www.duffett.co.nz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:cc:89:88:52:f0:99:55:42:7c:33:54:eb:ce:9e:4e:bc:64 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.duffett.co.nz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:cc:89:88:52:f0:99:55:42:7c:33:54:eb:ce:9e:4e:bc:64
Serial Number (int): 330937272717167281479570451938560976010340
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6f:67:21:06:b5:57:03:10:39:14:9e:0c:7b:f4:41:7e:27:c4:45:8b
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b7:9d:93:50:9a:7a:2b:e6:61:08:fe:9a:c5:de:a1:41:e2:d6:07:43
Fingerprint (sha256): fb:38:27:3a:69:10:77:51:15:24:85:2a:11:82:80:ff:92:c6:c3:6e:40:bf:7f:15:f1:08:dd:22:3a:03:44:9b

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 www.duffett.co.nz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.duffett.co.nz

Public Key Algorithm

RSA

Key Size

2048

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.duffett.co.nz

Other certificates including the domain name duffett.co.nz

(limited to 100 certificates)
remote.duffett.co.nz
www.duffett.co.nz
remote.duffett.co.nz
www.duffett.co.nz
duffett.co.nz
duffett.co.nz
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www.duffett.co.nz
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www.duffett.co.nz
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duffett.co.nz
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www.duffett.co.nz
www.duffett.co.nz
duffett.co.nz
duffett.co.nz
remote.duffett.co.nz
www.duffett.co.nz
www.duffett.co.nz
duffett.co.nz
remote.duffett.co.nz
www.duffett.co.nz
www.duffett.co.nz
www.duffett.co.nz
duffett.co.nz
duffett.co.nz
duffett.co.nz
www.duffett.co.nz
duffett.co.nz
www.duffett.co.nz
duffett.co.nz
remote.duffett.co.nz
www.duffett.co.nz
www.duffett.co.nz
remote.duffett.co.nz
remote.duffett.co.nz
duffett.co.nz
www.duffett.co.nz
duffett.co.nz
www.duffett.co.nz

Certificate

The complete raw certificate details for www.duffett.co.nz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAivo14KFV4Q+A7GtiuRkB
NT85r2Gg4F26GJlCUkYmL4nYc0DVsPgXlIlCRRqhiCJHoxQY+jymaqXLO26RoJHK
EEfZazb8sU4loAN06f86qyrteON62Z+l//OUI8yv4TOSDjvTlcZSMexlM2rPyCir
eqNU2EsNj+rfRMLwVBl8zeu1aFq8fMegnW450PYZ+fQYzvbGYrmzW7WgavA6lCNj
pUfZSINuTzkwEeHrq8H0gkc5OnhlziPEN5PGMuz2nSACGlkBHlWVz8/JS5jG3Kb2
OWwnKkMbQV6GahX+52BO0SmCwbNNEwPtR2nVmFKewpo9ySruBW+11xx1QWplbFT9
dwIDAQAB
-----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 330937272717167281479570451938560976010340
 . . . . . . . . [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 2019-09-17 12:47:42 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-16 12:47:42 +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.duffett.co.nz'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 17544269461129066202684677499533237392388766633679919987504631744524443947429540767379842034727640346038008135596477075078221105135185596613894728322806042617286166711247407685660947445980489961061413057292231911167032860031669359019997366416347071265599506089310891120807076053204272044502343502476999606251847763890454679303457277775683210146976174936747117561481631430152196896235458187458631646955999025172989880103318981200048464148289462231688204733124924298142259659234930117386890511481017168989236000480926712017383316354788341536717589049987746658288868556710086166371603343495147088819967518376373052046711
 . . . . . . . . . . . . . . . . . . . . [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)
							6f672106b557031039149e0c7bf4417e27c4458b
 . . . . . . . . . . . . . . . . [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 (21 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.duffett.co.nz'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016d3f7a9c310000040300463044022024d3be0792160b18754dad096ead738f29f7d1efa109c3d198d8d0d91fa6454702207be1714334c939acc59b4275e8abcc7115b4fa2d84157f9fad1eb45b60feba4d007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d3f7a9c1f000004030047304502202e3f8490d2e8c7bf162d9056567988f13dd6d570455620d207b794dd1055e0ad022100942ef4ab1457777d1ee1eaf4d7a53b0eb41c9de88f87dada196bd5d6a246bbd7
 . . . . [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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