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:d5
Serial 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.org

Check 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

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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-----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-----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