wellfoundation.org.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:24:f0:a5:b4:52:38:ff:5f:de:d2:ca:f1:66:2f:d4:b1:60 was issued on by Let's Encrypt.

With 6 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=wellfoundation.org.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:24:f0:a5:b4:52:38:ff:5f:de:d2:ca:f1:66:2f:d4:b1:60
Serial Number (int): 361019184041512887200072236426594148987232
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 49:ff:80:05:1f:c5:40:27:4f:18:dd:5a:48:71:ec:fa:04:c2:22:44
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 07:f8:c7:87:08:be:e0:28:78:81:b2:ab:2f:76:e9:6d:f9:df:b8:13
Fingerprint (sha256): e9:e7:65:aa:8d:f8:d5:20:7b:11:20:d8:7d:54:95:bb:2a:fe:f5:21:f3:a7:d5:88:d0:4b:7f:6a:02:2f:52:72

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 wellfoundation.org.uk

6

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for wellfoundation.org.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

cpanel.wellfoundation.org.uk
mail.wellfoundation.org.uk
webdisk.wellfoundation.org.uk
webmail.wellfoundation.org.uk
wellfoundation.org.uk
www.wellfoundation.org.uk

Other certificates including the domain name wellfoundation.org.uk

(limited to 100 certificates)
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
*.wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
wellfoundation.org.uk
www.wellfoundation.org.uk
wellfoundation.org.uk
www.wellfoundation.org.uk
wellfoundation.org.uk

Certificate

The complete raw certificate details for wellfoundation.org.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApgwFpBJOXw7briqe+rJn
30UAlMIGkz81kmpvHi6bmDh5pqIjB4Vzb5bLdAfyO6KI7Q6wJCOxn7jwEmFZmiTI
WIfei2iNZKvjoa77//+5XOQtOby/NHludw7np7R4a9Wfk/DH4flYbFhErc5ZSF4Q
nI00Wes7v2kp4DNkw9ImYjLPuDBdgZEa0GxWGbu3nBI80JMcC+gpf8EDK1HlOnWO
7bIrGMfWG8bNcsxuOKjJMvDhabm6B5dA76ocTcuACeGOA0MV1jhoRkWz3V1sl+2G
wqV2SuTbUv6LBtea1Ha3mslfC8/KAoQ9Rl3QT/PqmCjRMT9E1rL8FuXtJlzix8kx
4wIDAQAB
-----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 361019184041512887200072236426594148987232
 . . . . . . . . [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 2018-11-12 04:53:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-02-10 04:53:56 +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 'wellfoundation.org.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 20961486910667256619992072802825076340090034217110860691255861267337317617227081831154964956943287748058668461628167668396280666852982817345284517948202607372429580703796126009931016722965012003608363191032239295765018341772354140280003377782472158482436251604521649412105609599506432713917243457659809507956350961692206436705933784134708588881121717523016309405944352905167032196122447221618717425068799256512436207135774111011273051942061733555701002193763295526862813767814615946327332455120982607152470590295788801201434622760936400885753954165210294379565372323354824735628941485286862092575300309550984805822947
 . . . . . . . . . . . . . . . . . . . . [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)
							49ff80051fc540274f18dd5a4871ecfa04c22244
 . . . . . . . . . . . . . . . . [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 (173 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.wellfoundation.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.wellfoundation.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.wellfoundation.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.wellfoundation.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wellfoundation.org.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.wellfoundation.org.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 (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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076005581d4c2169036014aea0b9b573c53f0c0e43878702508172fa3aa1d0713d30c00000167067bd02d000004030047304502207e4302d8baf7a84d560b92613e74ac1ff7fe4cead917fa70452e3dd9db13bf4b0221008309b9fc9d65eb6e51e0785f1f5516512b315965edf493f036af2515a38613a8007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000167067bd11d0000040300473045022100c3b85ec59dc9a06e5b382e78d36734050e88896b9434e9e539974f77095f79f3022038693802211c7c26c21221e83287d4caf440f4f11f711fee0257d922a2c4e056
 . . . . [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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