*.highskill.fi

Issued by R3

About this certificate

This digital certificate with serial number 04:0d:36:0e:21:d7:ff:16:c7:d4:81:f4:32:f0:b5:e6:49:5a was issued on by Let's Encrypt.

With 4 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=*.highskill.fi

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:0d:36:0e:21:d7:ff:16:c7:d4:81:f4:32:f0:b5:e6:49:5a
Serial Number (int): 352944666187374109634858508002405745314138
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 70:01:2a:ad:3a:12:72:f8:2f:3d:de:02:00:cf:da:33:66:3b:60:36
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 27:e4:7c:f3:64:47:3e:fc:48:7c:91:cf:ad:c5:09:2c:59:62:92:45
Fingerprint (sha256): 43:c5:65:02:ff:81:df:bf:93:6e:fc:7a:98:4c:0b:90:18:6f:bb:6a:a0:71:6e:5f:3a:2d:43:f5:21:71:fa:da

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

Revocation information

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

Check the revocation status for certificate *.highskill.fi

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.highskill.fi

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

*.highskill.fi
*.postilokero.net
highskill.fi
www.highskill.postilokero.net

Other certificates including the domain name highskill.fi

(limited to 100 certificates)
highskill.fi
mail.highskill.fi
highskill.fi
mail.highskill.fi
highskill.fi
highskill.fi
www.highskill.postilokero.net
highskill.fi
*.highskill.fi
highskill.fi
mail.highskill.fi
highskill.postilokero.net
highskill.fi
*.highskill.fi
highskill.fi
highskill.postilokero.net
highskill.fi
highskill.fi
highskill.fi
highskill.fi
highskill.fi
highskill.fi
highskill.fi
highskill.fi
*.highskill.fi

Certificate

The complete raw certificate details for *.highskill.fi in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu9DVqaaYH8+rB/NCahEo
5ImDzpf9CiP22i6ghiQq4zWPx6vxxbB7Wzh9l8VRDS36ETVoIR718xVmBg4JNt/1
k9YDonI4WtcNgd6ydmRxoM+cIElCd1PNbJFhqZ0fCdTo1e/Gpq8MA3/NaXatdqPM
2lGuNoh3sWVjyhmCcxofjpk85uUJJ6I00bhM+U2mJllKv2f4L2iXHpKiNIKpAv4D
0/uak8v1SD/JkG2tJjADdXGa8eSTJ+ZS/+VTITzaVu8pfOvOeLvDKsGz/TdXkOlh
EvNx1hWq1aP31gcCmfZ6e3Bz6tpfDD/Smmduv/cmj7PPCKILa+2Ly44xzCZ/zZZi
pQIDAQAB
-----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 352944666187374109634858508002405745314138
 . . . . . . . . [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 2024-04-24 06:48:52 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-23 06:48:51 +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:12|false] UTF8String '*.highskill.fi'
 . . . . . . . . [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 23709543217857331926993763763809569485790667024863523952145636470774633579195182918849540190674322714490053905436773824603701391789223730092931375440834225724782810850588469966915801778241041774718581958502555620610927317168670346465144166230458000795553409857558701638110974523830821694872300813922074697138934050024032457885129274306912829293646853390741056453885576077316764279834497709470933686870861773923171378932461995255426470521966115546351875039797488547893178086914132298553640674192326236024047591439859911024031305523713574214437897398129222402299145175571120850062718825623514935566222018602490532356773
 . . . . . . . . . . . . . . . . . . . . [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)
							70012aad3a1272f82f3dde0200cfda33663b6036
 . . . . . . . . . . . . . . . . [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 (82 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.highskill.fi'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.postilokero.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'highskill.fi'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.highskill.postilokero.net'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018f0f142fb70000040300473045022053e353d2144f744a47323b26a16c3b5d603730f75973116270ea6d53adbc444c022100eafc67c346b414b2afe6975e75a80d595937dbe8fb1eafb9509f4ba1a720c67600770076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018f0f142fdf0000040300483046022100cf147a92ae3a09e6e359a9c04fbe5c283a17ccdb76545b201e1524f2fb0b9862022100e00caa0136bccaee86f9fe04877c75357cf945a12e8b43c4988f1a118c0f48f8
 . . . . [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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