www.dujco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:77:2a:60:ca:71:e1:ed:76:b3:e5:fc:fc:db:37:d3:d9:7a was issued on by Let's Encrypt.
This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. If we have found any compliance issues with this certificate they will be shown below. I hope this certificate review is providing you the detailed information in a simple form you where looking for.
We have idenified some issues with this certificate:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=www.dujco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:77:2a:60:ca:71:e1:ed:76:b3:e5:fc:fc:db:37:d3:d9:7aSerial Number (int): 301886789601263246407063707275709916633466
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: c2:d4:bb:cc:af:2a:06:38:d1:82:f0:8d:92:44:0e:3e:9b:22:03:2a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 39:7e:05:c5:d1:9d:be:d1:a7:8c:7e:fc:42:02:3a:cb:50:83:64:b7
Fingerprint (sha256): 10:d8:69:c0:d2:70:9b:c0:72:54:0a:aa:7d:2f:84:2d:b4:48:cb:05:28:4d:2c:db:42:ad:35:87:be:04:9e:cc
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.dujco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.dujco.com
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
www.dujco.com
Other certificates including the domain name dujco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.dujco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUjCCBTqgAwIBAgISA3cqYMpx4e12s+X8/Ns309l6MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAzMDEwNTQ5NTRaFw0y MDA1MzAwNTQ5NTRaMBgxFjAUBgNVBAMTDXd3dy5kdWpjby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQCuq8YMoef+uE2WChYHu1mt8swFRG/Avlm1 ZXUbB8rbwJ5dhmlQM1rUwBnXBU1CIS5hoTIqUWAO9AnCK2qRIsf44UhPVqh5sxRG LY/VEYHDl1bXy5L+CNi8m5Cuc34aydyYcD95XQMuAb0PMRZGRPJLht9Ud6zAEh4t lu8/7QxRnGl26gBgSIfZvD1ZUvT/havwk+EfpEpIOsJxIAyOQd0Wj0f1JL3Omn7E ctLwvGO49e37Mgqotod/QKY6ZarWkiiOiEgDiP+bvV5/K52nm4WZFMYnjXKGcGbq buA1gwHI7L+hHg0+bhJ6Dr9sZ68yfhy0d6KjZKFVcXckbeRGF6rJqFtID1jpSlXL zuTid3l7+dK4QogwGAjQ9/EFti0m8siOFD/FbL3+9leeRmMCawO2V+eSb3JP7p8N ezat0mmTCt1iMdayfIHRvVIiPwUXoEGCLdUYzV50vwnBicBmVHBAXE4KiFOJ8XNJ D5Eq0hKBxCXHTUCYV9ACC7FfvfbK5g8xNoAAO/Hk81aFVfrTV+p9YfNGZ6oUdP09 WQ5rib4ZA9BQs9N/YkAgTdoIA7F3IBQTZzpZp4rj0ekY07lN/NJ1pG5NcuDCkwJQ 2HPif8qgozcX0YCCRZosGQxouIBbMHSDJTDWtciXrigCB4vWGSQZmGN6mhDFrulZ U6/jhXSyDQIDAQABo4ICYjCCAl4wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTC1LvM ryoGONGC8I2SRA4+myIDKjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5kdWpjby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHy APAAdwDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAAAXCU28AfAAAE AwBIMEYCIQDyxzou79rNM6PEKjEkk6CCz6bt2MKhNWGICKcnGEpcTwIhAMfGM2w1 EN5CEeTBuxG5vq5h4MfYEXtdayRo1thZtupEAHUAsh4FzIuizYogTodm+Su5iiUg Z2va+nDnsklTLe+LkF4AAAFwlNvAEwAABAMARjBEAiBwYyLZ4JEpLwn78BRc9SpO 1Hu5tHf811Kv/G6pXr35qgIgVAndGQN/yx+PjbvnOv+vG2YGL2bG+nWW+rGzConS aLEwDQYJKoZIhvcNAQELBQADggEBAIHMVaOmmtuP4wI7gPs1veMWa777U1g56O+S Tl8qfqYqa9Ktb99PkEkuBPFnpTM/RIEDUjoVKi7caBbwDt6VOad9MvqXkzi1jtsH ci8dHeWuzdV6kH3BfYMJfCNgODMkgIa8DEUUs2lxjpAXNeuxGs9uXl/CnKkJONDc /+3QrII/uQjI1QXXjMXe5J238dAseDmC4MMDSF7unm5Ecc3ijF1EqtbPUKFPjRfc zaFeh9FuDJjq4bGLEuZc1jiT/viVJlBFaQmQDvD6Dfz4FCDS6UrsICjUeA6le3yG MMpvI2BQdqNj0xLGCvryXG41ybmHN4e1fUB8ZypBaht1fDWBSJQ= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEArqvGDKHn/rhNlgoWB7tZ rfLMBURvwL5ZtWV1GwfK28CeXYZpUDNa1MAZ1wVNQiEuYaEyKlFgDvQJwitqkSLH +OFIT1aoebMURi2P1RGBw5dW18uS/gjYvJuQrnN+GsncmHA/eV0DLgG9DzEWRkTy S4bfVHeswBIeLZbvP+0MUZxpduoAYEiH2bw9WVL0/4Wr8JPhH6RKSDrCcSAMjkHd Fo9H9SS9zpp+xHLS8LxjuPXt+zIKqLaHf0CmOmWq1pIojohIA4j/m71efyudp5uF mRTGJ41yhnBm6m7gNYMByOy/oR4NPm4Seg6/bGevMn4ctHeio2ShVXF3JG3kRheq yahbSA9Y6UpVy87k4nd5e/nSuEKIMBgI0PfxBbYtJvLIjhQ/xWy9/vZXnkZjAmsD tlfnkm9yT+6fDXs2rdJpkwrdYjHWsnyB0b1SIj8FF6BBgi3VGM1edL8JwYnAZlRw QFxOCohTifFzSQ+RKtISgcQlx01AmFfQAguxX732yuYPMTaAADvx5PNWhVX601fq fWHzRmeqFHT9PVkOa4m+GQPQULPTf2JAIE3aCAOxdyAUE2c6WaeK49HpGNO5TfzS daRuTXLgwpMCUNhz4n/KoKM3F9GAgkWaLBkMaLiAWzB0gyUw1rXIl64oAgeL1hkk GZhjepoQxa7pWVOv44V0sg0CAwEAAQ== -----END PUBLIC KEY-----
