dmi.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 04:8b:a1:15:fe:bd:64:8c:4a:d4:5f:2c:df:33:ac:64:20:3b 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=dmi.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:8b:a1:15:fe:bd:64:8c:4a:d4:5f:2c:df:33:ac:64:20:3b
Serial Number (int): 395962512641344113841512196140738827001915
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 94:c8:1f:7c:08:7e:25:2b:28:06:b4:a6:87:97:32:28:31:3f:da:e6
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 3c:fb:dc:26:a0:32:84:eb:c6:19:70:2f:65:0b:fe:d6:0c:7a:0e:27
Fingerprint (sha256): e0:c0:15:fe:03:a9:74:52:8a:34:c5:32:dc:cf:51:19:b5:c3:1d:aa:9a:76:a6:00:3a:2f:a4:bd:fe:ef:b3:59

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

Revocation information

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

Check the revocation status for certificate dmi.co.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for dmi.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

dmi.co.uk
www.dmi.co.uk

Other certificates including the domain name dmi.co.uk

(limited to 100 certificates)
dmi.co.uk
dmi.co.uk
dmi.co.uk
www.dmi.co.uk
www.dmi.co.uk
sni.cloudflaressl.com
www.dmi.co.uk
dmi.co.uk
www.dmi.co.uk
www.dmi.co.uk
www.dmi.co.uk
dmi.co.uk
www.dmi.co.uk
dmi.co.uk
dmi.co.uk
www.dmi.co.uk
www.dmi.co.uk
www.dmi.co.uk
dmi.co.uk
dmi.co.uk
dmi.co.uk
www.dmi.co.uk
www.dmi.co.uk
www.dmi.co.uk
www.dmi.co.uk

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAumdKaLuwsUg+gD8WR38k
tGNqb/1n6+UmioATnIKS8iQgqCQck0E6oR5O/VoYLgzU/M+nBYOBBU3zNb3deBRH
XpjgknYEFgQZHFWaGgdxuqBP1GSKNUS2F43yjWPFGkiUdk10Jj61mEoOSMfHXnlQ
79R66Q4CLatzKX8/gRwM9QImUg7o/xlHJgwmjQiNe18CTVE2MNCamhj83m+TRmWV
hgfoQJwUy5PzIL+ol+jFYyt3BGYWJSial3TDQa78dieW/HQDT3eD4xWZ/OD/epae
dQn4zG5c2w75XyzA6XNrYucR7TN7AAHoN62Oz7/VscbAe87YMqfV8k8yaw+7f5rl
XQIDAQAB
-----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 395962512641344113841512196140738827001915
 . . . . . . . . [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 2023-10-07 13:03:47 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-05 13:03:46 +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 'dmi.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 23531259246785063280525240199555756153927919248015626608952445671390888996738486237315392672699969745671675491006938572107140802734142208380681726147780120925512688918258927824121826145979970382244588870466242695752651808691426739316365732100474706130150724248951660033912470290662773376972819668069041388628325055643789500444971101549819308590887252088666742374428375623620371543008146695559977223576948263933659287971511171570925257833115577319697744637226585825252396792735785787901311853965565438439901783501094219620169698456597962527023538384290488727594318540644561855368040065845288201537034004048915560326493
 . . . . . . . . . . . . . . . . . . . . [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)
							94c81f7c087e252b2806b4a687973228313fdae6
 . . . . . . . . . . . . . . . . [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 (28 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dmi.co.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.dmi.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b0a738f27000004030046304402207a31d14ac893b29e588e05301ca02482e541b50133d36c4c9bdc9aa6793631f50220239d829f166add44719003d9157aad88408f16914f704797e79da99a5e5ddd160076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b0a738f1a0000040300473045022038fd34cdff626fad0bf83577fe39e544e539bf535610161dc0974cea820a7978022100cc178f694f3bd48e10f440bc12dbf31f3de487af2fe258ae2ee1aa2e7ea868e1
 . . . . [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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