arm.ecs.soton.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:d6:41:f9:ff:b7:0f:de:df:d9:45:42:8d:66:16:62:c1:21 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=arm.ecs.soton.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:d6:41:f9:ff:b7:0f:de:df:d9:45:42:8d:66:16:62:c1:21Serial Number (int): 334244982204523480209913382411108396220705
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 58:22:03:97:32:52:42:64:2f:14:aa:9f:f7:ba:5e:03:e3:cf:cc:b5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 9f:51:91:09:32:ba:ea:d0:30:18:e9:95:57:4c:03:90:d5:64:66:a8
Fingerprint (sha256): 0b:9c:c0:a9:3f:95:3f:ac:68:60:f5:7e:f6:1d:08:34:64:d2:85:c8:da:f6:73:2e:5e:ae:72:93:3e:cc:24:8c
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate arm.ecs.soton.ac.uk
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for arm.ecs.soton.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
9 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
arm.ecs.soton.ac.uk
www.arm.ecs.soton.ac.uk
www.arm.ecs.soton.ac.uk
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Certificate
The complete raw certificate details for arm.ecs.soton.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGdjCCBV6gAwIBAgISA9ZB+f+3D97f2UVCjWYWYsEhMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xODEyMzAwMjAwMTZaFw0x OTAzMzAwMjAwMTZaMB4xHDAaBgNVBAMTE2FybS5lY3Muc290b24uYWMudWswggIi MA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDTaJDBHxJP/9YXgJoYvnHmBeeJ YBD8hIGe11qJiX7CnLmwQBHK0OWzMIJs8dSKL+a+Xi0P33q5NVa9RM2HuRszXNvl WX4CNmOWzsPLLaqmPxs4TX4+MbmcEWr8/vNYhSWdl8BccV871qTi1YZNlWVArNHN XsZK5WA7zo17fEP003/M5ZjndYotof8gRrj/z1AmR9FeB1bu+eSrF80eQnm9fn8W +9X3SAsGKQOngTEUzALhJWeVgeRZlAWvMbjuQ5PJBipWzza5RG5gNiazXr5uBwUa OpTBCj1QcKizS9cde5UQOsgij/5oPR5CPxx/PiswfvjQc8eX6m07wWujhae5w67P p9UA4iJTv+b5ldZD6H5P+8xPj+x92vgHcTKXT9LMYKrSgykd4OY/PvlZVZoRPXSl SgxYe5Cr+YEP7yjOriinbExVTE/IMfPQzbxQHWQrx83rC41od9sSf4b1QMGDVahs I2cwGaZb/mt9ua2vsP0s7F+8tCjRgCQccYnRoZGysQ1V0bs4zXyMTSJ91zpw1DiD +P/u7goRTiCUUq4s1ysn+BhWvbrUwhqbB9h3qFMPzYWLRHLpmw9UfH4mb1MMagON EURbTOMGVojJWiUahCurcLVXdAfLPUVgGDXdKDyWJREiSlLfT6JyfH4/E/VdsgXs QcLIzypkDTL1gUeZLwIDAQABo4ICgDCCAnwwDgYDVR0PAQH/BAQDAgWgMB0GA1Ud JQQWMBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQW BBRYIgOXMlJCZC8Uqp/3ul4D48/MtTAfBgNVHSMEGDAWgBSoSmpjBH3duubRObem RWXv86jsoTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3Nw LmludC14My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0 LmludC14My5sZXRzZW5jcnlwdC5vcmcvMDcGA1UdEQQwMC6CE2FybS5lY3Muc290 b24uYWMudWuCF3d3dy5hcm0uZWNzLnNvdG9uLmFjLnVrMEwGA1UdIARFMEMwCAYG Z4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMu bGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHUA4mlLribo 6UAJ6IYbtjuD1D7n/nSI+6SPKJMBnd3x2/4AAAFn/Q4QGgAABAMARjBEAiAbmnr1 Masj/FR9J9+cImup+LR4BkbSncZQn5VBMQgltwIgSgkBxUBlrPQbgBcO7b7xlcw9 X3yCubYjrSmVlzZz7MsAdgApPFGWVMg5ZbqqUPxYB9S3b79Yeily3KTDDPTlRUf0 eAAAAWf9DhBnAAAEAwBHMEUCIQDmoEExb7TDML19mVfRhx7IXtY3YMofODqoZHPh 3tcb0AIgOTufie3B2DZAYafLWg47M3HvmKZxPRwO7sWyno0q4EAwDQYJKoZIhvcN AQELBQADggEBABsst5Dz6RmyhApWFlnnEC+nzWDp00f/IyOz/rDjbCq7JHm9uUz0 kkrf3btvl8yjKUOg1OILZe40/8419/Ik+p/EY/pFpA0L8pd5J3D4ZMXUgHYhAg/6 /Rv1As3gg6dqmnSll3zZnvKBi2KfI/MMO9gSm4RfAmeJ6m0q7EujsFwtIampiTms IP5S2WsbtAgWM/Z6Qp4Mgc9mRz04evzm0JFBOUdPFUjCdCKuMriIslKqy0IdkEr/ wyWwrRYNk9ZVH3tGgHsKeCGVEbBepXIOofq7KDnNZh9CArOvRc85r6Cp3h4E29eE 