alexander.dk

Issued by R3

About this certificate

This digital certificate with serial number 03:db:bd:dc:b8:d1:f5:31:95:cd:6d:84:bb:4e:28:ec:da:3a 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=alexander.dk

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:db:bd:dc:b8:d1:f5:31:95:cd:6d:84:bb:4e:28:ec:da:3a
Serial Number (int): 336111066296076427009989909121831715789370
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 35:a3:12:84:a6:70:59:7b:8d:12:34:5f:42:6b:39:d9:73:13:ed:2b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 14:d7:a4:f1:ab:bb:28:83:4f:f8:da:64:01:1a:31:86:c1:e6:78:f1
Fingerprint (sha256): eb:0a:71:53:09:14:39:3a:6d:9a:ea:86:3b:3c:d7:c9:d3:66:a0:e8:dd:93:ea:44:b6:16:d1:d2:9a:6d:c0:e9

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

Revocation information

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

Check the revocation status for certificate alexander.dk

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for alexander.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

alexander.dk
alexander.is-a.dev
www.alexander.dk

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alexander.dk

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA8txyGZJF6CfPVReG/j4P
ArvhHZEnB9QyAG/S/crdu54aEgxJFIxBdT5BHQqerIQAmLg1qAkLYAxLdSamFSgl
OPkkY7o/LH7O/a9115Ypz46padtkmvgjcDHiwUUGrWSSNRHHCYoU1U/3BN+2ALTU
ZuQmSxkuYI3Kb5gycclEw98Y4kPnr7lh+qDdBFWmbE5rhCDGBlksZHO/KawrbVZW
+TmP6qaDzqocYzSeq9Sk8guaFnjG48zW7qHVV+/jCt/LqBnx4JMxMC9qC2loMxkh
3WZcwi8vDqp5KBBC5RxuVYSUEs6koLY17vxuVO01WNGcE/EY7D/K+APtraRQr73D
0wIDAQAB
-----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 336111066296076427009989909121831715789370
 . . . . . . . . [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 2023-06-24 20:22:59 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-22 20:22:58 +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 'alexander.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 30658375629303453487105073691468694542632075045178220676245727411298284579047029071112849530313895055821133659567036097276249355722735578489872302739464765578407783664443622294712843855473038136424512253648739983078931767865719843225307237781863057093122447698340455821526781248003460895202472869687318405622446838576940659399429304603732010152372877794921439467943105493631058201571503042228076754443217271292621814455816545924683244975075308954068594155114941740890009235771829684168615371318081063746633983712957598651640966452383482676978408029705148806280630334717390899800827291429912227678848443293260136170451
 . . . . . . . . . . . . . . . . . . . . [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)
							35a31284a670597b8d12345f426b39d97313ed2b
 . . . . . . . . . . . . . . . . [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 (54 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'alexander.dk'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'alexander.is-a.dev'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.alexander.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 (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)
							00ef0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000188ef49eeff000004030046304402203941d376216b6460fc4cae12fda46b1720cf89c27ff3acc796c7e4fb90843446022061d16b904e49ec50ee502fcdabea76b3c266887b50f5aa9a37acf59d097a2787007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e00000188ef49eef50000040300473045022100d14894d2d38a7fbe16dc4d908ed92ee1ec0203bb841cd72612ca6f8a7b5fc4e4022013ded081ab931a872338aefedb5ee0554f4733923a95e1f514bde01df2093e0d
 . . . . [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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