ucu.imperial.ac.uk
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:ef:d5:c6:5c:d0:e6:8e:3f:e3:01:c8:e8:98:03:ca:37:d5 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=ucu.imperial.ac.uk
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:ef:d5:c6:5c:d0:e6:8e:3f:e3:01:c8:e8:98:03:ca:37:d5Serial Number (int): 342948499009797704544759773425505948809173
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 21:86:f1:e7:cd:01:36:f9:41:c5:06:a1:49:9e:70:be:69:57:85:ef
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): d4:96:2b:57:53:18:fc:95:b6:a8:ab:cc:58:33:a5:1c:78:f5:55:ad
Fingerprint (sha256): 57:bc:55:64:cf:94:9b:68:94:ed:9a:d3:4f:c2:33:0c:11:7d:01:2c:33:7c:a4:08:b8:2c:70:22:a1:e4:2c:4c
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate ucu.imperial.ac.uk
5
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for ucu.imperial.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
cpanel.ucuimperial.web.ucu.org.uk
ucu.imperial.ac.uk
ucuimperial.web.ucu.org.uk
webmail.ucuimperial.web.ucu.org.uk
www.ucuimperial.web.ucu.org.uk
ucu.imperial.ac.uk
ucuimperial.web.ucu.org.uk
webmail.ucuimperial.web.ucu.org.uk
www.ucuimperial.web.ucu.org.uk
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Certificate
The complete raw certificate details for ucu.imperial.ac.uk in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF4TCCBMmgAwIBAgISA+/VxlzQ5o4/4wHI6JgDyjfVMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAxMTIyMjM3MjdaFw0x OTA0MTIyMjM3MjdaMB0xGzAZBgNVBAMTEnVjdS5pbXBlcmlhbC5hYy51azCCASIw DQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAMOuQQGp4D9Zf9G57jlKNSBSaXAu BdA3b/BT9Zk5zMV3E2YmS75QYXiL+uve2DTWARmfgtxSQKt3c7jGOjtA/rgnmMv3 Z+WKzE+SdM5KrcQgJN97xVwwxbFw2bkDaXwH+TjwlWUGMG7WJqT36in8huyLlGkV xa9mB5RU/XxeqfiNUeNjHtWgXu/GtJc8idI/ZIu6ZkaMetFuUv3nW2f4++8CZdse CdujU0dEOD4O4peiSXmWDp/2kUbNtcYt94dMDRT6XvcIQXEvvoM1NvdQuKpIoKMo w9XDeWPPD+0S6ifyXcwR98sKn6k5YBlw6x8/xNGAcbA59B2IIaiuwjWJf3kCAwEA AaOCAuwwggLoMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYI KwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUIYbx580BNvlBxQahSZ5w vmlXhe8wHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUH AQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5 cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5 cHQub3JnLzCBogYDVR0RBIGaMIGXgiFjcGFuZWwudWN1aW1wZXJpYWwud2ViLnVj dS5vcmcudWuCEnVjdS5pbXBlcmlhbC5hYy51a4IadWN1aW1wZXJpYWwud2ViLnVj dS5vcmcudWuCIndlYm1haWwudWN1aW1wZXJpYWwud2ViLnVjdS5vcmcudWuCHnd3 dy51Y3VpbXBlcmlhbC53ZWIudWN1Lm9yZy51azBMBgNVHSAERTBDMAgGBmeBDAEC ATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNl bmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1AHR+2oMxrTMQkSGc ziVPQnDCv/1eQiAIxjc1eeYQe8xWAAABaERta/YAAAQDAEYwRAIgZ99KEMSkESfs 1/qKuJESzyb7yT9tFJOB5w2W1y3nekQCIBnLSl0MRenTUjHwXnIdbi1nLJcKj28E h9iG37VPs0YWAHYAKTxRllTIOWW6qlD8WAfUt2+/WHopctykwwz05UVH9HgAAAFo RG1sGwAABAMARzBFAiEA+tZFUzTtROdkwhp5pNvqrNaG/hM0tmmrx2QVmLAG0qAC IFhJ4zNGHDzxrvtwFuLzLfN3Sn+s5nlsfdtGlHhOlAZrMA0GCSqGSIb3DQEBCwUA A4IBAQB+y+tyWQv+nus/51f/5UauCu5io09tuofLYBseGTEY+RCc0DdZsOLNfC9H tfggifXduJ/FebpEL+ZAyLfSht71eG8st7YlQ6SNxlz7ivy4XyzAn1dYRvPmAQEI vROOQMS3sFTd1jRUaU5DCxLeMqWQXn7NCoKQmAKusAtOzevhEcBQ8j4T5zh94Ya+ ZimXJ1QG0+4U+RKLBpMyUqzQlopdvO9BHP71SpBWvf1iapFfyiYbYm0Kv9VmYlNA