classworks.com

Issued by R3

About this certificate

This digital certificate with serial number 03:e2:db:1a:0c:fb:83:52:f6:c0:6e:61:16:a7:95:21:50:2e 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=classworks.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e2:db:1a:0c:fb:83:52:f6:c0:6e:61:16:a7:95:21:50:2e
Serial Number (int): 338531908913523878032634717064636263387182
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c7:6a:a6:1e:57:08:d6:5a:5a:5a:67:01:31:06:8d:7b:55:31:ef:c7
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 88:30:61:38:ca:4f:0d:56:59:2d:a0:7b:30:57:75:5d:23:2e:19:ba
Fingerprint (sha256): ac:bc:d4:b4:c6:98:4e:8e:07:10:b8:4d:ec:72:5e:15:7d:f6:2f:dc:6b:8d:a0:a5:01:ef:09:1a:ae:d5:26:9e

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate classworks.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for classworks.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

classworks.com

Other certificates including the domain name classworks.com

(limited to 100 certificates)
*.classworks.com
status.skynetexpress.com
status.skynetexpress.com
smartguide.classworks.com
*.classworks.com
*.classworks.com
smartguide.classworks.com
manager.classworks.com
classworks.com
xostatus.crownpeak.com
content.classworks.com
content.classworks.com
smartguide.classworks.com
xostatus.crownpeak.com
*.classworks.com
status.skynetexpress.com
*.classworks.com
manager2.classworks.com
smartguide.classworks.com
smartguide.classworks.com
*.classworks.com
*.classworks.com
xostatus.crownpeak.com
smartguide.classworks.com
*.classworks.com
classworks.com
*.classworks.com
classworks.com
smartguide.classworks.com
*.classworks.com
classworks.com
xostatus.crownpeak.com
smartguide.classworks.com
status.classworks.com
classworks.com
manager.classworks.com
*.classworks.com
smartguide.classworks.com
*.classworks.com
*.classworks.com
content.classworks.com
*.classworks.com
status.skynetexpress.com
classworks.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwaBv0dlYyVbC5Cx5gH+C
O+vxlE5w/9G+co3PLoKIzU0OmGqNsnd7JvV67pX/rN1AuOydmAWiqVjpsuBIs5Eh
viawkCWQhY97CO+HtV5tD19a04gm02LyB3GpaOUO8YkmQN6Ryszk6jLrX1a+QPys
xAMGEAF+stc70/VpFYDjAYiX9K8+9Vu2dntqTY0+ODu+yWjhWfn8cm2TcGiCwg4j
wI38cMYuUyq6wxpMDswG6yUQLpJhubvM6SmhtEqm21mLKsUyl3jP16WLP6xTwaDM
ZZe85Klk6NJlw0tt7lY8Y4POYwyPV6+O00A4BypcUnuauxSMhvqtQ9+Cgh/09ayp
1wIDAQAB
-----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 338531908913523878032634717064636263387182
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-01 22:13:59 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-01 22:13:58 +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 'classworks.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 24443107191085805448696381702537505506620736886893016195846665431738093905711591930111493094719821754081105255829985796590379720879568304736370165548287166206044548902865639012094426787110805081659030135755414787815597227113478686508798932737442682529820815322494922108880185707017137742581866095384335128175931240957962602554147380906978359737706759669481701331484759296142765780177077994862634361076899390009243704925559324550102062432831956097750242657376789547994161944068724032922893066894496815777747504517438143053250836583597607275046860106414520056322188930237123525606437721917340452079326663531183148411351
 . . . . . . . . . . . . . . . . . . . . [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)
							c76aa61e5708d65a5a5a670131068d7b5531efc7
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'classworks.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d66f353ff0000040300483046022100a48e55e954ff89d01ca203727377d590569b7cdb77dbeaccfd8236655aa7288102210094d1289d241195b15bd857774ac4798f05bb56bf0abfca4d4d9c551dbdf14c9d007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d66f354440000040300483046022100ed52d0f68418130050d68c1d521d9f8c74d893a99ab2cb3cd8a99478c7e0832b022100f38a57d5d1bb4d6b9866d6e55ac9c965f4d385b7ddc6217d4f3973c2b0d5a4af
 . . . . [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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