ars-serendi.de

Issued by R3

About this certificate

This digital certificate with serial number 04:52:b5:c1:fa:4e:1e:b4:f8:c5:b0:f1:33:88:46:b4:86:14 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): 04:52:b5:c1:fa:4e:1e:b4:f8:c5:b0:f1:33:88:46:b4:86:14
Serial Number (int): 376593895271880408505986252950533615945236
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 26:23:97:a5:49:e5:ee:4a:24:93:14:f3:f4:0b:de:27:db:ec:ee:94
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f5:cc:ab:14:f1:af:be:7d:05:b5:0a:d2:db:12:ee:65:bb:8b:0e:ba
Fingerprint (sha256): 61:a9:85:bb:c1:4a:c8:4a:d2:5c:62:bd:d4:14:ce:2e:6b:ce:cd:00:1e:64:bb:c5:5d:e8:37:3b:7d:ba:81:f6

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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtNYib9CgcYoxZo3zt3x2
5shdB5qHRSf1sOmEgBMSFZo57+HewYMHUrNdXK3HRrs/7sWm7bkFpOKMQuhN3/3Y
TERk5Q0eKBhL+pR1VgaWtXu1aNvyOPDRfkyuFNVvThGDRRg0vsOkLlVCZkH1svJq
OfLYXSC6p0xbdKNgFD6dY9M0v052cf653Kz1Yo7fB6tdm+t2xlE4KjH0nEFc9a3U
+Ad9ZGiYkRltL8/VfjeZFfaQ9HkdNHzKMzlPAz4Dhlp5kbKZ3Evu9Q93X2iON9k7
/zP/jqVwn8/3hvXz3KTgoCtCbLT1wHvPFSQSDQAQEvAYEbhCaNMWAzqdy8V6j/+x
dwIDAQAB
-----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 376593895271880408505986252950533615945236
 . . . . . . . . [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 2023-01-06 05:20:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-04-06 05:20:22 +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 22828488560571999879055767648487777954254988383525477509159498604156836023079696266199598176220872774563486513257278655026912968602323313749725279954160438406984235301803727916740268587534553051723504926437383562990173021560034552487170069588341730446098902069363510607403034755450542097897345715667515964722948796043584955481479110283764243409462745395910486273660882117004952435067511182948951481649564896460242267207340236010281297427528241686029149747131554017028488345361585662583459862277326973837059514728930098397425870425914499135385253301794705624736438678027255587081390111816246749826680795810215191622007
 . . . . . . . . . . . . . . . . . . . . [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)
							262397a549e5ee4a249314f3f40bde27dbecee94
 . . . . . . . . . . . . . . . . [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 (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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018585bcd8d10000040300483046022100b5373bb887b6c127a22668a5b0690acbe7d541a11e7e29b4bb7d78507922d3b2022100df5a13853a23a44b5d988a52803fdeed8bcc4890371a7d9296887afc85b3d659007500b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018585bcdaab0000040300463044022042b1d517f4464e455c3a7be72650218a02c1e8dfecf1458fa930d1fecb45858f0220454e6292235586a337d7f5f351eb007d7154e68a6fef7828586f424d26c05edc
 . . . . [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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