coursecast.soton.ac.uk
Issued by R3
About this certificate
This digital certificate with serial number 03:12:07:e0:24:19:15:7c:51:68:7a:43:ec:ec:1b:2c:66:3b 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=coursecast.soton.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:12:07:e0:24:19:15:7c:51:68:7a:43:ec:ec:1b:2c:66:3bSerial Number (int): 267472408802478537765475139726271985772091
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 32:e0:29:31:22:49:9c:ff:92:0b:14:5f:8a:3d:2c:a9:3c:92:b8:58
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): d9:9a:4c:b4:ad:00:bc:82:fe:c4:38:62:7a:07:35:d5:27:db:e8:14
Fingerprint (sha256): 04:a7:8f:31:38:6a:bd:82:ff:a8:e7:02:af:7d:fe:dc:09:21:1f:7a:a3:c8:5b:2f:66:17:7e:ce:94:58:28:28
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate coursecast.soton.ac.uk
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for coursecast.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
coursecast.soton.ac.uk
www.coursecast.soton.ac.uk
www.coursecast.soton.ac.uk
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Certificate
The complete raw certificate details for coursecast.soton.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGFjCCBP6gAwIBAgISAxIH4CQZFXxRaHpD7OwbLGY7MA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzEwMDEwNDQ2MDZaFw0yMzEyMzAwNDQ2MDVaMCExHzAdBgNVBAMT FmNvdXJzZWNhc3Quc290b24uYWMudWswggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAw ggIKAoICAQDI/P1stinIf7YmXtvW06BaYh6clM9fKQTxYP2OKk54+AYSM3LGLveq mmuWt5ZxdL8fU6+3nDIpgJAe5uGkeEFJkOA2/VDJle19R3FPKJaxu5U5rP6usFZf xZv3RqQltQecD8ym6QQna+AaEXvqpTlAGQMmcw4tzelMb6MVSCKCyADm1RISHpOn RiFI6l+uZ3eqPLoiNt9urhpqP3xT4v3RnOODR2NQ3DoqBcU3DjxuIYpWnvC3GDid J2zCyJzJe9XUTCyFlSRS6KSEbGLxkVAWG5T2yTvyRlge+hDYoQ5zVNjX4N38Knil AmbNwUzwfxlmYepZ+f7HXZkTwnp/nHq16+OyPPQZmYAR2Fl9qsuHN/nvxc4HO0Wc LlDTxqh2P++i+6EPR0QZD6eYcahrpiPceH9AJ5gZshjY4t7tpUEuwX2+wHJPdsQL EgAbby4G1uJ7deVOOm8k7eqN+vxT24qKc6EGbCsgOkMGsg7yV6cE+Q8VDUWr8MF9 YZ8lA/EIz7sW1AVk3kAyT19FvnW53tpIFer+NL+ftOg7LzoFO1OqJj0YKUVi5r1A ontcHcLphhPXXKqtD3MayMWkBPS+3DIWsKt0nv7tXJhA6Vyefw8NR5J5Nf6N+ljb Hhc1yM8VgPHA5gUEHq6qfXNUvocf9JJZ2oogKIxR7Z+JDkJLgqMVFQIDAQABo4IC NTCCAjEwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEF BQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQy4CkxIkmc/5ILFF+KPSypPJK4 WDAfBgNVHSMEGDAWgBQULrMXt1hWy65QCUDmH6+dixTCxjBVBggrBgEFBQcBAQRJ MEcwIQYIKwYBBQUHMAGGFWh0dHA6Ly9yMy5vLmxlbmNyLm9yZzAiBggrBgEFBQcw AoYWaHR0cDovL3IzLmkubGVuY3Iub3JnLzA9BgNVHREENjA0ghZjb3Vyc2VjYXN0 LnNvdG9uLmFjLnVrghp3d3cuY291cnNlY2FzdC5zb3Rvbi5hYy51azATBgNVHSAE DDAKMAgGBmeBDAECATCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB3AHoyjFTYty22 IOo44FIe6YQWcDIThU070ivBOlejUutSAAABiunFw2oAAAQDAEgwRgIhAI9IaGrQ rMq0peG6aZOkOiywyNsxmwGeAjo0BFykouVwAiEAo8A1P+zJi1748AyGX9haLdq7 XqX1qKQGHztt4dzrI/oAdgC3Pvsk35xNunXyOcW6WPRsXfxCz3qfNcSeHQmBJe20 mQAAAYrpxcNqAAAEAwBHMEUCIQCuUmH7pt7E1jYzvbIB643T8YbO3IZ4a5fsqzzh SBfTrQIgSAclozoIR74qRdfGgslMOHFqqU0/7MgYC6nCkf0/bZwwDQYJKoZIhvcN AQELBQADggEBAFBDMpDm4idVhVdufeIsJvNNHKYUNyt1qmRytOh8TPYipAqJlL4+ 7ve34zKHeqScwr/S3OuqBK2jlvf+OCSSvisQdL2EINrx/ag3WLmYlx+qTOZDGJT8 RgPbBO6Xy71AbS/WCwBcWGLMRzgSXCwhGgjwjnY7TWyOFf6e3yIOTQPTEAR0OMEJ 3+NUoMlCx1hbjTDF3wkmkQ7GovaNFC14eQ5mYbtgdJ7am2qcB+TFRUFwvlgJX5Gy mUuSwmpaRuKDmg2IRPCPbqn+nG9Tp9WGv4FVYuwgb2OV6o5AwChM9q+Ed24YQxVy ckPYNx7Cqhq7s2VxqoWhDpZusE6PcDq+BRo= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAyPz9bLYpyH+2Jl7b1tOg