www.sjc.ox.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:62:b6:7e:0a:80:c8:43:66:9a:ca:3a:22:a0:4f:28:a4:08 was issued on by Let's Encrypt.
With 5 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=www.sjc.ox.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:62:b6:7e:0a:80:c8:43:66:9a:ca:3a:22:a0:4f:28:a4:08Serial Number (int): 294927103691197018759305572246436887176200
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: b4:24:c6:f8:c5:e6:d3:35:77:c7:44:c7:e9:49:45:b5:a0:58:c1:53
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): bc:d5:a8:74:50:13:be:8f:f7:6e:b3:5a:5a:2d:12:e2:f0:c4:1f:ef
Fingerprint (sha256): 9f:63:e5:2d:45:13:de:11:f6:ca:53:61:6a:54:da:45:82:83:db:57:91:a8:f3:72:d8:84:ba:40:72:3f:92:46
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.org/Check the revocation status for certificate www.sjc.ox.ac.uk
5
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.sjc.ox.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
www.sjc.ox.ac.uk
www.st-johns-oxford.college
www.st-johns.college
www.stjohns.college
www.stjohnsoxford.college
www.st-johns-oxford.college
www.st-johns.college
www.stjohns.college
www.stjohnsoxford.college
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Certificate
The complete raw certificate details for www.sjc.ox.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGZzCCBU+gAwIBAgISA2K2fgqAyENmmso6IqBPKKQIMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNzA1MjQwNDQ1MDBaFw0x NzA4MjIwNDQ1MDBaMBsxGTAXBgNVBAMTEHd3dy5zamMub3guYWMudWswggIiMA0G CSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQC6/JMH0tFBF86RQx18FZplOjXoX6i3 /gltJaw4bQ5avdonuYXVtq+jmG0EcLmy6i40Hzz7JdbUXcjLTV8rjo6ehBkJYr4T xl5a3ppekDd2Y0ciqadRZtO1KAbrh0hArePS4GZc+50VJq0wnKr4TNC4rvfUjkRg sOBMN52nV4jG3UNaNokiiAcpAwFoBkDYhN0SUFS0nyVR5Zi8mrG9SM6F3M+QhBCM pdYfKjnDWY+XYVz/vTJYG9p7wBd9FCv1mpdjlfd8bW5OM2P8YhKQYI/NbZGzpurv qfJIULUAFXMRwwj8F3Mgi4+t5vznF2r9UU7LV0DsPzbrBUfueyHkO+QHJkqLOk+6 GZvidVCHidHopXgGjfRdN7bPFvBK/gQLDPQ+iZwO4Exb/OBLSwep+dXzOOLh7s2b J90jrkK8PtoE2D9cu05ngkpiinGclV5y8G81jEEDXxjcFFct/4CBGb96sTbrXQp+ QsiK80Ze2sibtaMAxVNEM6KcMovVKiVJfSqjdfcJHnZMPoiAHGAAQhVOhOFjo0yl QxcCAvmjCTlmaPH5cgboAsCdlDHZR8srRZyXTORjq6y5HwQEle+eLfAPpwWj4dV6 Cctm8I5RVg6a4CJqXQKMOQ/AEsyaIrDffFb9Kd/ODNCDE7CQ/LQWUbTMbfi3SrOj v9vit2QwHf+RgwIDAQABo4ICdDCCAnAwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQW MBQGCCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBS0 JMb4xebTNXfHRMfpSUW1oFjBUzAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv 86jsoTBwBggrBgEFBQcBAQRkMGIwLwYIKwYBBQUHMAGGI2h0dHA6Ly9vY3NwLmlu dC14My5sZXRzZW5jcnlwdC5vcmcvMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5p bnQteDMubGV0c2VuY3J5cHQub3JnLzB+BgNVHREEdzB1ghB3d3cuc2pjLm94LmFj LnVrght3d3cuc3Qtam9obnMtb3hmb3JkLmNvbGxlZ2WCFHd3dy5zdC1qb2hucy5j b2xsZWdlghN3d3cuc3Rqb2hucy5jb2xsZWdlghl3d3cuc3Rqb2huc294Zm9yZC5j b2xsZWdlMIH+BgNVHSAEgfYwgfMwCAYGZ4EMAQIBMIHmBgsrBgEEAYLfEwEBATCB 1jAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwgasGCCsG AQUFBwICMIGeDIGbVGhpcyBDZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSByZWxpZWQg dXBvbiBieSBSZWx5aW5nIFBhcnRpZXMgYW5kIG9ubHkgaW4gYWNjb3JkYW5jZSB3 aXRoIHRoZSBDZXJ0aWZpY2F0ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6Ly9sZXRz ZW5jcnlwdC5vcmcvcmVwb3NpdG9yeS8wDQYJKoZIhvcNAQELBQADggEBAEAnIs8H Ah5QIaJcfoI5ZvkfQJfHARGCHwz4QaFfsctRjKV1L/7ktTILl1lKIqQugGOAwpO4 4u8FyN/NP8xbhAE+giM3SjwiAZPI05zu4pHecbbbtrqyttl/6UDLSdt+1i2JmlXB