bAbaBw+nI9VDDx8gNuAdBtexD0dlJu+u59Ne5sx4yNtE05Rzab0icvCnw4BPMFdk 7GUw+OLSLzgw+paoQMZjVlz/oshA -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw65BAangP1l/0bnuOUo1 IFJpcC4F0Ddv8FP1mTnMxXcTZiZLvlBheIv6697YNNYBGZ+C3FJAq3dzuMY6O0D+ uCeYy/dn5YrMT5J0zkqtxCAk33vFXDDFsXDZuQNpfAf5OPCVZQYwbtYmpPfqKfyG 7IuUaRXFr2YHlFT9fF6p+I1R42Me1aBe78a0lzyJ0j9ki7pmRox60W5S/edbZ/j7 7wJl2x4J26NTR0Q4Pg7il6JJeZYOn/aRRs21xi33h0wNFPpe9whBcS++gzU291C4 qkigoyjD1cN5Y88P7RLqJ/JdzBH3ywqfqTlgGXDrHz/E0YBxsDn0HYghqK7CNYl/ eQIDAQAB -----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 342948499009797704544759773425505948809173 . . . . . . . . [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 2019-01-12 22:37:27 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-04-12 22:37:27 +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 'ucu.imperial.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 24702397284643818317153950397641279038071171054669161462117854496006454315994948595081259302812039784068376855081957668362464829146246564825928364335217179048926505498283075356347470301747779603273014522387254548124539889316953373849280471156128606890793051665368788901562872725245875345597007067588638235192521286946002748064507459002068885853696840259303257873571745391678979626951034361561899872048130731877028826038505204471335911441733592053957253207982752578249073510725275671983391610475333038748340893247088164839728180340000651372398051058475549992203554447515093617016978230055070038800392681387100140568441 . . . . . . . . . . . . . . . . . . . . [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) 2186f1e7cd0136f941c506a1499e70be695785ef . . . . . . . . . . . . . . . . [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 (154 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.ucuimperial.web.ucu.org.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ucu.imperial.ac.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ucuimperial.web.ucu.org.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.ucuimperial.web.ucu.org.uk' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ucuimperial.web.ucu.org.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) 00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000168446d6bf60000040300463044022067df4a10c4a41127ecd7fa8ab89112cf26fbc93f6d149381e70d96d72de77a44022019cb4a5d0c45e9d35231f05e721d6e2d672c970a8f6f0487d886dfb54fb34616007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000168446d6c1b0000040300473045022100fad6455334ed44e764c21a79a4dbeaacd686fe1334b669abc7641598b006d2a002205849e333461c3cf1aefb7016e2f32df3774a7face6796c7ddb4694784e94066b . . . . [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) 007ecbeb72590bfe9eeb3fe757ffe546ae0aee62a34f6dba87cb601b1e193118f9109cd03759b0e2cd7c2f47b5f82089f5ddb89fc579ba442fe640c8b7d286def5786f2cb7b62543a48dc65cfb8afcb85f2cc09f575846f3e6010108bd138e40c4b7b054ddd63454694e430b12de32a5905e7ecd0a82909802aeb00b4ecdebe111c050f23e13e7387de186be662997275406d3ee14f9128b06933252acd0968a5dbcef411cfef54a9056bdfd626a915fca261b626d0abfd5666253406c06da070fa723d5430f1f2036e01d06d7b10f476526efaee7d35ee6cc78c8db44d3947369bd2272f0a7c3804f305764ec6530f8e2d22f3830fa96a840c663565cffa2c840