www.vit4u.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 04:1b:a6:37:3c:0f:9b:1f:c1:7a:31:e8:0f:4e:4a:e2:96:de 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:
  • 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=www.vit4u.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:1b:a6:37:3c:0f:9b:1f:c1:7a:31:e8:0f:4e:4a:e2:96:de
Serial Number (int): 357857706275714847774136050711953513027294
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 95:4f:6c:f7:38:bf:ca:52:e2:3a:56:ea:62:4b:a6:8f:7f:3e:d9:7d
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 57:89:01:9d:38:4c:9d:72:9f:b3:96:1f:34:3d:51:13:85:36:61:7d
Fingerprint (sha256): 9d:e9:69:99:ea:e8:f9:61:bb:30:72:7d:67:f3:e3:2c:a7:ee:ea:bb:c8:3a:79:c3:9c:8d:8c:67:f9:4f:f7:96

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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(limited to 100 certificates)
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monitoring.millennia.cloud
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dashboard.flipkick.cloud
vit4u.co.uk
monitoring.millennia.cloud
www.vit4u.co.uk
monitoring.millennia.cloud
monitoring.millennia.cloud
vit4u.co.uk
anchor.vit4u.co.uk
vit4u.co.uk
monitoring.millennia.cloud
statuspage.siteflow.app
monitoring.millennia.cloud
monitoring.millennia.cloud
isitup.vit4u.co.uk
vit4u.co.uk
monitoring.millennia.cloud
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monitoring.millennia.cloud
monitoring.millennia.cloud
www.vit4u.co.uk

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoxixBhLaIguCvUMv+gvE
//N/NmxS13XOz7WRi0dz9K/ZTiblZi9976iDBZeS1wQkygl1y5xj+Y9JYdJR3ukC
IK4UTczYdvVw1VrIP3uQKZ2n2zf3gRyKvIGvcGSRnM7p2ttl7mZyR6d71I5K67O9
wL5C+KzZENHuQN4vdA2sRGrB6LtRLteB/nkRo1A2MOjZ8xdPzJes4BMiSnI/9s5z
vjN3lc9O1WOeaAKw+hyW2AEvFZ3UT7WzKrZDiMv3hHhcvJXRIgsLLPxInA8hBN/h
d81jF7vXGAbx/d0HzYqkOLYWbdca3005lwQ08pZDei7RfGm+maXTD2ufCjShSIPP
OwIDAQAB
-----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 357857706275714847774136050711953513027294
 . . . . . . . . [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 2024-03-30 01:14:47 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-28 01:14:46 +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 20589019541387636495550524890957062476472605136394992219900379587757553780537991622234091397086495194321995925456072672062264905073381435885554814852178223240496333115236468282784356573347247223253282942745777385854964686882110773639352773553013171187239529801438271911146239005415248497213136719291816581470208472630320585488408051561193758508459624144980102439496913266390889266115414938408621676822649532794986352652911638266582965337434134598846464878766314501319742009172550942357834232605496369090288435647608398722295531175456648414512772415191407853703599431002327843772095405199997718914452588280992174952251
 . . . . . . . . . . . . . . . . . . . . [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)
							954f6cf738bfca52e23a56ea624ba68f7f3ed97d
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018e8d2359d90000040300483046022100e401694593b0cb413adfb9e5ca8c2a2c996f4679a08d02b666c4d84b20b5350802210084e9736b55eafccfec37b3042c6cacce1a923fb5e1151714c1116e0cd69df9a4007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018e8d2359dc00000403004730450220725461eee01e297e418cdabaf39e90e31bc20521ccda4e6141f2e1e78a8fea2e02210092f0a1c1ca908eeb545bd5efdd07e6fe3fec8f03792fe72c9ca1e60b736e5c96
 . . . . [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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