www.grayduckco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:d4:91:96:29:58:12:e4:0b:c1:a4:07:2e:f5:3f:37:49:54 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.grayduckco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:d4:91:96:29:58:12:e4:0b:c1:a4:07:2e:f5:3f:37:49:54
Serial Number (int): 420782523256754252338201824205783552182612
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 40:dc:7c:3e:5f:f6:fe:18:42:41:81:a4:5d:65:8a:62:c0:f7:bf:0c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c6:b6:06:0d:37:8f:af:22:cb:8e:c6:fc:f2:f4:55:1c:9c:33:6c:36
Fingerprint (sha256): 44:a9:0d:58:8f:25:84:96:43:f3:e3:44:a5:69:8d:7c:77:a2:8b:cf:78:30:dd:76:87:d8:2d:d3:96:8b:87:c0

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.grayduckco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.grayduckco.com

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.grayduckco.com

Other certificates including the domain name grayduckco.com

(limited to 100 certificates)
grayduckco.com
support.dexteroustechnology.com
grayduckco.com
servicedesk.mantis.com
www.grayduckco.com
support.o-lens.co.in
support.lightbend.com
support.enlightenedbusiness.com.au
help.terryoutreach.com
support.deepstudios.org
support.grayduckco.com
support.patchbay.net
bdtsupport.oceanbridge.jp
helpdesk.fastcashmd.com
support.deepstudios.org
support.nationalcontractsolutions.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA253VsRUg8Bu6+qkFkejR
2Iok9PxyVeZVxo3x8d50krXhI4OWopYEsxwEwCAlhEyNAoJjd3cuNqxkE6YwYmLV
Pp28Guq5kAnBiQ2RaDi5ZqvdbGQnxSj6VNVc68bPKVxMfWWRfjS0BtIYYZsngosX
DPMXr3XRs66GEl40mPYxbWJZhzQnqvsW3D90sLwLNLGRwVslfS02W5RFVtFoTt9q
laJGHBJdujaygk324LkgSsa/alrLhtilyQ/0x+y+09T9TOus36UJJsVaaB4wmXyp
bKuSNZS7KBmYFZvU/JP9PZnoyr7sqIBAN44MEXyRHyiFlylAzgylTVPcm9HTvS9J
RQIDAQAB
-----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 420782523256754252338201824205783552182612
 . . . . . . . . [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 2018-04-25 01:07:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-07-24 01:07:20 +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.grayduckco.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 27724019995373320154494767971046805835487764059548717234916377634361745985496908589760739167875419230590219114137428217035229819075011722605362465651090494232328328081225970473841753207924168600555793414609163435517034177579789209360146197602723100942575497515658148795415177144614612611294707052284625079164977153345812488580583740501027937360352530272038858102095021244977577134555610389943593006786442895316659203637961754377206689911300517049889300006722023871875603957266087843339165325918984984397779329219976969252420328771199026669317795040019318374305612188081922973372903185507699927679426828411297030162757
 . . . . . . . . . . . . . . . . . . . . [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)
							40dc7c3e5ff6fe18424181a45d658a62c0f7bf0c
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.grayduckco.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . . . . . . . . . . . . . [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)
							00f00075005581d4c2169036014aea0b9b573c53f0c0e43878702508172fa3aa1d0713d30c00000162fa8e1d3800000403004630440220244a81f1c3ab33bed0a24dfbb9b10392bf916b4fab45b245b8c2c0bcf841b25902203b15a3dc63a69341d07e49fa2d35393d069db7bef099b920903740705abbb283007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000162fa8e1d220000040300483046022100fa81665141b209cfe72f04ba78d9e1e60ea0b23633ccb93a812f51ef42d7bfdf022100b11e8f8946d15988489fbbf123585e9775240c2235097055eac5e849c7a1d240
 . . . . [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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