www.dujco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:8e:d7:65:76:96:c0:12:65:2d:9d:be:cf:ce:fa:01:54:d1 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): 03:8e:d7:65:76:96:c0:12:65:2d:9d:be:cf:ce:fa:01:54:d1Serial Number (int): 309943264744398471650323389846474635433169
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 66:65:ca:e0:88:27:33:e2:51:1d:64:ed:65:c1:6c:8b:e7:07:48:62
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 64:86:5c:36:2b:b0:36:3d:d0:97:3d:fd:12:6d:3a:be:90:ba:d4:5a
Fingerprint (sha256): 77:c7:68:b3:c7:f2:74:a6:a9:7c:46:ab:1a:47:63:65:e9:dc:4f:0b:27:58:ee:59:86:9f:6d:cd:03:94:b3:70
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----- MIIGUjCCBTqgAwIBAgISA47XZXaWwBJlLZ2+z876AVTRMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMzExNDAyMTFaFw0y MDAzMzAxNDAyMTFaMBgxFjAUBgNVBAMTDXd3dy5kdWpjby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQC75hFeN+CK68LPMIZLnw2jipmuooRZf447 zCOHKXluZd3JwroFDf9OJFQ8rjCzfSsxlvQtqxsWc9tdgMc8Z6JO34jUr+N8eWkV bsCr9JxpLiYAlxgsfCOaKr/dH5h5lZJelqbw4U2ARGJjLeHRO4ABHJ0WnnaD1vKM 1qnFM8ZXIlCLXyFY9vg8Afvi6XIZ0lYqhmc/Dy7R82ik8OjseO/1f4KXGtBXyjgV aNMuV2VJrQheOYkGvgo/tyGQpUe19tWyyysydrp+8r6Uk5tfZlcbr1T590WbU1w/ ULg+vHAGhBHwBPixN4npkzUzmem8g4XrdL9/QQPRftqOwLqH0+BcQX8HuXs06uDk Lj1qLai13g472Naza1upVHsx811SaBkDDb1CLM8zSP8cKLqQdfSJtYBS0jkDt/e2 0EzfWZwFme32U0pR81xYFxOGPNkxrdxTltqyIIUKq2BButhsDY7dFoRlxbAvu7WV Mel3/xkBufbaUC0doPci7y7a9n1D/0we0mVVUTiv5HMilPKZDwgnAFAscR65Mn2I +vZ8ftJv9nwc684qDXU8vyVDAeEEsNkVpksRHy/VvHe2oMhaFks2iJa+1KTYE9OE F5e+TL0+QJ0toqCTPjnIy1ma0sgbQFnYZtO55ZH9QOIZ35p3MEw3zbYAwvrR8L84 z/2pqZpyWwIDAQABo4ICYjCCAl4wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRmZcrg iCcz4lEdZO1lwWyL5wdIYjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5kdWpjby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHy APAAdwBvU3asMfAxGdiZAKRRFf93FRwR2QLBACkGjbIImjfZEwAAAW9ceobZAAAE AwBIMEYCIQCrnbbmWiXWe9COijo/Nf0dP4xSaqy6fnhn8x0g7XbpCAIhAJFYlQLK eKCyFJZhjSr6T1mPd5MZLl5v0bBTRIdy4GLWAHUAB7dcG+V9aP/xsMYdIxXHuuZX fFeUt2ruvGE6GmnTohwAAAFvXHqG2QAABAMARjBEAiBS9BHFUEiElAk3eQ4GDVXM Va/5KTJ5PqX1R0+wGXGhXwIgGJrebMMgMfU9l/cd9tQHoMRg1AGsnyxn+6ZTNX7G 1yIwDQYJKoZIhvcNAQELBQADggEBADnH43NJ6fuzMMUQgvIF7ezx6wnT39AgCWlU sn0Ws1nwaaIlWjIhOpFBQbQfxJn08FISLvecmIIu7axn/648mwwj8sWdt+Z74s1f cBximFSn7gTZOPFG1SDmetVMqGdYikyop45rqnHpo8/EoYH7Wf24VhRNpfUWW7au XzNjCFzez6aVUlwwIJ5PZvalYIN2yeBAFn7bAxDe+oZbRvFjEsatfhSDm7f8T11b 72OCOZy7xbb9wmQ7zmaGb+z8L7jPZXcHDpbBNkJjaFFn4038RC39sWlqLSXrM4bk /SevwRLmZmdfAqvah2fs0qKqrRZVnZ1PTXSqtNyd9yZnA2y4JRc= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAu+YRXjfgiuvCzzCGS58N o4qZrqKEWX+OO8wjhyl5bmXdycK6BQ3/TiRUPK4ws30rMZb0LasbFnPbXYDHPGei Tt+I1K/jfHlpFW7Aq/ScaS4mAJcYLHwjmiq/3R+YeZWSXpam8OFNgERiYy3h0TuA ARydFp52g9byjNapxTPGVyJQi18hWPb4PAH74ulyGdJWKoZnPw8u0fNopPDo7Hjv 