ithaka.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 03:6b:62:d5:0d:78:07:ee:d6:ec:2b:d0:5c:e8:b6:c2:81:4d was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=ithaka.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:6b:62:d5:0d:78:07:ee:d6:ec:2b:d0:5c:e8:b6:c2:81:4d
Serial Number (int): 297878441631820104687822501371179861967181
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cf:1a:72:9f:87:5b:aa:e8:a8:3a:c4:ec:73:9b:2e:46:2b:0e:93:7e
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): e3:1e:10:fc:67:7c:92:20:1d:a2:1c:37:8e:61:11:bf:c2:87:18:55
Fingerprint (sha256): bc:71:a2:d3:33:0a:9f:a3:23:fe:5a:89:26:03:ed:54:d1:77:1f:cc:b1:a5:ca:5f:df:43:70:88:47:43:40:78

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

Revocation information

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

Check the revocation status for certificate ithaka.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ithaka.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

ithaka.co.uk
www.ithaka.co.uk

Other certificates including the domain name ithaka.co.uk

(limited to 100 certificates)
live-ithaka.kissdigital.co.uk
ithaka.co.uk
ithaka.co.uk
ithaka.co.uk
live-ithaka.kissdigital.co.uk
ithaka.co.uk
ithaka.co.uk
ithaka.co.uk
ithaka.co.uk
ithaka.co.uk

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuY0ultI3Q07/L/yZNTkG
/a4PxG6PZI+TBBPhOEHEo59RTjtswXKXZq7WqSQe55YwJXcsq7GPnIQvfHfKxNuo
jyrLjOn3S4iifvb/oTocg6HeuBXkKftWHmgpKXIN6TyV2FphojcVQ8r9MEpBY6Zf
4r2/DrsfW4BUENp263QTZGKz1rk31nc0eiN9udKpyreC2PMXoFaQP+WUsx9YaJNn
x2LGNOkrDeZlspCLb1hmAlmsasJDiysa56n2eRy9fThxFCXEqA6jcH3WwloO3/Ls
81DyBSg2z4k9tpFVfLAarn/DrW/F+11T1qkpnDdnMtykWSy/p2FCGDmavQB+vF2t
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 297878441631820104687822501371179861967181
 . . . . . . . . [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 2024-04-05 16:52:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-04 16:52:49 +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 'ithaka.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 23423705852173712194551327617827930304374057784720368299682773860258347837894720731158076716366348149354562032808361737298206175994700817370135896693036902075210698363953621505354522007857029852009656722053336960020401998619001903710174754899495503084463251991576245010875288686958272399270946441426440051968823519351815130546273179981516782146403809231782059208611192127831029057432880432167428928725469141123246020228588722868490466065404974304146945312028440629984024378533855893919089838561928951893705583063488247858804477248663436931983906171257572602189468686198140210751109072697933107852171377802919519563067
 . . . . . . . . . . . . . . . . . . . . [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)
							cf1a729f875baae8a83ac4ec739b2e462b0e937e
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ithaka.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ithaka.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)
							00ee0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018eaf6450c70000040300463044022062188f53f4eafe2744349e31105965cd5846c65fc27594d048905da36a647616022047ef7987548a3850132a5aec54d384804c600bfe1f18082dcf0960e807b6f27e00750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018eaf64510a00000403004630440220237158a3282784fb533ef4bc5ce26a3d0287d1cb8de40fd74dc855428fc9c9e602205f5f59a97911f249b3ef4c62cabe0099477098b80599d0fbccc4cbdbbf838cc5
 . . . . [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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