athenaswan.kdl.kcl.ac.uk

Issued by R3

About this certificate

This digital certificate with serial number 03:15:2c:91:17:d5:1e:b8:58:cc:95:21:a6:aa:20:eb:c8:d4 was issued on by Let's Encrypt.

With 2 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:
  • 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=athenaswan.kdl.kcl.ac.uk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:15:2c:91:17:d5:1e:b8:58:cc:95:21:a6:aa:20:eb:c8:d4
Serial Number (int): 268542026898859998432530775135327758305492
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 81:bd:a0:36:5f:bc:91:98:90:4f:f8:cc:ab:db:5b:f2:a2:f3:ef:8f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f5:17:29:a4:66:50:bc:c2:34:37:2c:75:18:fb:ca:4e:9f:ce:bc:04
Fingerprint (sha256): 04:85:a3:bd:f5:b8:0d:87:71:18:63:ce:68:8c:d0:e9:80:ef:fb:85:9c:14:cc:2d:b8:d1:14:68:16:fe:5c:95

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

Revocation information

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

Check the revocation status for certificate athenaswan.kdl.kcl.ac.uk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for athenaswan.kdl.kcl.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

athenaswan.kdl.kcl.ac.uk
www.athenaswan.kdl.kcl.ac.uk

Other certificates including the domain name kcl.ac.uk

(limited to 100 certificates)
mentoring.kcl.ac.uk
mentoring.kcl.ac.uk
mentoring.kcl.ac.uk
www.brightlinks.org
www.brightlinks.org
www.brightlinks.org
www.brightlinks.org
www.brightlinks.org
accreditation.lumanity.com
alumnicredentials.kcl.ac.uk
covid-testing.kcl.ac.uk
www.brightlinks.org
support.kcl.ac.uk
addneuromedsrs.kcl.ac.uk
achievements.launchyou.com
charm.kcl.ac.uk
training.kcl.ac.uk
achievements.launchyou.com
s2lab.kcl.ac.uk
www.brightlinks.org
charm.kcl.ac.uk
www.brightlinks.org
ems.nms.kcl.ac.uk
www.ctr.kcl.ac.uk
www.kcl.ac.uk
thestrandgroup.kcl.ac.uk
www.brightlinks.org
charm.kcl.ac.uk
mentoring.kcl.ac.uk
www.brightlinks.org
www.brightlinks.org
accreditation.lumanity.com
www.brightlinks.org
mentoring.kcl.ac.uk
www.brightlinks.org
mentoring.kcl.ac.uk
alumni.kcl.ac.uk
placement.kcl.ac.uk
www.brightlinks.org
athenaswan.kdl.kcl.ac.uk
triangle.mth.kcl.ac.uk
cturandomisationmvc.iop.kcl.ac.uk
*.libproxy.kcl.ac.uk
blogs.kcl.ac.uk
www.brightlinks.org
iospe.kcl.ac.uk
www.brightlinks.org
amdb.isd.kcl.ac.uk
www.brightlinks.org
www.brightlinks.org
mentoring.kcl.ac.uk
san01.hosted.exlibrisgroup.com
mentoring.kcl.ac.uk
automation.platform.kcl.ac.uk
achievements.launchyou.com
librarysearch.kcl.ac.uk
sharc.kcl.ac.uk
media.kcl.ac.uk
www.brightlinks.org
mentoring.kcl.ac.uk
nmmoodle.kcl.ac.uk
gpp-autharch-dev.kdl.kcl.ac.uk
kclsfbpool01.kclad.ds.kcl.ac.uk
www.brightlinks.org
mentoring.kcl.ac.uk
mentoring.kcl.ac.uk
api.erg.kcl.ac.uk
ircyr.kcl.ac.uk
mentoring.kcl.ac.uk
khcn.kcl.ac.uk
mentoring.kcl.ac.uk
library.kcl.ac.uk
achievements.launchyou.com
mentoring.kcl.ac.uk
www.brightlinks.org
www.brightlinks.org
curium.nms.kcl.ac.uk
radiusacsd.kclad.ds.kcl.ac.uk
www.brightlinks.org
accessedge1.mykcl.info
www.brightlinks.org
accreditation.lumanity.com
keats.kcl.ac.uk
mentoring.kcl.ac.uk
mentoring.kcl.ac.uk
mentoring.kcl.ac.uk
www.brightlinks.org
csgs.kcl.ac.uk
libcal.kcl.ac.uk
www.brightlinks.org
www.brightlinks.org
www.isd.kcl.ac.uk
www.brightlinks.org
kdl.kcl.ac.uk
mmee.kdl.kcl.ac.uk
www.brightlinks.org
mentoring.kcl.ac.uk
kclpure.kcl.ac.uk
testlibrary.cc.kcl.ac.uk
accreditation.lumanity.com

Certificate

The complete raw certificate details for athenaswan.kdl.kcl.ac.uk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAE/vM+LyoGE4kMS//0n5dhn0qkbmaS
PgFAv2JsBzdMQBXH5SMYjXd3g7ChaNI4E6vsHTQeVp435Bx3pyxqi6vStw==
-----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 268542026898859998432530775135327758305492
 . . . . . . . . [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 2024-01-22 14:32:47 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-21 14:32:46 +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 'athenaswan.kdl.kcl.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)
				0004fef33e2f2a0613890c4bfff49f97619f4aa46e66923e0140bf626c07374c4015c7e523188d777783b0a168d23813abec1d341e569e37e41c77a72c6a8babd2b7
 . . . . . . . . [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)
							81bda0365fbc9198904ff8ccabdb5bf2a2f3ef8f
 . . . . . . . . . . . . . . . . [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 (58 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'athenaswan.kdl.kcl.ac.uk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.athenaswan.kdl.kcl.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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018d31cd7fe5000004030047304502204235491dc4accb97d9f6a0b83f1513da624ddd3cb0a3c3a9cf6f3a6adb671401022100a89d95aedc4bff0078642357f789eb9c804bcb78ba6fa50c1ce4d133b5f742be007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d31cd80200000040300473045022046d2dda959f507d0527df40efe026036ef59ba043c1c6f7a0947caa51f2ca1c5022100ff4ef4db69c90a2df3533b5d72129211e168a1dbb6e1320edfb8bc468de81422
 . . . . [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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