www.vit4u.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 04:46:90:a7:5d:ca:ad:62:c0:a1:68:76:bf:96:3c:01:88:b6 was issued on by Let's Encrypt.

With 2 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=www.vit4u.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:46:90:a7:5d:ca:ad:62:c0:a1:68:76:bf:96:3c:01:88:b6
Serial Number (int): 372461187258796924489431911812778816538806
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: fe:a7:22:b2:79:0f:f6:ee:0e:f1:8c:81:8a:b9:88:cc:5e:fb:be:fb
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 47:04:71:c3:80:be:6e:35:cc:e8:e8:ce:99:51:b5:29:da:21:44:40
Fingerprint (sha256): 55:19:32:a0:86:a7:2d:aa:1f:22:62:dc:5c:b7:59:e5:c1:ce:71:bd:3d:12:a1:24:81:e0:d7:b0:e4:8e:5c:f3

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

Revocation information

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

Check the revocation status for certificate www.vit4u.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.vit4u.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

vit4u.co.uk
www.vit4u.co.uk

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Certificate

The complete raw certificate details for www.vit4u.co.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA29BW4tlMRAWaAK4XKyQv
WATjdNBhgcNgJPt4FET7JOWpICUgPfghpQZ3EvdP/Wf4MMGrU9T0Ad5MYuwU3na8
rMU2vaAmxup04gpQ0jX+pm6xnJ6YYIRnE3weyb+tUK5UrAm6ugu4dU/+yL6sPgvT
8YSjwWe+d5t+NeqV7TC6rmMklDSP9BH7kQYdwrLDR+P9ELPeSGg72tq5SigiFFnZ
aWQrC0rX5DXPxqZDNMkONJsuhU0Jf4WGzpnkWtXUUhgF03Y0aa8AjfsaF46xVSqT
h2TWeDs23ZVVdRLUrMQ4IWI/fRBim77dZAUGJbAXG1SQLjA2hRg2hkPE47CdbF03
2wIDAQAB
-----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 372461187258796924489431911812778816538806
 . . . . . . . . [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 2023-07-27 01:13:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-25 01:13:55 +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.vit4u.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 27748924774205969472824854967924543276718067741748043486395355833176922817818473719417573923207937285447845020675547056375740187121508766365532355106223117304158978965793073759209974926490023953142932913741799876721718173299474170826953909065368039535458743520321497555491485281268055426271818549096617077272335108856892246532145515060948795878839063116576683839269313412569863650128791989114255446533842175753356077539509592310217668586369544331742560182958233076875702067610674403096110703690358721208117666814224589302884954676013938817698934780531948921082507252480896040532189013238820182398254960160194697181147
 . . . . . . . . . . . . . . . . . . . . [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)
							fea722b2790ff6ee0ef18c818ab988cc5efbbefb
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vit4u.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.vit4u.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)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000189951fcdf600000403004730450220685d7cfb539abdd712abb951e6294f3cff03c75380d4a666b51c3fdb076129f40221009ec97b8208ff4d737b321dee3c2f5206237d24d921a919bea95c4b4f2181bae6007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e00000189951fce110000040300473045022017bf1c7cbcf3d5e47deb14f012794be853027ab9788c92c663e942c203692dae022100d5dc8bb0aacb3dfba0addccea91503a3ec99fdbcc273aeb4047ed049aecd0d8b
 . . . . [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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