uptime.lutonsfc.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:15:4d:61:28:4e:72:69:90:68:3e:8b:06:3a:ae:23:06:ee was issued on by Let's Encrypt.
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=uptime.lutonsfc.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:15:4d:61:28:4e:72:69:90:68:3e:8b:06:3a:ae:23:06:eeSerial Number (int): 355697928458363000452173895151663668463342
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 23:10:08:25:47:b8:a1:5b:08:ac:a7:2d:33:9e:df:f7:e7:12:e8:67
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): fb:e4:15:9f:a9:9d:4f:dc:be:09:3e:ab:d1:4a:48:f2:ea:e5:4c:50
Fingerprint (sha256): 1f:c9:6f:88:16:fe:8e:14:60:6a:13:32:f3:47:33:fc:a0:40:5d:e5:2c:58:0e:21:2d:96:ec:95:3e:39:6c:7d
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate uptime.lutonsfc.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for uptime.lutonsfc.ac.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
uptime.lutonsfc.ac.uk
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Certificate
The complete raw certificate details for uptime.lutonsfc.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFYzCCBEugAwIBAgISBBVNYShOcmmQaD6LBjquIwbuMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMDYwNzA3NTFaFw0y MDAxMDQwNzA3NTFaMCAxHjAcBgNVBAMTFXVwdGltZS5sdXRvbnNmYy5hYy51azCC ASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMqcx8U0gBDMeWmMxlHjoo0D dzNFyJEe8CyQwq5HZuzD8oetmVVThsDI0LssYBq4VM7eFfrSBUTTa2H6zyMjgUdf x7tcish15omFM8oQwq5gqgAFijCmksCj01rPCpesjo5SODkRd5/7P9TLUnToao7m /XGGJJkvNzgxvp5wLa9A76cTe82KhMANpWuiuHYyZbtQ1w2bIHAVBWXj9V5LK3IZ w94YuLFsNJCSd1bliehfIi+dd/m7sAen7qRn381quLZmECOsjTXZOts+bBObP5v0 yjf0FaeSbVmycqMUxgjDcEBtLTbhYb4XuTuOo7dXsd2l7kreMkHuSRjhhgDug38C AwEAAaOCAmswggJnMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcD AQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUIxAIJUe4oVsIrKct M57f9+cS6GcwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYB BQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2Vu Y3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2Vu Y3J5cHQub3JnLzAgBgNVHREEGTAXghV1cHRpbWUubHV0b25zZmMuYWMudWswTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEFBgorBgEEAdZ5AgQCBIH2BIHz APEAdgBvU3asMfAxGdiZAKRRFf93FRwR2QLBACkGjbIImjfZEwAAAW2gHEtbAAAE AwBHMEUCID+YszGDHbmYWTnc3CUjZ1S0qJkJBbqsibvWL5p8r1uZAiEAuphxKNcP FM6Hq9pNxF68cKx5o3rNYw4QYj3Dw6etN/UAdwCyHgXMi6LNiiBOh2b5K7mKJSBn a9r6cOeySVMt74uQXgAAAW2gHEt0AAAEAwBIMEYCIQDkrdG9srawTjzVzex7vz5O j0ddFeeAY+cSnx5usmOvuwIhAJ5w3rfkH2Y1m+k0cdqZwpOO3z/k/AZXjcc+PeUU PkeMMA0GCSqGSIb3DQEBCwUAA4IBAQAdXBIggHBAJaHu1eZpCmDBWVtFXGT82CLS SLlCrpLd4ZoDYN9owfx/+2Ha8WbTv8ku2dQ7G3ixGLgUQ1CVvh4/Zvh8r33lyQZD bqG+1axcepkpwaYv7Uakhg8Gt5u+6WPSJYQhyBWdeKpi7jMkdaMy6mwlZSuz/0Yw FmrB41DO4KvoHbbJfFXZi6MvQMJtMDXCRrG0SDzNWf655QCwoxMvKuj5NyJLosda sPF2P8AQAuCYilLzXi9gxD2w2GTrT3lryqbWHhJkrfG7gS4xiUkiiKxmYeD+gIKK jUNVOe3qDfoswbDclWPj3g8C/jd3H7JJ+9zyYD32xv8uroVyHzrs -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAypzHxTSAEMx5aYzGUeOi jQN3M0XIkR7wLJDCrkdm7MPyh62ZVVOGwMjQuyxgGrhUzt4V+tIFRNNrYfrPIyOB R1/Hu1yKyHXmiYUzyhDCrmCqAAWKMKaSwKPTWs8Kl6yOjlI4ORF3n/s/1MtSdOhq jub9cYYkmS83ODG+nnAtr0DvpxN7zYqEwA2la6K4djJlu1DXDZsgcBUFZeP1Xksr chnD3hi4sWw0kJJ3VuWJ6F8iL513+buwB6fupGffzWq4tmYQI6yNNdk62z5sE5s/ m/TKN/QVp5JtWbJyoxTGCMNwQG0tNuFhvhe5O46jt1ex3aXuSt4yQe5JGOGGAO6D fwIDAQAB -----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 355697928458363000452173895151663668463342 . . . . . . . . [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 2019-10-06 07:07:51 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-04 07:07:51 +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 'uptime.lutonsfc.ac.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 25577448876570075638186708481625919987230170395356240200246796923333066491384074261282324148947612751262999020727903624901534272452809264274038259700702501575399715731934101236271898136773404479921669014203249606700708149576492746701494110712737745404360767046989444137627591074039323442566103636657407604845176669772281998558511798537001151758065809792319401367428479478241514119509077677875934326364744262566908639658010445832964972764897130745933278591084514399952096525498639583697276175371769931595075654095386108892179370813051969153951808515466091621372871699282688406110240780635313752132709886957249417347967 . . . . . . . . . . . . . . . . . . . . [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) 2310082547b8a15b08aca72d339edff7e712e867 . . . . . . . . . . . . . . . . [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 (25 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'uptime.lutonsfc.ac.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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016da01c4b5b000004030047304502203f98b331831db9985939dcdc25236754b4a8990905baac89bbd62f9a7caf5b99022100ba987128d70f14ce87abda4dc45ebc70ac79a37acd630e10623dc3c3a7ad37f5007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016da01c4b740000040300483046022100e4add1bdb2b6b04e3cd5cdec7bbf3e4e8f475d15e78063e7129f1e6eb263afbb0221009e70deb7e41f66359be93471da99c2938edf3fe4fc06578dc73e3de5143e478c . . . . [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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