libf.ac.uk

Issued by R3

About this certificate

This digital certificate with serial number 04:c0:b9:81:d9:4b:4f:65:13:35:9a:e1:78:5f:82:36:16:d1 was issued on by Let's Encrypt.

This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=libf.ac.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:c0:b9:81:d9:4b:4f:65:13:35:9a:e1:78:5f:82:36:16:d1
Serial Number (int): 414029939568625699689694582975386774542033
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 84:9f:b5:b3:47:f1:e0:de:77:7e:97:e7:98:92:9b:08:fa:b3:ef:49
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a8:29:0f:31:08:4f:d4:e5:16:f0:68:3e:ab:bb:86:6a:0d:9a:7e:19
Fingerprint (sha256): 9c:60:4d:78:18:0d:65:98:8f:15:9d:93:b8:ff:dc:92:ba:73:45:a4:d6:75:64:8e:9c:9e:e4:07:5c:e7:f7:3c

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate libf.ac.uk

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for libf.ac.uk

Public Key Algorithm

ECDSA

Key Size

256

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature

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

libf.ac.uk

Other certificates including the domain name libf.ac.uk

(limited to 100 certificates)
jira.libf.ac.uk
lf-droner.dk
etest.libf.ac.uk
learn.libf.ac.uk
brightspace.libf.ac.uk
static.jexport.ci
fia.libf.ac.uk
libf.ac.uk
brightspace.libf.ac.uk
townhero.ru
*.libf.ac.uk
app-dev.nuna.ai
actioniq.ideacloud.com
brightspace.libf.ac.uk
canmail.libf.ac.uk
digital.libf.ac.uk
fia.libf.ac.uk
authlink.trouve.noren.io
libf.ac.uk
fia.libf.ac.uk
admin.coastlinesolutions.com
learn.libf.ac.uk
www.thecouponcalculator.com
fia.libf.ac.uk
fia.libf.ac.uk
libf.ac.uk
*.libf.ac.uk
*.iu.org
*.libf.ac.uk
*.libf.ac.uk
onlinedegree.libf.ac.uk
learn.libf.ac.uk
oasis.libf.ac.uk
learn.libf.ac.uk
lonmail.libf.ac.uk
fia.libf.ac.uk
app.upbycellance.com
careanalytics.co.uk

Certificate

The complete raw certificate details for 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-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEj9SvvNpw9bWHivlx380h2VkQL+o0
N0gclkE6+ta+LHjOKubIoaEj6ofBUadBQ5JJcvf2MPehGWK4zGNY9tiYOw==
-----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 414029939568625699689694582975386774542033
 . . . . . . . . [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 2024-03-25 09:02:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-23 09:02:19 +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 '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 1.2.840.10045.2.1 (ecPublicKey)
 . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.10045.3.1.7 (prime256v1)
 . . . . . . . . . . . . [c:0|t:3|false] BIT STRING (520 bits)
				00048fd4afbcda70f5b5878af971dfcd21d959102fea3437481c96413afad6be2c78ce2ae6c8a1a123ea87c151a74143924972f7f630f7a11962b8cc6358f6d8983b
 . . . . . . . . [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 (1 bits)
							0780
 . . . . . . . . . . . . . . . . [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)
							849fb5b347f1e0de777e97e798929b08fab3ef49
 . . . . . . . . . . . . . . . . [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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018e750f9a740000040300473045022100b12e57c839239203a42072887e221dfb6cf819f8c2f121039bebd79feb92e4d702206580c0d10274e4b3ec11517d69f5f07dbc2480b20ce3cbcbcde1491ec2897b9d00750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018e750f9aaf000004030046304402203b3328d4a268605796928c3489f6ea3dead4aad534087d1212867729cb320290022057b5fe6614cb1989c061e95b0cf49e808641df89f9d51fc2af1d7234acb66f2d
 . . . . [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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