learn.libf.ac.uk

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:7a:74:43:7f:2c:1f:b6:62:fc:b6:92:6b:34:07:05:ba:16 was issued on by Let's Encrypt.

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=learn.libf.ac.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:7a:74:43:7f:2c:1f:b6:62:fc:b6:92:6b:34:07:05:ba:16
Serial Number (int): 303005847470397677898758410554710138665494
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 73:b1:d4:39:24:33:fa:0a:f7:67:ae:ca:45:1c:f6:55:82:48:0a:c8
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 98:29:7e:d1:cb:3b:86:6a:23:0d:b7:22:a8:bc:59:da:4c:ee:6e:2b
Fingerprint (sha256): a5:5c:23:aa:30:57:fd:0b:36:9b:99:aa:3b:39:26:31:63:3e:78:77:f3:f9:42:83:7f:b2:eb:04:0a:5a:3a:f9

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 learn.libf.ac.uk

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for learn.libf.ac.uk

Public Key Algorithm

RSA

Key Size

3072

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

learn.libf.ac.uk

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authlink.trouve.noren.io
libf.ac.uk
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admin.coastlinesolutions.com
learn.libf.ac.uk
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fia.libf.ac.uk
fia.libf.ac.uk
*.libf.ac.uk
*.iu.org
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onlinedegree.libf.ac.uk
learn.libf.ac.uk
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app.upbycellance.com
careanalytics.co.uk

Certificate

The complete raw certificate details for learn.libf.ac.uk in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 303005847470397677898758410554710138665494
 . . . . . . . . [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 2020-03-24 08:39:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-22 08:39:12 +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 'learn.libf.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 (3184 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 2918903131506190427951828414032626801038247967059095697441168954437473243860071842940112483771911960965443600629170841070243577286574272657225654709399762070763998957401802950275692119737578560188575981162982273925749844932529133795960784053920538993492936651627877546627968608358832633414980045333381126399484782849651364522541948777481143650310872567426937134268367637850735550320474764792386138541268511836848897030785302405328929222080497579510896056081227724640932078266092943343355519379352738489872056082251019831646866625481915638611117145271517626560609510013756737562418495897397465546997197753385571648924392764104815354237892139048544551903073431802824104013448033690163817610257411849548961985624325946738997194742540892894591565879382088337552841324306348054163878227503871531893147336845249952491905028457251290924583535230941871150820188613961208316163335584612336989294741759595885372348881403323226573823799
 . . . . . . . . . . . . . . . . . . . . [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)
							73b1d4392433fa0af767aeca451cf65582480ac8
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'learn.libf.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a112128418759681714558000001710be904aa000004030046304402201a05c4c4366289c6601c1a2a8bad84c33f8f4584d4b1e5b542790ccd1de42d6402202a37a0022ec3e7cb995852fa2bc92256919d9d76a773ed3d211873ab840df1d000770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c000001710be904d30000040300483046022100d8c9d9bdb42424d324f1760bf72503d4b90d1c8d04c17fe986a7f2da44855482022100ebe3658402faa21e7f54b119ff26fc21584a601eba12a6f9414b3ca901e0ee08
 . . . . [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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