alexander.dk

Issued by R3

About this certificate

This digital certificate with serial number 03:e3:9d:79:85:6e:44:b1:b4:79:11:c5:3a:7e:e4:f5:08:14 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:e3:9d:79:85:6e:44:b1:b4:79:11:c5:3a:7e:e4:f5:08:14
Serial Number (int): 338790274855888720627285154510881416349716
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ac:fe:b7:28:bc:f6:8e:05:73:50:2c:d2:9e:76:8c:05:c9:ca:bb:61
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a9:4e:49:04:d0:f1:b3:32:28:a3:36:6e:7b:0d:c7:04:0d:3f:f7:1a
Fingerprint (sha256): 3d:1c:08:b6:a6:de:15:f3:4f:1b:1f:f4:48:84:13:46:fd:9f:8d:a5:a5:dc:f1:e8:1f:b6:8b:a9:96:17:3c:94

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwM/Po2leT0gxOAdUBmg4
ZbKHS9A2Bdi5NxdB/ZEi+mo+zbmkDvUujrUO1CfEVfj506m53lbEPWDZfbXUsauJ
k1o7UQrOx+Ggy5nMFY6cntK1AF43qu1f+bVWwbIKxiTQQEcbhw7QjVhq7HMMH3xc
AkIlzWLj5nKZGwsqC2y7kXjb0/VTdWJOQ4wdavJu7tN7B3KGh/r/AyJt9lnbxPNk
D6mUDtwp7cyJ571YVkqN5c95Dq71FbJnS1Kk40d6yp1FDwhUZ3/B2a+NDgyWCkUP
mxG3dwqJsiMtxVoTdGhAWz/1WoyknbGflOvp/uAJpAumPxF+UJiXZVI8WazVZvpS
GQIDAQAB
-----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 338790274855888720627285154510881416349716
 . . . . . . . . [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 2023-08-23 20:22:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-21 20:22:24 +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 24340230019900954155074479218086457420046024356597979841371660183525929325707337017585282847736732478390383556883482911063127368273817442095385433692998957019467169988514921679988681911613504280070678115629847873385339994740255046157609038305038110747090349964209258800498548460266248890759138423562074931838294510485816736492855056277670203070010924197540555158628167265833083661448020689765804967751171149295772327719202836451678711379465098371796480859947940141825058365469691898278567643192222517935158221107625817165622917582660604672451219896915286117712354800705320301216200833354735012033251813968691871765017
 . . . . . . . . . . . . . . . . . . . . [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)
							acfeb728bcf68e0573502cd29e768c05c9cabb61
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a2446f7850000040300473045022100ee0daae3f1ab271ad13bceab7da7e622f43a4303b4e941e384c69372e5f7f5c502201d78f12448f2ff962fe00b26aa2ee20a29fd533dc8ab74d0895a73210a425d47007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018a2446f7c5000004030047304502205f497520bb270fa4fa9aaca7520854d30e03dcc717b0251a846bc5e01bc86ce9022100d97dde60643b7db5cef1c64480e9c917a57151c3be7af018a5be1ac67e419ff6
 . . . . [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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