www.learnmark.dk

Issued by R3

About this certificate

This digital certificate with serial number 03:b9:14:54:8b:d1:57:22:d6:ab:36:69:45:2e:7b:78:41:6c 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.learnmark.dk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:b9:14:54:8b:d1:57:22:d6:ab:36:69:45:2e:7b:78:41:6c
Serial Number (int): 324316119224346759109715374301186931310956
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 96:34:3b:76:4f:54:f3:34:63:2a:71:21:51:f9:ba:54:73:dd:34:35
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7a:e9:a4:30:85:fb:c2:ef:97:2a:23:89:ff:1e:c1:1a:2a:5c:b1:66
Fingerprint (sha256): da:42:cc:01:aa:42:95:ab:80:6a:47:c1:83:e0:f9:d9:4f:91:54:21:58:a9:db:7c:bb:78:e7:12:63:51:24:13

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

Revocation information

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

Check the revocation status for certificate www.learnmark.dk

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.learnmark.dk

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

learnmark.dk
www.learnmark.dk

Other certificates including the domain name learnmark.dk

(limited to 100 certificates)
www.learnmark.dk
*.learnmark.dk
mit.learnmark.dk
www.learnmark.dk
*.learnmark.dk
mit.learnmark.dk
mit.learnmark.dk
mit.learnmark.dk
*.learnmark.dk
*.learnmark.dk
mit.learnmark.dk
www.learnmark.dk
www.learnmark.dk
www.learnmark.dk
www.learnmark.dk
www.learnmark.dk
*.learnmark.dk
mit.learnmark.dk
www.learnmark.dk
mit.learnmark.dk
*.learnmark.dk
www.learnmark.dk
mit.learnmark.dk
*.learnmark.dk

Certificate

The complete raw certificate details for www.learnmark.dk in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAjBqRenDl6rCvFr3k92Mj
RXiNAe30gr89PnUbiNTCb074EYxAtCMA0Kt1vGR9YfXG0+SyFIC6vT0uSOBtgBXy
OtNkIRLtX4KmNpBR/PBqBolrU6JFtACvb8GvngbJnMT1F4b2t95R66rO8jmZr9H6
oZitxre0WKOcVLhSHhHKXM4VdbLwgLDGdCjFItydI5FZxewU35Pl8i5d0M6p4d7+
EMthX3Rx8rmxshYn1F0+7JhZIKXq2WUlCOIZYOv1afjArknTGGj8mHkRN000SRDb
glu3hgQEdnCkKKt9vWIcdGVrt4aBU8AwqKCLW6OKbJkOodfNfjfzfuuSwpznKMPX
YQIDAQAB
-----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 324316119224346759109715374301186931310956
 . . . . . . . . [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 2023-04-27 17:19:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-07-26 17:19:49 +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 'www.learnmark.dk'
 . . . . . . . . [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 17686463999721865091728581261891009475364235724882516208192806868330206373462261941437911360072085621220501160428298110855355373883261944656426595483088987683911501519827601782267838138110623586174085590637089630528071367080595433023677850075369654343981910744844106800671142227197365021337213421061027590377417916112698018361182664153117599277129000976631822101645049448332177963980484922296667064458252144600707911802448233363394420827754823917000134074989917840232382177553028112492738644223180283660718000018459218486563038942279832190322934106061254907815722611139414892117710929516038952597278886664125559330657
 . . . . . . . . . . . . . . . . . . . . [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)
							96343b764f54f334632a712151f9ba5473dd3435
 . . . . . . . . . . . . . . . . [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 (34 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'learnmark.dk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.learnmark.dk'
 . . . . . . . . . . . . . . . . [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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000187c3f167e10000040300463044022070b941c1a3eac50dfcee93a535a81456997c1ccce326e6f9b98ab84feed7bc1802201b6c8fda81973940c729480746028d7201d90ccde14368c4e5ef7fc529cc056b007500e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e00000187c3f167c40000040300463044022033f856983ef1d6ff845e9624a5a2386fa8b3e70e321e28da8edc5e5e46ff5f82022065f3f7a558c4c64cebbd4b5898768de86ba7d6a147ac301cca42411af6343c5f
 . . . . [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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