niemen.co.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:b3:6d:2f:8e:81:b7:a2:10:d0:7c:78:ec:e8:3e:ff:4c:62 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=niemen.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b3:6d:2f:8e:81:b7:a2:10:d0:7c:78:ec:e8:3e:ff:4c:62
Serial Number (int): 322392534254001060231921948280748368677986
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cd:bd:1e:71:2a:9f:66:ef:03:51:21:70:db:36:cd:d7:48:f7:95:88
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 1a:d7:8d:c5:27:fa:31:15:65:a2:1e:8d:1d:f2:19:e2:60:02:a2:fa
Fingerprint (sha256): f4:35:21:db:fe:0c:e8:84:b6:aa:ca:e5:11:9c:56:68:32:23:0f:a5:7b:e2:2f:c1:72:c2:1f:0f:cc:23:1b:04

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 niemen.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for niemen.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

niemen.co.uk
www.niemen.co.uk

Other certificates including the domain name niemen.co.uk

(limited to 100 certificates)
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk
niemen.co.uk

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsWmQoZZbZW06Ti2ZIZCD
W52fcNxrZpbXOV+w5PobL7OAqa7/yCchxXo7bqcdlikoEApUGqO8e/p1o68FBBia
FRyNGxHEF3rJPniU7waJ2CiHEd+LuhJDBvyFqEhMkusPW1FvAgDF5eF5ZTc0stPB
EVLb+zBjddAhCb7H5fK3ItJ/INkFig+nwkEcHmiAF6mes2DJ7ey2Oe3C+pJdledB
1N0mIRCDcp4uzOWihF654C5cv0puGIyj+JmrpWrBHBnRIbPApP4QTMdJjbmF/WB1
7hE4a9fDYQGs362EwAKv9k12RYtMqqQyyGDR7AvAIzvV8SeItUn8S5FYKM73KkBI
SwIDAQAB
-----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 322392534254001060231921948280748368677986
 . . . . . . . . [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 2019-06-19 04:20:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-09-17 04:20:23 +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 'niemen.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 22396236003697667911029180853097436444918162712427486406296580553318756016230865272147522345687779346598215107360160450315401756205033035395995113084622768568125342798712163495595843457522918120404805269079075428936490110009758861468211216879696974006841869710162301841966383705199337884934177669598108212007049641640312767800855519698928654585956681325014148701708356019757831797953660420135159038847055122044664734191437119388696283003864908506486464278074751163977733219348772132940281153152604002178149009821428862651452620988696262271101591822634783878028812305493572437340158145870254042823355167781820391508043
 . . . . . . . . . . . . . . . . . . . . [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)
							cdbd1e712a9f66ef03512170db36cdd748f79588
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'niemen.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.niemen.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 (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)
							00f0007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016b6e2dcdf400000403004630440220063e3c9de617c5213d916629390083a7eff1074516c5ca0a78f9b7728bac50a90220188dd52ee13c3607111e80f85186639ac45168ba005f37a469a5fbb9569df08900770063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016b6e2dcdef00000403004830460221009a4ba1b2f37665461d68a90c06b63576486870767cd9f1d9124161d84bb17ae4022100a9e4a06784bf533340fb2b6695ac6daa84ee8972cfcea2090903e748ac55788e
 . . . . [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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