www.learnmark.dk
Issued by R3
About this certificate
This digital certificate with serial number 03:e3:d7:17:0a:05:b3:96:b4:07:73:9c:c8:5e:02:26:9e:cf 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:e3:d7:17:0a:05:b3:96:b4:07:73:9c:c8:5e:02:26:9e:cfSerial Number (int): 338866858731531091214649922881872313360079
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 3a:ca:a8:10:c2:e4:4e:58:0b:96:fa:54:f6:15:c4:9b:6f:ec:4c:c3
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): c8:7e:3d:f8:29:4d:1f:a1:47:5f:7c:80:00:40:62:17:71:de:1e:5b
Fingerprint (sha256): 8a:49:08:c0:60:a8:cc:e5:25:c1:4e:bb:93:88:85:36:f9:ba:9f:b4:c1:fa:19:28:54:86:17:d8:d0:a4:eb:a6
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck 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
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
*.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----- MIIFMjCCBBqgAwIBAgISA+PXFwoFs5a0B3OcyF4CJp7PMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yMzA1MTExODE5MTZaFw0yMzA4MDkxODE5MTVaMBsxGTAXBgNVBAMT EHd3dy5sZWFybm1hcmsuZGswggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB AQCYTBS7HAfuajul5v9ur3HH+ax0LywVg71zIgFR0BBA6DM/gDJRFSAMAyzT8LX/ D9NcUGQP+FwP6xP9MVDw+WnWKlNJA5eW8ZVExkLdfai4+m+QhYsuBIz28IWN9hj2 mohkJQWN6YKq1bTSHsvoOP2ujVmsJOHtmDcAGyo5zZ6oz3CL4ZSb9kkjpx1WDB/e 9MmmziACNwSuAVSjzQOQdm1Xm/WGcz3YpVUuU0x/mbwFQ24s+QfU2h1E3arMvXBC rRnwS1awOBG1yCcLgzLs/nCMwUezhGmaeHXB6ibq7ccNFbg5LfHnBEhP3wBQU68P r4AmZ30xAR/g69HA0D89gqhTAgMBAAGjggJXMIICUzAOBgNVHQ8BAf8EBAMCBaAw HQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYD VR0OBBYEFDrKqBDC5E5YC5b6VPYVxJtv7EzDMB8GA1UdIwQYMBaAFBQusxe3WFbL rlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDov L3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5v cmcvMCkGA1UdEQQiMCCCDGxlYXJubWFyay5ka4IQd3d3LmxlYXJubWFyay5kazBM BgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIB FhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQIGCisGAQQB1nkCBAIEgfME gfAA7gB1ALc++yTfnE26dfI5xbpY9Gxd/ELPep81xJ4dCYEl7bSZAAABiAxA2G4A AAQDAEYwRAIgQi6VjDokJCxsdBQqPB+FAKRmrN11Ma1tZUqwg2h3unACIBqZY3R5 n7DNtEAmFn5D2UMPDEdqztN6p6YfI8gSTCNDAHUArfe++nz/EMiLnT2cHj4YarRn KV3PsQwkyoWGNOvcgooAAAGIDEDYmAAABAMARjBEAiBkAu8PJN29jmO6ix3eu2q8 5f37DbcFaHp3HIWQQBlhbAIgPe0Fuv2P082S9Al3VezghaFWo0nk1ZS5HxjBKNzW ozAwDQYJKoZIhvcNAQELBQADggEBAEtj5AuA14kShATMQkStYiFPF0DF2uGcgOjx BrfNr1Tch8lwGyhmiaYwjK1M95oTke21QUtPMGir/vHohpH9XZINBZrRr4ylgLQ3 9F5XSM/Wk235OgOWwG1Cg/DQQLNmG4RwWYuSszoKtbpCoRTdWldz8BC1gbB3MVEg 0vhBTToPhJZzaJVjCxRbNivJUrreAP1fOgScujGfVr6Q/lntOigpjy96e/ANW8qc Kw+IVl572AVjTxWGLjzJDNPjuxNGkpTi0SP4AQ5uJ1M845wEGfC/RHSJ49oc57VM m5BlUknIJ2GJjxDlohEpaaC/p9c5+lTj+UcFhbIxwdVSLhiq9Vw= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmEwUuxwH7mo7peb/bq9x x/msdC8sFYO9cyIBUdAQQOgzP4AyURUgDAMs0/C1/w/TXFBkD/hcD+sT/TFQ8Plp 1ipTSQOXlvGVRMZC3X2ouPpvkIWLLgSM9vCFjfYY9pqIZCUFjemCqtW00h7L6Dj9 ro1ZrCTh7Zg3ABsqOc2eqM9wi+GUm/ZJI6cdVgwf3vTJps4gAjcErgFUo80DkHZt V5v1hnM92KVVLlNMf5m8BUNuLPkH1NodRN2qzL1wQq0Z8EtWsDgRtcgnC4My7P5w jMFHs4Rpmnh1weom6u3HDRW4OS3x5wRIT98AUFOvD6+AJmd9MQEf4OvRwNA/PYKo UwIDAQAB -----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 338866858731531091214649922881872313360079 . . . . . . . . [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 2023-05-11 18:19:16 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-08-09 18:19:15 +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 19225739284385745321954801043674399062447193384286797915122717604354614083607440827638143620615351356586827873560364695980686280822464217522168471935003811446206876424981415657724469168616297701788067173237743090710046942127395264870895375069169090080502256104560922996451091164117467368484535493630823791344805963760914324601432220517587182396442289820321148261640638354256504032031084730046591395036245804956774574938678262253814803143506987580465853678162242322685924263925080515512648286174715656405096092748447461719110251923337683375216643000419039211442297257649249678766392711156783084356701534160190068402259 . . . . . . . . . . . . . . . . . . . . [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) 3acaa810c2e44e580b96fa54f615c49b6fec4cc3 . . . . . . . . . . . . . . . . [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) 00ee007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb499000001880c40d86e00000403004630440220422e958c3a24242c6c74142a3c1f8500a466acdd7531ad6d654ab0836877ba7002201a996374799fb0cdb44026167e43d9430f0c476aced37aa7a61f23c8124c2343007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a000001880c40d898000004030046304402206402ef0f24ddbd8e63ba8b1ddebb6abce5fdfb0db705687a771c85904019616c02203ded05bafd8fd3cd92f4097755ece085a156a349e4d594b91f18c128dcd6a330 . . . . [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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