dujco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:06:0e:de:0c:31:6e:4c:c5:6f:00:c4:b6:8e:b6:68:9f:0e 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): 03:06:0e:de:0c:31:6e:4c:c5:6f:00:c4:b6:8e:b6:68:9f:0e
Serial Number (int): 263398314125955185643421610607366644473614
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 4d:b9:25:98:8f:f6:09:e2:6e:a7:2f:c0:08:03:62:4a:3c:6c:03:86
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 74:96:1b:0c:06:f4:fe:6e:e8:26:06:e2:f9:9b:f6:58:76:9c:fd:7e
Fingerprint (sha256): e8:60:9c:50:5c:f6:04:02:f6:18:1e:17:e0:e0:2d:2d:e3:d5:e0:96:0a:08:b6:95:bb:77:0a:c6:54:a0:60:2c

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 263398314125955185643421610607366644473614
 . . . . . . . . [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 2019-10-13 10:32:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 10:32:29 +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 649615173716249532280968649038483320243863723287742258504472857894656374943172814018481546826642252531089888307159032173410908933680494521925676607632443287413941089604809449956664933277647309870822160709047619315660893723639444485787884497797445970731105576174598997665132577613040835917272089535273512691413580068464097557110248708759782487951672304551962301033323847775344224718472352386654112229237198623226488595692377212814938500782621817666564782477433000428016298930725406500825616886727025332977856709603156783390281663607087983049174938381530810646822375549817207023253878472504696787118060344897235602173487369261541734976799660138010952173834959746883560339444032645785724491970174876371370303271920644964559568658493138940508838204338542450168910058044007673138252436160887103974445685382361567427748850984991757662635058496745138891245143732623672134148017520008000936652077681359444337703829571903352367150774286167945782399118516567133905575424409822880990558267386638628020443765354225384396922580629810827976072834842909367975306941930465986937494863840590581439197198946700680016382692041416515041453967589821799551068659488296761067818146247065383261078576270684909746021502656437776973633645180692645753632720639
 . . . . . . . . . . . . . . . . . . . . [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)
							4db925988ff609e26ea72fc00803624a3c6c0386
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc4e427df0000040300473045022100a606ba8f539b351d65c2585adfceff136c6ce168ff42b25a543069a82540e0c2022034c7b8c400f257d41f7fbcdf298047216b80b3928fa9dcaced24b7898dc5939f007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dc4e427d300000403004730450221008b244aa0556f9afc05587ea0f6368bf35df9e8b59dab17cc2944983e46e0ace602206c0c0323d37fdb594583fe254fb1f4f87f7b59a34dddf7b84ee9b3dcfb03b7e2
 . . . . [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)
		007ca53799e8c185cbc8a801307a59eb549865914500892a3aa062f5c66f598e1208a027f665282406b04a049fbe32d3410ad962f63c0fe3aaeda641474f92fd35f322770cf2fc43a1b1456989eb1166309e80c9f1d2d483c28120f5f38f5d887b3deaa729a86ab26fadaf4039abacc2e3957636d2a717cc70f59fb04ad104dc9cf6892e41ef83ad1ee683220581690e33ddeb945b7267e51398f9fd59b5deb5e441443bcc3956a72c8ab0d19ed9b5da0cef94278188c4098364f3bf0b989f327dcf466c184fda9268cb89460aee13e66542607f7d035224dc56df4aafd34d00be04203effbfaf6edea0e1c3d0bd2cd64fa200abc746bb0623f8edbd5ff4cc8cb8