wfa1.clf-vps-001.clf.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:53:86:68:b5:33:47:9f:fa:3e:b7:72:3f:98:f9:b0:23:f5 was issued on by Let's Encrypt.

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=wfa1.clf-vps-001.clf.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:53:86:68:b5:33:47:9f:fa:3e:b7:72:3f:98:f9:b0:23:f5
Serial Number (int): 376871240406966286788829167470068515218421
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: d3:c3:f8:e3:8a:a6:5b:08:de:6b:8d:ae:d6:12:ea:57:84:fe:88:eb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c3:c0:3a:5d:ce:42:9d:75:05:98:1a:47:d3:b5:6a:26:e0:83:b5:ec
Fingerprint (sha256): dc:45:92:57:68:33:5b:22:38:f2:15:ce:45:65:74:12:90:3f:de:30:cb:b4:a5:b6:6f:63:06:c0:44:c6:e8:25

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 wfa1.clf-vps-001.clf.uk

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for wfa1.clf-vps-001.clf.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

wfa1.clf-vps-001.clf.uk

Other certificates including the domain name clf.uk

(limited to 100 certificates)

Certificate

The complete raw certificate details for wfa1.clf-vps-001.clf.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr09BVm2FpT0qkjpvdkRM
9YYFMCiX0IcgTkYRIS4JQe1jEULUsQoIZy5yvOIWmfVA9LtDe7h3FbIMM/q4nvGb
jbms6ITS9sCcRMBdrZ6yAz/lmjvz+LD50ck3Qj+1bzxdcHf17R3In8ZZt4zMn+bI
blSKiLPYj9Si4oCx1cqmvjFraWITSXVpcy7jpuo2PJNS/ww2gmlROIIPTPkXnHDP
u/KxaWGpS1mNbY2uGGHfKMnbR+VQUkieB2BOb/nuWMJk5ra04B2tTgat6xOrfdpJ
A31yM/9g6OgJzG1hj8Pk8sHioB0paLw2pZe+CSmMs+Q/IjS2/8JRarp36KhwN5ym
YQIDAQAB
-----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 376871240406966286788829167470068515218421
 . . . . . . . . [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 2020-02-09 00:49:30 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-09 00:49:30 +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 'wfa1.clf-vps-001.clf.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 22130785577138309100550626288246485787134935761967917032444118480208090056796255252233318649555321806236985079685018877357959222391174254474823746571211075016930158102479913109409849276170027411801164268824613966465666710228674155070455824337554285165117879403288505130439598644836695044496487387575331909001298087961249534812327678456424724906206325302261677909375905741086380493337522956925974736654219640141397954063954734833540398892960213766934622284737220583658393118409532649824639078689251969115292570753965156793004544295693061085870136812948738526746385615750895739520192245479895371753203173245406404191841
 . . . . . . . . . . . . . . . . . . . . [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)
							d3c3f8e38aa65b08de6b8daed612ea5784fe88eb
 . . . . . . . . . . . . . . . . [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 (27 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'wfa1.clf-vps-001.clf.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)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000017027a32f0800000403004630440220095a1369891942ff4b0d65796e5b69645a65351266809edc62264a82afd2766b02207cb0054c6bfcae42c0ddcb64fd847b711972749e915b3da24f796f3b3506b682007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000017027a32ef10000040300483046022100b9498eddcf704cd90eb7996643ef805d0f2d306cd8a2f989015817315fb2ca1e022100f933f694203fae22abb48715d44d9ce946e9fc793c8fc8ff6a472aeb5d9a5899
 . . . . [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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