learn.racc.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:9a:41:38:5e:d4:e4:b1:90:e7:7f:5a:d4:16:bd:be:8f:3f 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=learn.racc.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:9a:41:38:5e:d4:e4:b1:90:e7:7f:5a:d4:16:bd:be:8f:3fSerial Number (int): 400939320744629257884622778901882399002431
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 23:1b:cd:ec:e7:97:68:6e:8e:32:4f:b0:23:66:4b:32:23:57:56:e0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 83:5a:10:16:af:0b:51:65:d2:bb:1d:1a:2a:7d:5f:fb:bb:fe:8f:64
Fingerprint (sha256): 09:57:d5:63:de:f6:64:a8:92:d8:58:2a:f6:1c:fd:32:81:f5:41:dd:28:f0:5c:14:a3:77:d1:0a:76:51:5d:70
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate learn.racc.ac.uk
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for learn.racc.ac.uk
Public Key Algorithm
RSA
Key Size
4096
Signature Algorithm
SHA256 with RSA
Key Usage
Digital Signature
Key Encipherment
Extended Key Usages
Server Authentication
Client Authentication
Extensions
8 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
learn.racc.ac.uk
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Certificate
The complete raw certificate details for learn.racc.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGAzCCBOugAwIBAgISBJpBOF7U5LGQ539a1Ba9vo8/MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODAyMDgwNzM2MzFaFw0x ODA1MDkwNzM2MzFaMBsxGTAXBgNVBAMTEGxlYXJuLnJhY2MuYWMudWswggIiMA0G CSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDLnVqJZzIjEj1JJbH1V02MHQ6F7YfP dz2ZL768OgJNN7dziv2NsQReMjFnufyL1UXtDlcj5LfQehIl7fJNkqz33DgAFCEY 7SeQkpoHK1i632UCSeuH+bW9mICFGXTVTXmfLoONmEpVNaaVxb7GT16WcEQskQ+d DhOTpEwFWxwAgseRPwcVkkarv/9a9ZVSts2qLfbm8TTTA9MNERc61VzjFeS4gnIz qnr6wDXdgbPGENZg4/GjKWGu/hDV7PFegNixdXW/AeyIgRkJ77awqDgZtgaTQed/ 8KDpBrdO3j5Sk1iWZxiqLC2pvNA0xrV2xQ6Tv5rOV4/MDzzP+XgNaeDs8gmzCZSL b6xxKOV6wioH1K+drxSFbFl8JzYNySPK7BW20Rx/QhDs6YbQqjQs8A0KlvLv40hr n7lhEL9S5HeOIHD8gSJLc/ODTjEMQczd2moox4K//Ec7OeNWm+5r0mlt9CW5ST3d oKkD/4t3iv4gQJ8qfIWW/eN3NZ2YA+Y0mBRZFGvhgC7B2FGUx8YZv5xCeOhBQXNN wFP2yL2yhkhcxxrJx47EeqIXxf+2rE+jU49nDQUiZ5I1HqsgiAQYDNWZwCKdIahx q+hitKoq0keyGMJ2b/PpLlpiEjqDkf5imycy0Cjt/VQpUsUeWeGRa6Ebeq+ZM+X2 s21RTV7MqSy4DwIDAQABo4ICEDCCAgwwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW MBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQj G83s55dobo4yT7AjZksyI1dW4DAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv 86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmlu dC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0Lmlu dC14My5sZXRzZW5jcnlwdC5vcmcvMBsGA1UdEQQUMBKCEGxlYXJuLnJhY2MuYWMu dWswgf4GA1UdIASB9jCB8zAIBgZngQwBAgEwgeYGCysGAQQBgt8TAQEBMIHWMCYG CCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCBqwYIKwYBBQUH AgIwgZ4MgZtUaGlzIENlcnRpZmljYXRlIG1heSBvbmx5IGJlIHJlbGllZCB1cG9u IGJ5IFJlbHlpbmcgUGFydGllcyBhbmQgb25seSBpbiBhY2NvcmRhbmNlIHdpdGgg dGhlIENlcnRpZmljYXRlIFBvbGljeSBmb3VuZCBhdCBodHRwczovL2xldHNlbmNy eXB0Lm9yZy9yZXBvc2l0b3J5LzANBgkqhkiG9w0BAQsFAAOCAQEAJgjk2OK04AYm yH3VesdZMjh87SsqnQjPh6THFR8JI8GrTJg680dUGXis651Agw96BhlBksTI+PEn