niemen.co.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e4:aa:77:8a:6f:e5:4d:ae:67:c4:0e:9b:58:28:b3:10:3c 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:e4:aa:77:8a:6f:e5:4d:ae:67:c4:0e:9b:58:28:b3:10:3c
Serial Number (int): 339147826903702128273559519714934858649660
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 48:ee:12:25:67:b7:67:a6:0b:cd:1e:8d:31:5c:3d:79:71:12:a0:a2
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a1:d2:eb:ce:18:44:c4:5f:2a:31:bd:8b:31:ee:9d:9f:07:85:56:fa
Fingerprint (sha256): 01:7d:6b:f1:89:f9:d2:89:ad:71:c8:d0:d8:1f:d0:eb:37:16:c2:c5:6f:a3:6f:a6:a7:df:8d:17:3f:a5:64:e2

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtY3ko26sUm+wEqffN9vy
Uf1UdORuHwcU5wAlKVw502jERPrTNg9xHohinlkUHhdtYcXZEUKmNqpUGX4GXoQK
iabfxVBperubsmPe0Kh0sPTObBNVit2G7tNA+PQAwRr7GOCRmSVLjtOwA7xpS10C
nbnZJZH2Kk7ZR6Ndf0Iaq2A6MP9BIAolki4fHPGy2z566ewEp6bzQIKYCdzybYDQ
byopCRdEYPiF3oVTHEVrjUepBQfCXX0+bUv5z6dtIwVYEVEvHelfACNQRT8RbRAd
W3dhnPbSQnfBANNXoU3Q7Sn1/j0Og1sAwu8zHDfdLlfG4mVZndr+C8w7dkRTaUaa
nwIDAQAB
-----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 339147826903702128273559519714934858649660
 . . . . . . . . [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 2019-04-20 04:59:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-07-19 04:59:29 +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 22919103303548173661974275764731280690366586478245261225515448745738320489200098130205922946689650420541250579409316058922539758866403256594481146900346816949859916277005415937795172857908137614200871398094793923523966718840176644690541728394431137781821951962534831601695784805855766364938136582757943364017637100725929074858376331354827259945654756507126912707868074770406704188785570311402285319159441115153068490665588095049381946000751061576137682676164538368559126643675498105260270269744023086988790867167208068040953770836423393687165514782284276789437685434607883623940451998346818995203409865050019657587359
 . . . . . . . . . . . . . . . . . . . . [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)
							48ee122567b767a60bcd1e8d315c3d797112a0a2
 . . . . . . . . . . . . . . . . [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)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016a395408db000004030047304502204696961afa06613d7b636ba298522810f519f8ed3ab795ed084d46fe8cac44c8022100ae9778b25f7d86124adbe70b022441f8a0d16a459324c11a9abc26a371b5bc92007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016a3954075f000004030047304502204db9d8e1a7a9e87fb23835e9836a08a4e41d2957c157c02acbf5dceb35ab880d022100ae4f52af1ddac36cc8bf10a9bedc3b50dedb0b05d01051804143809248c8206d
 . . . . [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)
		0078c762d23436450536cbd1e3c7b2faa0f6253ae468c0c505ae61836c6c3c7b15a2abea0356e0e9e21b99c6d4d3db70b4c8152b3de3e75d30ab435e5f17655f1a624ab7ead7efd289618e6c8b8dba22f50f60f0bd5943d18a16746545c52fdc3e37c0ecfb95c0c2ea31cd5a149691905cb7d35980ab568ffc2407fe219c229e5dbc61b77104a5c7828b6dcb6a2f32d866f48bd7a954763182268517470c898e57c6a264959f2a94044d9ebba9e00b9ff4a0075d48c500be13be1dd6801b26ac1f7ac5a3a68ecca3c84a1a243266f310e08146aca96de6b64e4860b9ab8cb980df014e1aee90574ed5bf826b9e93381903d4085f9c0258e20f0984c8182d9bbd0d