korkortnu.se

Issued by R3

About this certificate

This digital certificate with serial number 04:fe:7a:75:40:e4:d6:61:d9:c1:d3:ae:c0:c1:9a:53:e9:8f was issued on by Let's Encrypt.

With 3 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=korkortnu.se

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:fe:7a:75:40:e4:d6:61:d9:c1:d3:ae:c0:c1:9a:53:e9:8f
Serial Number (int): 435043639555382148390713999124778303351183
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: a9:d3:bf:02:53:9f:fb:55:c0:5e:b8:c0:3d:c8:06:23:43:91:1e:9f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 8a:0a:97:9c:f7:b7:a7:fa:c8:66:04:6f:d3:ab:5c:f6:85:f2:d0:fc
Fingerprint (sha256): ee:f3:6f:77:3a:2f:43:d5:de:82:8b:e8:95:83:ab:0d:7a:66:d9:60:6e:20:92:b4:77:3c:65:02:87:69:cc:43

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

Revocation information

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

Check the revocation status for certificate korkortnu.se

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for korkortnu.se

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

korkortnu.se
webmail.korkortnu.se
www.korkortnu.se

Other certificates including the domain name korkortnu.se

(limited to 100 certificates)
img.korkortnu.se
korkortnu.se
img.korkortnu.se
korkortnu.se
korkortnu.se
korkortnu.se

Certificate

The complete raw certificate details for korkortnu.se in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiLY39myB7RyePWFvIUPf
sZ8jiGa15IarwUnOQXitsoeXtj0WNfNaovi26VMclW1ZUYWGvxDRfsBV6Zy6GbV7
d67Lum7tUFeAv+RcQufT0zkjXgQJ+sWDyccHmGHHpqNl8iJm7Mtwb6qxi2H9b+hC
Z8LenSh1zCwSrSs38K3wrHNECMvDxlkjwyFy18D104EX6Y0ysPH71yVZvYdzkxdD
WDoJTE8N81tirgDbMogGLePG5r8seWy8kcqQQxYDEPwLj3ylX//hUm+dPWmZ0L+H
xCK3KVqSkkYw3dufM3FcpM2iu0OC7ZybZuR+6dWp1VAmM4utMaynOZQZ9cmbu6JN
4QIDAQAB
-----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 435043639555382148390713999124778303351183
 . . . . . . . . [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 2023-09-27 17:21:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-26 17:21:45 +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 'korkortnu.se'
 . . . . . . . . [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 17258264817911512398512234667876485206231140364529330477355977141376348167218272701291133766501372704384471320003808460489929672348574820386754959438941636378646798459994446930369358204744945520601591034603686034901838702965421287742857089459725773629301321831740183168493241798216795587489203357878834947697351724723325057059051855954587702612695984658462673811653900116543406492236425142872728075227017450886313665927450843647502627211057023559771340004758890298751921302161455707103921939581647854055852038566782801497812689227636821765285994605231585889997782712238349210326557136175503074382019542775452557004257
 . . . . . . . . . . . . . . . . . . . . [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)
							a9d3bf02539ffb55c05eb8c03dc8062343911e9f
 . . . . . . . . . . . . . . . . [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 (56 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'korkortnu.se'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.korkortnu.se'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.korkortnu.se'
 . . . . . . . . . . . . . . . . [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)
							00f00077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018ad7e028ab0000040300483046022100b687fdf510fc8a532cd68598c36f15ac859cb8fd0aeaa255a2309c747796957b022100b097eaa1d126f9b2250f62b57d6b6ec0c5ffe1932b7e65d34246113745281282007500e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018ad7e0289400000403004630440220682b869320a3f47cd38312fcb11fd7bc658193b967c0fc5e2f3c2317191e295002201c75c732b92fc417ed463cb6dcd73d278497eedef60d4b50c0d6c94438dd51b4
 . . . . [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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