ASN.1 decoded
[c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2 . . . . . . . . [c:0|t:2|false] INTEGER 301886789601263246407063707275709916633466 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.6 (countryName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'US' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Let's Encrypt Authority X3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-01 05:49:54 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-30 05:49:54 +0000 UTC . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.dujco.com' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.1 (rsaEncryption) . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 712595471240640719585750001041601745060929162601297520248886855933435281569421456895660497132594225307635679165365167014022785143174717652927010030984206573645316020889614068122403028786982317548221323232057942006792580389176011756396297078155469594513036282532540033640112398051158329267593179454304564003821975734117368445803705445981960904194953849077672396130578252175343070323894967953898200391679442723097999169824901711092653611798364169906345721022376809569377322420149951002985008063774693795845668910934886601197590701130554011068613170136917948235168181352905627866544222741241550780217930226312084945277178977831428852965715936238599453019698654150350710525860312850328455179282913330412597839363687118077573883779838442015379745557264645764011889786279311620117037838320868001301576274521532343559509297186254715438414837942208164423611529783669746395090152318549772028749166423756656701749290984810072329866435787883263791261725473341725466376430224087695437027036446352660468145028664039004343405927018568495265241385172707589463140246189483038060602566760438769110886343386232672067462556546101669607994214490275564451843237685611615107312453112033635738646035193951516628651223680769380581666260067130442452716270093 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 65537 . . . . . . . . [c:2|t:3|true] ORAddress . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15 (keyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (4 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (3 bits) 05a0 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.37 (extKeyUsage) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.1 (serverAuth) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2 (clientAuth) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.14 (subjectKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes) c2d4bbccaf2a0638d182f08d92440e3e9b22032a . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName a84a6a63047dddbae6d139b7a64565eff3a8eca1 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (99 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.1 (ocsp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://ocsp.int-x3.letsencrypt.org' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://cert.int-x3.letsencrypt.org/' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17 (subjectAltName) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (17 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.dujco.com' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.23.140.1.2.1 (Domain Validation Certificates Policy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.44947.1.1.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org' . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000017094dbc01f0000040300483046022100f2c73a2eefdacd33a3c42a312493a082cfa6edd8c2a135618808a727184a5c4f022100c7c6336c3510de4211e4c1bb11b9beae61e0c7d8117b5d6b2468d6d859b6ea44007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000017094dbc01300000403004630440220706322d9e091292f09fbf0145cf52a4ed47bb9b477fcd752affc6ea95ebdf9aa02205409dd19037fcb1f8f8dbbe73affaf1b66062f66c6fa7596fab1b30a89d268b1 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11 (sha256WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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