ars-serendi.de

Issued by R3

About this certificate

This digital certificate with serial number 03:81:61:2a:76:34:ac:96:29:3e:3a:4d:56:d2:57:4c:12:9d 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=ars-serendi.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:81:61:2a:76:34:ac:96:29:3e:3a:4d:56:d2:57:4c:12:9d
Serial Number (int): 305362438717638607666045084598540172006045
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: da:6b:3b:6a:0a:bb:7b:6e:f6:ac:7c:e5:3f:7d:40:01:1a:1e:04:7f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 75:5c:60:20:38:5b:4e:4b:fa:0c:86:8b:1f:ee:8a:01:ae:d3:23:60
Fingerprint (sha256): c0:e3:b8:49:90:8f:5c:96:68:7d:c9:fd:d8:84:39:42:13:79:24:78:8d:95:14:25:79:1d:bc:08:83:2b:d7:ef

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

Revocation information

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

Check the revocation status for certificate ars-serendi.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ars-serendi.de

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

ars-serendi.de
www.ars-serendi.de

Other certificates including the domain name ars-serendi.de

(limited to 100 certificates)
www.ars-serendi.de
ars-serendi.de
ars-serendi.de
mail.ars-serendi.de
www.ars-serendi.de
ars-serendi.de
ars-serendi.de
www.ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
mail.ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de
ars-serendi.de

Certificate

The complete raw certificate details for ars-serendi.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1C2w6uwxkYiUIBF3fPbP
alpnkchF5J9LkRm4HDSGuOd8lGT5IVofDn4ok4RYoAx4L0LrDsa1zvaiuU/pAipr
g/sItw3TJttsIsnMBnBf2jgOiJRJ40xDayV/IRNMv9VG0D7WKmElSgcCsGLtKVuv
1Q/Xwar6tnfWsjHt2FNVlDKNMVn3BPseM4oaTjzsikrE5E2nhR8fJ2Z6IdorMEdB
YKdvryxctcWzdwbVp5qBZQRBKvkl8/lgwlIWFoZ+Kk7tbyB4DMI0y/DI33Wl74ZJ
GdRWYQLA+YevpZz0iE5CLa5kmnXdqbQ+7m74Em1Lweyol84hV423bQaVrp990xmA
vQIDAQAB
-----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 305362438717638607666045084598540172006045
 . . . . . . . . [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 2023-07-05 06:20:26 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-03 06:20:25 +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 'ars-serendi.de'
 . . . . . . . . [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 26785051766383989272452333569422765969098261435998226507007543158083872350565926223856175154151778476025993686837694149874782621161159618353599661097430437728180350555992568183931944666565869861144836031886352590653351767598767598062777068547020080675673880168812607294284995177112986730129187603186773270304118497267731767025023890989266011469186541165364435168180493208985969823138646161749618258313134168361312717191391011492059740194206607174586548074348829342037058026119264273482805702960161252569991338667816233975632845619641502029356950782223749574141415954421639557364798857662632390982243416177754416709821
 . . . . . . . . . . . . . . . . . . . . [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)
							da6b3b6a0abb7b6ef6ac7ce53f7d40011a1e047f
 . . . . . . . . . . . . . . . . [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 (38 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ars-serendi.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ars-serendi.de'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018924ec821c0000040300483046022100ba59e6df168e31c24b33279ac915efbb6e3c69c48688833371632bc4ebeea131022100ea1c33cf4a501c9aaefa1d6e8b46ca982c9fe6e0cfe3e5eaa94a42de1e367b5c007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018924ec82650000040300473045022034fa5e3dccd9cfd0955c765b38b57745aa003854ffded3e7a7a275ac1d1854c6022100a5212bf965f871c35293c3004789d40e0a22f85995864bd7e67e739c4347e83d
 . . . . [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)
		00ba75ca06102f356ad7f19c483b029662c67e41dc3b0a121d255b999ebae67cfb88413f7566bb1c33d3b14b1a3ab9339d2c51767c14de9d176e1ec39483841ea3055fed2e6c2b8a5e37543eb1d131f159ef8c6d29e6f487011ead12bf81971f7418b436485867682c0ad7a1449630a5fcbb3811ad7721ac14993785a66d076ba025e9b1673e1f564c6516adab639915cf80d6322aacc8b94b8c31a0d47fed9cee8c794c3afea1682eac258b94807e8771ad694b1a19c8809e5536a9dc834797e26b9aa202185dabfacf5c63efb912701d4a9d13b91038c32bb8f1506ccf2c97c8f0f27dcc39ef3aa6797048da0b2a2e8d0c793981cc335e52a60217cc418b9fb1