dujco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:06:fc:e4:64:63:e0:d9:ba:a0:54:da:80:f8:32:8b:56:d7 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:fc:e4:64:63:e0:d9:ba:a0:54:da:80:f8:32:8b:56:d7
Serial Number (int): 263714703331582051775822819177748681676503
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: bc:4c:00:d4:2a:06:4a:b4:ed:47:19:32:f2:76:75:c9:9b:0b:2f:ab
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b8:1a:41:33:88:98:f6:d1:06:e7:b1:44:34:97:cc:94:df:d6:62:25
Fingerprint (sha256): 55:26:88:7e:03:ab:fa:40:e3:de:2d:00:00:2b:a1:62:74:6b:5f:a7:b4:f2:09:7b:e6:78:49:0e:be:67:b6:1b

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 263714703331582051775822819177748681676503
 . . . . . . . . [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 2019-12-25 20:24:45 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-24 20:24:45 +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 702445041344225629774384760678153186964220376000907543462574929084179979376835068624975570026034673523299128995822533888485429455323592351846430927234226508446064913331941794114994808883861008918367683827077624747576393429338400872712262499281399601636081707307475856289146821303660931747123173614714657814929299706136686155466084732979008798520031944574645678431113373720816315395942723959256757305140426444908364868442495610130051752605492457958690705221897172223618734010204807189998850919516937075316947202823942362650057605245916139378781669192546683355386432049843827279590362993189713122211345514007858663419370224889890355174749176303848474766326436762451383947431555644210594537929195448044582308736376111329808055166529217854480166479588078358513003062715936873947690843603805821846544054165592645806174956376234389734601201004504386145776456083748244224614397682073689489641707230670566254514159672017611077756884552430884869054033790521099743403148142574292074561530473899781894347617870610914532151737879339112831531205438819100588020620240598164659598309185357032390978144727256673817611418584452818533419798623382723134883987511847348561863351053075288771676755218965809487169276500420339738602861541858375752350609201
 . . . . . . . . . . . . . . . . . . . . [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)
							bc4c00d42a064ab4ed471932f27675c99b0b2fab
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f3ef29f7200000403004730450221009b05f6629d17c8f7690dbebf7bf70c76865394b587a5b75377a15998bb55bf5d02201f2d8231463322daeb4b578e6bdc8b482b7dcc368c7d5c74988dd616416cb5df00770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f3ef29f990000040300483046022100e4ade59670c55b9a7937cd6e5a8a06ee4918d93aa9382d8bbd2798c968053a60022100a7b5dfd8c5c1e506d3eac0d246322e85cbb9cb0bb8852fa1da187f2e57f6f42f
 . . . . [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)
		006a08445c1edbb5ca169b3d798d437ca58a4d9db947cbc44c2072eee727682197e00b46945ad4cdbcbcc9ac5cea80fb84e5a580d0a2645e3cd5a1a348950cb29e72d27610e557b45eb9b152e647a95dd823676e7b8ba159d5e92e53e50677a7376324f737810b2208c893e7d5a6378643662f2efc59cbffb3e00033071fa30ff0080a0ae9732e65d9ab0390cb82ff10ce23a92f677093cf8bd68dcdcbef61f3ef6ad7f9c495af83664d8b5186de6e8f4ba6e35d1370db9ed2ce450f56ba096fb4f8d3f75e270ba1969a8411b53d16fe1c2dae36af5a56fc5eefacc35e7ce9f7eb60e4122b773773b6ab35c42b32ce3769ca8cdba927211d6301229b35c1e00d36