dujco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:f8:e2:af:ed:0d:1c:8e:96:43:1e:57:d9:fd:99:b4:eb:8c 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=dujco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f8:e2:af:ed:0d:1c:8e:96:43:1e:57:d9:fd:99:b4:eb:8c
Serial Number (int): 346028203778640993596365654925851864918924
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 03:ba:fe:7e:43:73:91:af:80:e5:cd:bf:66:8c:7a:dc:8d:1c:90:66
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 61:f0:2a:0a:15:ac:f6:80:0d:1d:46:71:53:53:05:af:8b:76:38:a2
Fingerprint (sha256): b3:8c:92:35:f9:43:c8:18:8f:ed:11:34:f0:63:c7:e7:62:ef:0a:43:05:19:89:35:9a:1e:a9:35:ed:62:c0:9a

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate dujco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 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

dujco.com

Other certificates including the domain name dujco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for dujco.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 346028203778640993596365654925851864918924
 . . . . . . . . [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 2020-02-24 21:19:28 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-24 21:19:28 +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 '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 714394022095594073361393508100391756044647588937875699785986211802345403537141010679808413840531215568896984891380533350768171252011411072079602056703949995834445223070657602290799343484299430862784995969258840126925259090081888262942191359726856520045719975072578127596469835257288552122929934327151079089784705096451014667481929811007947296363869586066290783724981583271048029145217904174501646577630335196863311132672299374497948865221044049641210879995752799629007483967764852557309560610159397527551677868439792028633876846576220001441791562095984761221965987665537773909293796829195570377227901575466409513589404545530589362753865764929342614851830159873127393972373315634254330217917966876692475366864269960947522893721966752275918349679781358416523959382359898430558580043734740019086809784387142867847525405331556015281920352567294393403930894366020864473206395446350839486569243126198602129449723724233391797261774725366627811462571316688020151636758921851237420387500854817152348286881888243912396385655719761526052852335041755802116998872831492994352983721293208101414713424127114441441865430423029177246918227381968835332716559951236407961727477737338754433522301774251123696511742675161280074942918908189470646543050283
 . . . . . . . . . . . . . . . . . . . . [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)
							03bafe7e437391af80e5cdbf668c7adc8d1c9066
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb273000001707948a48200000403004630440220293886536d5df8db9708a11f069363cd6f4203b4204dcda55772ca514a057d0f02201d0243307456b6bdd2dde6c85ce6732ae465d16dd6649080cce11513e8cc62b9007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001707948a4780000040300463044022023935cfd01d43d3de8a0ab31fcb32da3276aa7e46a06458a0a122c54105a521402204ffe89a4695e0211b0c3987422c1a18f99d4e12e1b7bd09f7435f4955f0e2034
 . . . . [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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