S9JEN2DeAsR3VOC3ogJz4WsqwFcIJgwx8YWorl5lxRV0UwutUApX7tV6djX+pAbk WABxotk66O5BO3ys5g3N5Ke4UgBufdPzb9CtAk5JQScGH05zzPibszzwxwKhsf7C f6Fp9EmaKnPkxtTtsBBoYLmlv68+UU/sO6ayK+uJXWgN5QvOMc1m3gXyqlhyWt7O nSDWC8alzFPS/wQ= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAuvyTB9LRQRfOkUMdfBWa ZTo16F+ot/4JbSWsOG0OWr3aJ7mF1bavo5htBHC5suouNB88+yXW1F3Iy01fK46O noQZCWK+E8ZeWt6aXpA3dmNHIqmnUWbTtSgG64dIQK3j0uBmXPudFSatMJyq+EzQ uK731I5EYLDgTDedp1eIxt1DWjaJIogHKQMBaAZA2ITdElBUtJ8lUeWYvJqxvUjO hdzPkIQQjKXWHyo5w1mPl2Fc/70yWBvae8AXfRQr9ZqXY5X3fG1uTjNj/GISkGCP zW2Rs6bq76nySFC1ABVzEcMI/BdzIIuPreb85xdq/VFOy1dA7D826wVH7nsh5Dvk ByZKizpPuhmb4nVQh4nR6KV4Bo30XTe2zxbwSv4ECwz0PomcDuBMW/zgS0sHqfnV 8zji4e7NmyfdI65CvD7aBNg/XLtOZ4JKYopxnJVecvBvNYxBA18Y3BRXLf+AgRm/ erE2610KfkLIivNGXtrIm7WjAMVTRDOinDKL1SolSX0qo3X3CR52TD6IgBxgAEIV ToThY6NMpUMXAgL5owk5Zmjx+XIG6ALAnZQx2UfLK0Wcl0zkY6usuR8EBJXvni3w D6cFo+HVegnLZvCOUVYOmuAial0CjDkPwBLMmiKw33xW/SnfzgzQgxOwkPy0FlG0 zG34t0qzo7/b4rdkMB3/kYMCAwEAAQ== -----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 294927103691197018759305572246436887176200 . . . . . . . . [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 2017-05-24 04:45:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-08-22 04:45:00 +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 'www.sjc.ox.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 762838848996567139311241930827182525945470267291152855326031025545057901600204277137420961990224341398548225972547353978112440736820426969239818515398294576850051838688020251761674716243894015024677598241845933714207470145604594489322002212991811807993938132448255240614577219713873650803108347604259719907020774384213522363630899120672323168242348095370539578207593548926242678081319101539598032280195330210702039722930116657787993122367718837162307878493980641961655407001533246764765741742687818744988414991458234615836151888141285131006494675943287589588288775799306199880861013520893149529896815240995203462782135221475337602599454672349764774370377923411804598867896363642015995169369452026117673904663494446499847912696344520261118676875842182736008024305044121209470505171155625290874972452017713756794268989527954631228748536850986606012690311098344656182364457299955990060103982755054976914144492342825406622177634290190988970394435576080968739150288356673553802602816902639450219259430750639550069535558435267659217698193231706711258094189578857532659087009944438396886540531955893021429798739160386846295312788431160362502724985632432347027590742325709258630348345165276588743580693171944447561765268087828523058104078723 . . . . . . . . . . . . . . . . . . . . [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) b424c6f8c5e6d33577c744c7e94945b5a058c153 . . . . . . . . . . . . . . . . [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 (100 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 (119 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.sjc.ox.ac.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.st-johns-oxford.college' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.st-johns.college' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.stjohns.college' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.stjohnsoxford.college' . . . . . . . . . . . . . . . . [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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