www.flunk.de

Issued by R3

About this certificate

This digital certificate with serial number 03:f8:36:9c:96:1c:40:79:d4:07:9f:b1:b2:6f:ea:b1:29:a8 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.flunk.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f8:36:9c:96:1c:40:79:d4:07:9f:b1:b2:6f:ea:b1:29:a8
Serial Number (int): 345799476146355579189120490740191857813928
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 7a:f1:b7:a0:12:13:f1:cf:d0:7c:c2:6c:c1:9e:c2:e3:ec:9d:0c:32
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 2c:4d:8b:40:36:e6:0c:9f:82:2d:0b:11:42:c3:6b:b0:c4:01:0a:e8
Fingerprint (sha256): b7:ba:ea:58:94:b6:5d:9a:20:99:fb:b0:92:34:0b:ae:cb:1c:2a:b4:9c:e4:4c:96:37:5a:39:b1:85:66:15:82

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

Revocation information

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

Check the revocation status for certificate www.flunk.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.flunk.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

flunk.de
www.flunk.de

Other certificates including the domain name flunk.de

(limited to 100 certificates)
grossehunderassen.de
flunk.de
spulen.t6a.de
www.flunk.de
kinderbibel.t6a.de
www.flunk.de
flunk.de
www.frucht-shakes.de
flunk.de
www.versicherungenkredite.de
www.flunk.de
www.flunk.de
geotextilvlies.de
www.flunk.de

Certificate

The complete raw certificate details for www.flunk.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhZ12cxD4FvkCKwfDU+jS
dr4BUrSi3epsm0u18GSsNtX0XJ7fy9b8FzdsOZhur+lYbBt9YEmCzofzcZfZYT8E
wmaGgQ+aqHk8aAhDooxajoXfqbYMGQKiVdNmDGU2ajIJ/j05xxl5mY27yHM9c0b5
YpJcm2mTVksUYLxnJV/HleG1UUwjbo35Vl1nAUc0yRpRzjiSgfkXe0siH4CnZMgr
aQZ3PwhEJmo26krckPZlMb77U2BS8oNRnPV6BeME5TX5cyJoh9AxJWrFVQ9H8O7Q
c7AycqMN0LnitcqEB7fWpmU2E4SDsChLrKwBw+7YNmXsOkuNTU/HKEVvCv1FuLIh
dQIDAQAB
-----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 345799476146355579189120490740191857813928
 . . . . . . . . [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 2023-07-03 03:06:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-10-01 03:06:19 +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.flunk.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 16867342308509508988227896138802755095173142198437543470936489971580960817410840816705478532944350189085095342367003994754837751035848333093795889585529437609071780496006087906926857096087109920491757137003940900901172611488123623474192375037527019669445451962463724589243737500823042118518871532214901451780541972336885970681483234075810207197811361135218572625349213804842650456191242394683265000818399248669637257146409671745872730091630507985919590298246824146617109592825825042940373908673779105731781775635941986397396295912381933875393401972384325306813068309088621862275422927620466919660893605098772105404789
 . . . . . . . . . . . . . . . . . . . . [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)
							7af1b7a01213f1cfd07cc26cc19ec2e3ec9d0c32
 . . . . . . . . . . . . . . . . [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 (26 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'flunk.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.flunk.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)
							00f1007700b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018919ee144a0000040300483046022100b82f089e7d05cd459fbbfacba4264efaba0c95f7e379bd78e146bf6b1aed3080022100b57586cf99546cba247042d3dba71f9d579b349dfbf16587e1abb59fbcc2f23e0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018919ee14580000040300473045022036b42720ba308e469fd95463569d9578a2c3bcc8ec502fffad8bd7e823b6129a022100df012beb75cb6cb9dfefb62428e2e3adae0a6985e0ccfc276698e87be845ac9f
 . . . . [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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