9X+ClxrQV8o4FWjTLldlSa0IXjmJBr4KP7chkKVHtfbVsssrMna6fvK+lJObX2ZX G69U+fdFm1NcP1C4PrxwBoQR8AT4sTeJ6ZM1M5npvIOF63S/f0ED0X7ajsC6h9Pg XEF/B7l7NOrg5C49ai2otd4OO9jWs2tbqVR7MfNdUmgZAw29QizPM0j/HCi6kHX0 ibWAUtI5A7f3ttBM31mcBZnt9lNKUfNcWBcThjzZMa3cU5basiCFCqtgQbrYbA2O 3RaEZcWwL7u1lTHpd/8ZAbn22lAtHaD3Iu8u2vZ9Q/9MHtJlVVE4r+RzIpTymQ8I JwBQLHEeuTJ9iPr2fH7Sb/Z8HOvOKg11PL8lQwHhBLDZFaZLER8v1bx3tqDIWhZL NoiWvtSk2BPThBeXvky9PkCdLaKgkz45yMtZmtLIG0BZ2GbTueWR/UDiGd+adzBM N822AML60fC/OM/9qamaclsCAwEAAQ== -----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 309943264744398471650323389846474635433169 . . . . . . . . [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 2019-12-31 14:02:11 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-30 14:02:11 +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 766559827105061326322241037464315568773749116216189800546893822590426334706008161998858170224151980771980274216087917524943468479068458610905355934917947828353753305440536071577616529179048254287181256382466606770915174543167288702673487170854029028083514934836103235556843082969386855382950800498837077814379455514594084026652216403321390082362831531947792671289224911231407202401884318366160640385473836548638428469893416696235726825763095006610935175157620896113611033916790876546555794866262030508407313542803468047892556175327142208595113618293258475480575251607595619922193675030837326276567899949868661046964846016784532559582884386935223608555198352366319966411391558608068835181052129199556067661156715379786755388075647557212307559246381526686546809147215349168470230824122983811807708659283775659260211200865691856260809353685162606059695171471892833568446676594149748561518748235312584490473549135924708748539209618814779360417151199774403256194637678999255502799362256102038832241363313327419449596623205430013782438597256373689741223694950552343413684156038216557669470636016107319455418094688953159997593307124750511018888168695078429170393634324714186932883651446551352259577029851942246601836311473196215288884523611 . . . . . . . . . . . . . . . . . . . . [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) 6665cae0882733e2511d64ed65c16c8be7074862 . . . . . . . . . . . . . . . . [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) 00f00077006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016f5c7a86d90000040300483046022100ab9db6e65a25d67bd08e8a3a3f35fd1d3f8c526aacba7e7867f31d20ed76e90802210091589502ca78a0b21496618d2afa4f598f7793192e5e6fd1b053448772e062d600750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f5c7a86d90000040300463044022052f411c5504884940937790e060d55cc55aff92932793ea5f5474fb01971a15f0220189ade6cc32031f53d97f71df6d407a0c460d401ac9f2c67fba653357ec6d722 . . . . [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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