highperformancelearning.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 03:16:4c:a3:04:5c:fa:1d:f6:cd:0f:6c:dc:8b:0e:aa:fa:fd was issued on by Let's Encrypt.

With 5 subject alternative names this certificate can be used to secure multiple fqdn's. 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=highperformancelearning.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:16:4c:a3:04:5c:fa:1d:f6:cd:0f:6c:dc:8b:0e:aa:fa:fd
Serial Number (int): 268924937628105017762018034351143205403389
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 61:25:f1:d4:33:04:ea:8f:c7:aa:9f:f2:29:55:44:2c:61:0e:37:4e
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 03:5f:2f:0f:6c:6f:25:97:92:60:5a:8a:06:10:67:aa:5c:86:32:ea
Fingerprint (sha256): 7f:16:cf:9f:01:ff:1b:b9:d6:1a:ec:37:f0:20:8a:5d:2a:80:da:6f:fb:ec:43:b6:8f:23:0b:35:87:5a:89:e5

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

Revocation information

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

Check the revocation status for certificate highperformancelearning.co.uk

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for highperformancelearning.co.uk

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

*.hpl2.netsoldomains.uk
highperformancelearning.co.uk
hpl2.highperformancelearning.co.uk
hpl2.netsoldomains.uk
www.highperformancelearning.co.uk

Other certificates including the domain name highperformancelearning.co.uk

(limited to 100 certificates)
hpl2.netsoldomains.uk
highperformancelearning.co.uk
members.highperformancelearning.co.uk
hpl2.netsoldomains.uk
forum.netsoldomains.uk
hpl2.netsoldomains.uk
members.highperformancelearning.co.uk
members.highperformancelearning.co.uk
events.highperformancelearning.co.uk
members.highperformancelearning.co.uk
app.highperformancelearning.co.uk
webdisk.hpl2.netsoldomains.uk
members.highperformancelearning.co.uk
hpl2.netsoldomains.uk
hpl2.netsoldomains.uk
forum.netsoldomains.uk
hpl2.netsoldomains.uk
hpl2.netsoldomains.uk
hpl2.netsoldomains.uk
highperformancelearning.co.uk
members.highperformancelearning.co.uk
hpl2.netsoldomains.uk
hpl2.netsoldomains.uk
members.highperformancelearning.co.uk
hpl2.netsoldomains.uk
hpl2.netsoldomains.uk
members.highperformancelearning.co.uk
members.highperformancelearning.co.uk
members.highperformancelearning.co.uk
hpl2.netsoldomains.uk
hpl2.netsoldomains.uk
genexdesign.com
hpl2.netsoldomains.uk
members.highperformancelearning.co.uk
hpl2.netsoldomains.uk
members.highperformancelearning.co.uk
hpl2.netsoldomains.uk
hpl2.netsoldomains.uk
hpl2.netsoldomains.uk
forum.netsoldomains.uk
forum.netsoldomains.uk
hpl2.netsoldomains.uk
members.highperformancelearning.co.uk
hpl2.netsoldomains.uk
hpl2.netsoldomains.uk
members.highperformancelearning.co.uk
forum.netsoldomains.uk
hpl2.netsoldomains.uk

Certificate

The complete raw certificate details for highperformancelearning.co.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA09Sk/pzACUJpwgz1ySaq
QI2mMI1HiA2bm5+1QIioqLhD+ypqvS4Y+fylxIcjUJnJttmUB+jClpSPTrcld2v5
F/Ujb6onCH/r2dvBSC+ypvGOZd4ufCOzaq9P/MFX2vkMm/Bl8PvGDePDWrHVEA2W
hmH+UbwSr1cc7M15WM6U4jvmgMZhi7BDImpwW2WeqJqJJHAO96VgKvXme3xjfzSL
aDJTjpuoKRrWZKtBs2y117Eaz9OAlvIv1MgaBYQbBiC4iwoLTPtI3PPvdZMgBb0u
tfdNbTjLTzdpfZ9I/A7XOX2OJKZeiB/Ms7HMoVWJwbsVsULbgx9kMwgIeRhxEZku
VQIDAQAB
-----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 268924937628105017762018034351143205403389
 . . . . . . . . [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 2024-03-28 14:12:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-26 14:12:03 +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 'highperformancelearning.co.uk'
 . . . . . . . . [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 26741141263901899917578585324490718163807495933920454080907637490223412077589540198820955092740851537205418838411243571003561588553922128835736070998949804539483179449419028246261459174586046093084638925746949068618713818260467858506829590125543248352247836540480567086252844109046343068857579959099816454544778883389382000523358497432541303022621463355868285824435831744191404518197206126107421779307024950661169988055991736924032039137921800605049984549870938161036672844479574007369007063442491984910057524285622792582307023963532358346343757282613451981881313287711415107270530759054082057178617891406250998574677
 . . . . . . . . . . . . . . . . . . . . [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)
							6125f1d43304ea8fc7aa9ff22955442c610e374e
 . . . . . . . . . . . . . . . . [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 (153 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.hpl2.netsoldomains.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'highperformancelearning.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hpl2.highperformancelearning.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'hpl2.netsoldomains.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.highperformancelearning.co.uk'
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018e859e3f270000040300473045022100a879f181c4004a21bdd6d76c65228784d78cd798ecc1378ff9a67d5a27686465022018944dd509de2cdfd76088aaa90c4c3b88b821000c0629c7b254c29cc74b6d94007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e859e3f2f000004030047304502210089fdbe9e65d8bd01460a583371acb7295eccfe8fb23a9e04357e5b3718e52353022004c0f2effcc7da29fcbccbee0ebfcc8dcd0a536870518b5600e2ec75b9d58ee8
 . . . . [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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