TWogiozU/5JR8AtXCK2/CZ9IfI1DQ+JbJBkIMdqZmrNeJWboPoxYV8s1IeqZtEAQ 7T63FS94YxIcifXYsGjO7ZYaLxpr0OkXRRyqPfQoGcS9OnKCVPipP7ZAxSuEeR75 +ePvfGJq1BDHvQlGH5gck4AJ8eHe9y5UsY11AwTEJ6miKQjh0KNFzsVUM6bmhhrd 6IckqTIc1/8m07vsdf4pkTKgWkWAwpZfdNVKI0PtU9tDo4g0DPW10yAsO09t1fUr yvGRFpZxrA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAy51aiWcyIxI9SSWx9VdN jB0Ohe2Hz3c9mS++vDoCTTe3c4r9jbEEXjIxZ7n8i9VF7Q5XI+S30HoSJe3yTZKs 99w4ABQhGO0nkJKaBytYut9lAknrh/m1vZiAhRl01U15ny6DjZhKVTWmlcW+xk9e lnBELJEPnQ4Tk6RMBVscAILHkT8HFZJGq7//WvWVUrbNqi325vE00wPTDREXOtVc 4xXkuIJyM6p6+sA13YGzxhDWYOPxoylhrv4Q1ezxXoDYsXV1vwHsiIEZCe+2sKg4 GbYGk0Hnf/Cg6Qa3Tt4+UpNYlmcYqiwtqbzQNMa1dsUOk7+azlePzA88z/l4DWng 7PIJswmUi2+scSjlesIqB9Svna8UhWxZfCc2DckjyuwVttEcf0IQ7OmG0Ko0LPAN Cpby7+NIa5+5YRC/UuR3jiBw/IEiS3Pzg04xDEHM3dpqKMeCv/xHOznjVpvua9Jp bfQluUk93aCpA/+Ld4r+IECfKnyFlv3jdzWdmAPmNJgUWRRr4YAuwdhRlMfGGb+c QnjoQUFzTcBT9si9soZIXMcayceOxHqiF8X/tqxPo1OPZw0FImeSNR6rIIgEGAzV mcAinSGocavoYrSqKtJHshjCdm/z6S5aYhI6g5H+YpsnMtAo7f1UKVLFHlnhkWuh G3qvmTPl9rNtUU1ezKksuA8CAwEAAQ== -----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 400939320744629257884622778901882399002431 . . . . . . . . [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 2018-02-08 07:36:31 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-05-09 07:36:31 +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 'learn.racc.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 830675350971949809450515966708992155573534825854934602738218285494940783672653821304189001317808782645335556332721380800091951947419927357472708741065068255813371158849708427103797929910796312262030604902588511714401248959067465601754539774342036482785068299293571760354123969268070314679755503563341824048849912238852551707808320168769337834971296470312918305047193318278081482353857333101301713832502809988768190675158762449888540037347501859496835598056185874465704339307937834161349746025711759385140570400068649517176295834084077892729424531901111557256547380904507869044695908109024394270806456654266218686800317694265769823308445094935723991108649500671265771525990883614686217678987701129214782233613093103529981311305986604526127100961238216882067980011244666787055725577463701230175070692843464689480516177874389904487484385086446475150983410068236096783197868317485020001662625033169484861940822117198706405034477026132359581228191907371242914978611091295117628053291768311752759407060813293705377339319671820731362543238060858625491009797985004327321296419595360739989476769206608125823978891148700518926207596591946181565164378052058445334227723493578113171946873196404523829482437115591423836604577732256199111430944783 . . . . . . . . . . . . . . . . . . . . [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) 231bcdece797686e8e324fb023664b32235756e0 . . . . . . . . . . . . . . . . [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 (20 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'learn.racc.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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