durbin.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 04:1c:01:81:ce:b4:83:04:7e:10:ac:b7:ec:90:02:40:62:21 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=durbin.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:1c:01:81:ce:b4:83:04:7e:10:ac:b7:ec:90:02:40:62:21
Serial Number (int): 357979053227595795044234404444751397937697
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: d4:89:c4:f9:eb:a5:df:c6:99:42:9b:ae:34:77:76:bd:e5:7b:43:73
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): d5:b3:47:81:ed:bf:a9:02:5d:df:96:0a:3c:3d:52:45:78:9f:63:b0
Fingerprint (sha256): be:76:e7:1c:61:a5:18:6d:2c:71:91:22:60:87:67:a1:1a:11:61:51:6d:ca:db:1e:ed:9a:e7:94:94:81:69:97

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

Revocation information

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

Check the revocation status for certificate durbin.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for durbin.co.uk

Public Key Algorithm

RSA

Key Size

4096

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

durbin.co.uk
www.durbin.co.uk

Other certificates including the domain name durbin.co.uk

(limited to 100 certificates)
mail1.durbin.co.uk
mail.durbin.co.uk
mail1.durbin.co.uk
durbin.co.uk
mail2.durbin.co.uk
durbin.co.uk
mail2.durbin.co.uk
durbin.co.uk
mail1.durbin.co.uk
durbinglobal.com
www.durbinglobal.com
durbinglobal.com
mail2.durbin.co.uk
mail1.durbin.co.uk
durbin.co.uk
mail1.durbin.co.uk
www.durbin.co.uk
mail2.durbin.co.uk
durbin.co.uk
mail1.durbin.co.uk

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 357979053227595795044234404444751397937697
 . . . . . . . . [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 2023-09-21 02:01:34 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-20 02:01:33 +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 'durbin.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 808561951101028553721439204225046171598990232193836840084661709516615884254114445451860997567826930133745015617711090846376687583297973446403229375897766884113908474044095506580865692341653802573553135935184271268319819393088718577819905359074274013021489513467304554927773910762742755642333219933886223711919852346536407689912164619356176178743807749241428851813886593424658276082219315184887557510979514388649416195296440840025861537124212966936155885277410453126208503722446853648342246953934163373482103661602330327568032576527546571154594946956617419274840128752334644378774319469165666438165882568081540852397250135912687439842990629990853770125050404575667924090008689745132340998147744538390182080276994690318715199235974446128724696557794247074295903186594332712060259404700081764095411928682123485822631683626761782803807234887848862479633632732421216428053236742502546747739942321579272226477227863489912877699912307550160431470105415745970668091302649937622351724819981862722154170806852850208737832953750300936578079479457953799326850999628586859849998787783255968067468412418776867396102228735755217720461859063032719721564060829282149285030034856006322799149563808631071414473397573918994352900815159718943046487749901
 . . . . . . . . . . . . . . . . . . . . [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)
							d489c4f9eba5dfc699429bae347776bde57b4373
 . . . . . . . . . . . . . . . . [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 'durbin.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.durbin.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 (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f2007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018ab5af8a4a0000040300483046022100c2aec5f14b1ac60b4cc3f9d66d42afa526e215a3ab9e2a2f6e89987de0c7f167022100b776df1411644e81f022a54c8b4acbb4496c63def7db3897f53ec5d82afce32a0077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ab5af8a550000040300483046022100fbd20ab60d2ca6eebea091049dceef5d72216bbb40accabe954686e90f3ec722022100df3173caeb5723e63dc3e238a176aba82df295498ff6fe98c9ff9e0d79051b02
 . . . . [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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