1Qk4e7gXh5eIrl6mB+utbZ/7VYZf6b9P9K8= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA02iQwR8ST//WF4CaGL5x 5gXniWAQ/ISBntdaiYl+wpy5sEARytDlszCCbPHUii/mvl4tD996uTVWvUTNh7kb M1zb5Vl+AjZjls7Dyy2qpj8bOE1+PjG5nBFq/P7zWIUlnZfAXHFfO9ak4tWGTZVl QKzRzV7GSuVgO86Ne3xD9NN/zOWY53WKLaH/IEa4/89QJkfRXgdW7vnkqxfNHkJ5 vX5/FvvV90gLBikDp4ExFMwC4SVnlYHkWZQFrzG47kOTyQYqVs82uURuYDYms16+ bgcFGjqUwQo9UHCos0vXHXuVEDrIIo/+aD0eQj8cfz4rMH740HPHl+ptO8Fro4Wn ucOuz6fVAOIiU7/m+ZXWQ+h+T/vMT4/sfdr4B3Eyl0/SzGCq0oMpHeDmPz75WVWa ET10pUoMWHuQq/mBD+8ozq4op2xMVUxPyDHz0M28UB1kK8fN6wuNaHfbEn+G9UDB g1WobCNnMBmmW/5rfbmtr7D9LOxfvLQo0YAkHHGJ0aGRsrENVdG7OM18jE0ifdc6 cNQ4g/j/7u4KEU4glFKuLNcrJ/gYVr261MIamwfYd6hTD82Fi0Ry6ZsPVHx+Jm9T DGoDjRFEW0zjBlaIyVolGoQrq3C1V3QHyz1FYBg13Sg8liURIkpS30+icnx+PxP1 XbIF7EHCyM8qZA0y9YFHmS8CAwEAAQ== -----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 334244982204523480209913382411108396220705 . . . . . . . . [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 2018-12-30 02:00:16 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-03-30 02:00:16 +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 'arm.ecs.soton.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 862471264777053611220842416500813342119387222080279055098033978099460673622297831277043472896849099477728011111030611537752999819768580856463670765209224988205173679337289163486849604006209313460761363037992435268557189037886389939739897149409340853833347669813917863378340919432282058125987725747375536130118145558483194238068772010275038643606744535000712898644693619022508016476385579054778879586947858763458932538361687476393904108058873849472415570886726687677543523430688685300371231136744149186696622384003369441942434073684930621617050325620081305897591309923072123972419644754791193020739414868086780483617730910134771127954032160943329347648405917187967343517337326267554247844419248298493611447044122990273768566267674346060604016951056232127342322012931111918041413053484511364138700496719496007168233029354004429277464394269307582292254890680942961753936498965557965794981202911232748979593599426146949774556619715970221329260523715113493438620130378191525307584538631263883932415589773036162402752668303828142327167707447567997391344762732332622506644705156590744540748193867677943035906339273639069234573751713736243102775176825462406091067455035026869615487774407641921734639077310145832493628817720167426069377816879 . . . . . . . . . . . . . . . . . . . . [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) 58220397325242642f14aa9ff7ba5e03e3cfccb5 . . . . . . . . . . . . . . . . [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 (48 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'arm.ecs.soton.ac.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.arm.ecs.soton.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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000167fd0e101a000004030046304402201b9a7af531ab23fc547d27df9c226ba9f8b4780646d29dc6509f9541310825b702204a0901c54065acf41b80170eedbef195cc3d5f7c82b9b623ad2995973673eccb007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000167fd0e10670000040300473045022100e6a041316fb4c330bd7d9957d1871ec85ed63760ca1f383aa86473e1ded71bd00220393b9f89edc1d8364061a7cb5a0e3b3371ef98a6713d1c0eeec5b29e8d2ae040 . . . . [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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