www.vit4u.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 04:4b:37:4d:19:08:2e:10:4e:e0:b4:87:1a:57:af:99:71:14 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): 04:4b:37:4d:19:08:2e:10:4e:e0:b4:87:1a:57:af:99:71:14
Serial Number (int): 374043829100445970318146235542059662012692
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: cd:c3:9b:5b:a0:62:e8:03:af:d1:24:44:43:38:26:2b:2d:18:6c:d7
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 9f:79:c5:96:50:e7:e7:ab:c0:fb:6f:3e:1c:3e:65:b0:06:da:bd:a2
Fingerprint (sha256): a6:90:4f:d2:71:97:d4:76:3a:c2:e7:97:7d:8f:7b:91:08:18:fe:9e:26:b1:27:c8:59:04:e0:8f:1d:5b:f9:30

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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www.vit4u.co.uk
monitoring.millennia.cloud
monitoring.millennia.cloud
porinimon.porini.it
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demo.webmon24x7.eu
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anchor.vit4u.co.uk
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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA8JJR4uaJR+RH38CxyW4e
2On0YvOVfogqlJTz37LQuC1HhWHTemMuT+ufvCKv5x8sGGCLHspk53QknwSW7CRY
qBp4uflleUJUXDT3TkaovtXAEBMnVSgatwgXYu7ikV3fAfwjqhK6z4hHW75N/NYm
993PEzo8qFehL2VxbxPGh8rYoRsXG0W2OdTCrjNv7waOgquxDitEqEdIk7GgrMr5
rM1E2dYY59iHXXZAjzgsBAO3ZFnHt9Nbi1hRKXxvjNLXvPKUXwH3GQRQQja1gj2C
zdh96yH3Xu2OgRC8PPMTdELF0qT3RAVpLECi1bucOsRikccoplO8X7r8pJif+kjJ
MQIDAQAB
-----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 374043829100445970318146235542059662012692
 . . . . . . . . [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 2024-01-28 02:11:35 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-27 02:11:34 +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 30369346208180001022914934154168296722038712786551401093232808500690649333938559785069523400146137270359968463001160953345653566715525228765768555451725951415381626588711751244839630986995777902684048089307371642527990451015725078395363807806564209199804608490626477013243670672126816900629127827240026892778453451976380096951636148175368832544570182798145581035183922160162782342657251809592650246175139549462893050364715311682675971276970098611153874595983989123179502550348604550973426741338346971037464701948417603514790167386737729257653944601156329383473390177876169769752432015574328347405170532963340616517937
 . . . . . . . . . . . . . . . . . . . . [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)
							cdc39b5ba062e803afd124444338262b2d186cd7
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d4e0d119200000403004630440220301083036ec14831c182ea72d998f093dd120c167e057ad3ca2e7e9c8fed030202205330108d298772326aefae19354fa4510023064e10c6c9e298d1484bf4dc7f4f00750048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d4e0d11940000040300463044022012134f7fddcf01d6fee98d9952f3797125c634e26aa2859fb16bdace16eac27702202db02301b451d41c1ca68f5637a05780f5180d92a197be17f1b9d0f4c499522d
 . . . . [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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