WmIenJTPXykE8WD9jipOePgGEjNyxi73qpprlreWcXS/H1Ovt5wyKYCQHubhpHhB SZDgNv1QyZXtfUdxTyiWsbuVOaz+rrBWX8Wb90akJbUHnA/MpukEJ2vgGhF76qU5 QBkDJnMOLc3pTG+jFUgigsgA5tUSEh6Tp0YhSOpfrmd3qjy6Ijbfbq4aaj98U+L9 0Zzjg0djUNw6KgXFNw48biGKVp7wtxg4nSdswsicyXvV1EwshZUkUuikhGxi8ZFQ FhuU9sk78kZYHvoQ2KEOc1TY1+Dd/Cp4pQJmzcFM8H8ZZmHqWfn+x12ZE8J6f5x6 tevjsjz0GZmAEdhZfarLhzf578XOBztFnC5Q08aodj/vovuhD0dEGQ+nmHGoa6Yj 3Hh/QCeYGbIY2OLe7aVBLsF9vsByT3bECxIAG28uBtbie3XlTjpvJO3qjfr8U9uK inOhBmwrIDpDBrIO8lenBPkPFQ1Fq/DBfWGfJQPxCM+7FtQFZN5AMk9fRb51ud7a SBXq/jS/n7ToOy86BTtTqiY9GClFYua9QKJ7XB3C6YYT11yqrQ9zGsjFpAT0vtwy FrCrdJ7+7VyYQOlcnn8PDUeSeTX+jfpY2x4XNcjPFYDxwOYFBB6uqn1zVL6HH/SS WdqKICiMUe2fiQ5CS4KjFRUCAwEAAQ== -----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 267472408802478537765475139726271985772091 . . . . . . . . [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 2023-10-01 04:46:06 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-30 04:46:05 +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 'coursecast.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 819960489026768665349686103134249666411555181917720346516099812297892862955379212398369728538201990839018369809577050129176498446407818173111745962998258901081655452809351432968199009895376585473388439847781048093823013651305242515616315022448093314558988442354484364744840797977887315042363783538176811998683068010615701641383683826727364773810157856463174741272888693601262094138403298612141205913049661390491704950456121202496188338892199042019349285300343707064677990572405451402508368468191332035639983080121546229045467553870420099147734829505802016666477803985077442622542899330744558456352300262842273158823297267014377143711929880629727471726052728423548488521189996655197193613627052777990349697311552811715543752196835575934720586905758391427066907302149957891614441012728226188950838057009259748075858698663063962468586783209026824406332767542273162578235435222601916025907083592521699973880874009307516182878483136697613914479842626983763927870793622068046780168554767227737783232909205384968820363243189489346896584099988919971424681285229178660754548056141102475872905446752412473929970666114216202547011205309066791275808756447843436715069219139842084509608691621459677233860233500815613172146787888176984953029072149 . . . . . . . . . . . . . . . . . . . . [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) 32e0293122499cff920b145f8a3d2ca93c92b858 . . . . . . . . . . . . . . . . [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 (54 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'coursecast.soton.ac.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.coursecast.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 (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 (246 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) 00f10077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ae9c5c36a00000403004830460221008f48686ad0accab4a5e1ba6993a43a2cb0c8db319b019e023a34045ca4a2e570022100a3c0353fecc98b5ef8f00c865fd85a2ddabb5ea5f5a8a4061f3b6de1dceb23fa007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018ae9c5c36a0000040300473045022100ae5261fba6dec4d63633bdb201eb8dd3f186cedc86786b97ecab3ce14817d3ad0220480725a33a0847be2a45d7c682c94c38716aa94d3fecc8180ba9c291fd3f6d9c . . . . [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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