVHQ8BAf8EBAMCBaAwEwYDVR0lBAwwCgYIKwYBBQUHAwEwHQYD
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2uCtsjIeCR/oqjt0MBQGA1UdEQQNMAuCCWQtbmIuaW5mbzCBjQYDVR0fBIGFMIGC
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SIb3DQEBCwUAA4IBAQBXa8ijRObRfhB3XC+cNLIR1/pyoDYWR6GPpASGKj9NUJcj
kTFKnC+/2OTXY7psP79Y7h1gXthjTthxKOsgbqBbAcM8PuArDq446CW0WeEp9XCq
UxV9ph1f3EJF6/iTTdXLsNo7h+tzNEfnfKhI/HY2GDprmHwJ3iM3INIGaHhG7BwZ
CJDQVEYNY1R1OaxxanAc3x/TS0Q1tD417LNTX6VeRc9K3twK8e//E5RxKZclaSB1
j/Ay/IRx0Fwhxpq7Rdy9y27RySLOfA/i37JiiHJLIctXv7H3zOwZIW+LEtXBhQh0
zQPg1ToN9rs4dt/9Xr3CfHqCRAwbcLlUxJ4gv4ar
-----END CERTIFICATE-----
 1 s:/C=DE/O=Verein zur Foerderung eines Deutschen Forschungsnetzes e. V./OU=DFN-PKI/CN=DFN-Verein Global Issuing CA
   i:/C=DE/O=Verein zur Foerderung eines Deutschen Forschungsnetzes e. V./OU=DFN-PKI/CN=DFN-Verein Certification Authority 2
-----BEGIN CERTIFICATE-----
MIIFrDCCBJSgAwIBAgIHG2O60B4sPTANBgkqhkiG9w0BAQsFADCBlTELMAkGA1UE
BhMCREUxRTBDBgNVBAoTPFZlcmVpbiB6dXIgRm9lcmRlcnVuZyBlaW5lcyBEZXV0
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-----END CERTIFICATE-----
 2 s:/C=DE/O=Verein zur Foerderung eines Deutschen Forschungsnetzes e. V./OU=DFN-PKI/CN=DFN-Verein Certification Authority 2
   i:/C=DE/O=T-Systems Enterprise Services GmbH/OU=T-Systems Trust Center/CN=T-TeleSec GlobalRoot Class 2
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
---
Server certificate
subject=/C=DE/ST=Hessen/L=Frankfurt am Main/O=Deutsche Nationalbibliothek/OU=Informationsinfrastruktur/CN=d-nb.info
issuer=/C=DE/O=Verein zur Foerderung eines Deutschen Forschungsnetzes e. V./OU=DFN-PKI/CN=DFN-Verein Global Issuing CA
---
No client certificate CA names sent
Peer signing digest: SHA256
Server Temp Key: X25519, 253 bits
---
SSL handshake has read 7056 bytes and written 296 bytes
Verification: OK
---
New, TLSv1.2, Cipher is ECDHE-RSA-AES256-GCM-SHA384
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
    Protocol  : TLSv1.2
    Cipher    : ECDHE-RSA-AES256-GCM-SHA384
    Session-ID: A54FE7253D1D70055D6C239587B313A9EEB897770C6381B67855AF67661E745B
    Session-ID-ctx: 
    Master-Key: 248AA9FFFB7A3FD5565A3EBA816D336142E7F6E808EA40CB862B1534EBA77BC2FF8C2516AD2D7C0BB82344F44A3A4233
    PSK identity: None
    PSK identity hint: None
    SRP username: None
    Start Time: 1638769642
    Timeout   : 7200 (sec)
    Verify return code: 0 (ok)
    Extended master secret: yes
---
DONE