dmi.co.uk

Issued by R3

About this certificate

This digital certificate with serial number 03:a6:05:04:fb:51:ef:4a:1a:de:d7:ac:e3:97:e8:f0:35:e8 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=dmi.co.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:a6:05:04:fb:51:ef:4a:1a:de:d7:ac:e3:97:e8:f0:35:e8
Serial Number (int): 317830402710699231778441803994009544177128
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c5:49:a3:e2:7b:5e:15:54:80:34:0a:d6:c9:97:f1:b0:1b:6d:10:10
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b6:b1:a4:52:f2:72:e1:c4:7e:92:f2:1a:34:d6:61:82:72:e2:3b:4b
Fingerprint (sha256): 62:70:4c:e8:27:fb:8e:3b:37:59:8e:e7:5e:cf:1f:24:67:8e:63:5b:f1:31:dd:69:ae:ca:85:17:2c:6c:3b:a2

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-----
MIIE7TCCA9WgAwIBAgISA6YFBPtR70oa3tes45fo8DXoMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzA4MDgxMzA1NTlaFw0yMzExMDYxMzA1NThaMBQxEjAQBgNVBAMT
CWRtaS5jby51azCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAL6oL9Od
esXxQVUZH4nOEu7D+hQQh1ZbInT8+jR0r8Unbg3MYTGZJK7WW/AsJ3mWBcHNYjes
VZADdQYbhqt+8oi/WAp+GbxRII8Y7kADSmld2ANqBUyeLVIVi5NxxgCHOLDKUVa8
rmKg+PyghHmWvYvZ3B6fF7Jaq5z06h2gp6XAHmxR2620GTYfqzmkjEHw7LPWZ3pc
fIBb9V0whga41pdTaSrfXkJMkGRglK4ZZz56BUi/YKDtB7l2XplHiq2uuFdYOzg8
Y1lZeLEWLdjk8GGu2N5lfJFH2Q1NDxBIKmqDOzS0U7rUVG3jiIztE7G6oLPyvCIr
+TCA1mBjidjaywMCAwEAAaOCAhkwggIVMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUE
FjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU
xUmj4nteFVSANArWyZfxsBttEBAwHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA5h+v
nYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMuby5s
ZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8wIwYD
VR0RBBwwGoIJZG1pLmNvLnVrgg13d3cuZG1pLmNvLnVrMBMGA1UdIAQMMAowCAYG
Z4EMAQIBMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHYAejKMVNi3LbYg6jjgUh7p
hBZwMhOFTTvSK8E6V6NS61IAAAGJ1XgE1gAABAMARzBFAiA1D11OG2/lsECnTTPn
9mAM/yANFy42FxuyE+PisTNIuwIhAPT54PvV6iZuJLtQiehuaPSCbSTXaQo81lEg
bOJuos5vAHUA6D7Q2j71BjUy51covIlryQPTy9ERa+zraeF3fW0GvW4AAAGJ1XgE
uAAABAMARjBEAiB2p6UcfOgJaE38OokwS851WFu/5yRyQwyUbX7LiXGrhQIge4sF
JmFzBOfuPW9DEy3yXr0WwihEpO2q5dnW2Y71idowDQYJKoZIhvcNAQELBQADggEB
AFtvYBZB5INP5/+7wzDS+GLlhE4TVjNJ16Fub/HoJBGCmLhkliZE1iu3n7Acq7YP
fSXgarhVBP1nQ2O8Zk/gCLCTKpxANi/BWIS1NtnEuYcvB4ByOnwmmsxRNPXh4O1x
DucT7luhKSd0rdIamkIteewBdslwnOj+KYKCa6z5jLz/9Akvrm8Fsn0LJabnBAa4
MJ9zW0kSrRMLoCPPDUpKmzgfQIyOoXImY77JMPQAGHC9fF/T0QT96EHLPcR77DbT
zwoK2zSGdhjkMBKyv2FbNYCKmD70MXhyMuO4qVm6Vg73bVQbZD4p10/eCmkpMDig
zuf6T0FwLD4ncct8pRhjs14=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvqgv0516xfFBVRkfic4S
7sP6FBCHVlsidPz6NHSvxSduDcxhMZkkrtZb8CwneZYFwc1iN6xVkAN1BhuGq37y
iL9YCn4ZvFEgjxjuQANKaV3YA2oFTJ4tUhWLk3HGAIc4sMpRVryuYqD4/KCEeZa9
i9ncHp8XslqrnPTqHaCnpcAebFHbrbQZNh+rOaSMQfDss9Znelx8gFv1XTCGBrjW
l1NpKt9eQkyQZGCUrhlnPnoFSL9goO0HuXZemUeKra64V1g7ODxjWVl4sRYt2OTw
Ya7Y3mV8kUfZDU0PEEgqaoM7NLRTutRUbeOIjO0Tsbqgs/K8Iiv5MIDWYGOJ2NrL
AwIDAQAB
-----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 317830402710699231778441803994009544177128
 . . . . . . . . [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 2023-08-08 13:05:59 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-06 13:05:58 +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 24068213956912277519440064520948228467245223146847359197158191794329146743059193972919088867575738336546781880621271280242075377151164005977862341383061632664750266773714980480661286786722066703062232486829673900215374323472040023209554000189950166110602875658261104427760076669648948424384973051582181049572938462950806141353560501212541603434654791132210085013963362886299192053996937545351388150021846514036641593477177695554875464245520290370639446523344762399139732902292642484747988543811293494708079946696904927672673903949057506675560774668002759207714888440695442895422336851946206269535492146662947765799683
 . . . . . . . . . . . . . . . . . . . . [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)
							c549a3e27b5e155480340ad6c997f1b01b6d1010
 . . . . . . . . . . . . . . . . [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)
							00ef0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000189d57804d600000403004730450220350f5d4e1b6fe5b040a74d33e7f6600cff200d172e36171bb213e3e2b13348bb022100f4f9e0fbd5ea266e24bb5089e86e68f4826d24d7690a3cd651206ce26ea2ce6f007500e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e00000189d57804b80000040300463044022076a7a51c7ce809684dfc3a89304bce75585bbfe72472430c946d7ecb8971ab8502207b8b0526617304e7ee3d6f43132df25ebd16c22844a4edaae5d9d6d98ef589da
 . . . . [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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