www.flunk.de

Issued by R3

About this certificate

This digital certificate with serial number 03:39:e2:a1:bf:38:8f:6f:9d:16:b2:66:91:57:70:36:c5:05 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): 03:39:e2:a1:bf:38:8f:6f:9d:16:b2:66:91:57:70:36:c5:05
Serial Number (int): 281034198075037250139077009686717644850437
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 30:dd:0d:ca:cb:c2:b1:44:ce:4c:84:57:b9:cf:ef:61:ae:a2:f3:08
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 23:6b:ad:5f:6d:bc:3f:36:02:5c:1d:a2:22:bf:78:11:46:76:03:df
Fingerprint (sha256): ac:5c:27:89:d1:05:a9:6c:70:b1:22:11:e3:1d:97:e9:53:91:1d:00:bd:fa:56:5c:b4:d4:3d:bb:7e:2a:21:62

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-----
MIIE7zCCA9egAwIBAgISAzniob84j2+dFrJmkVdwNsUFMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzA5MDEyMzMzMzhaFw0yMzExMzAyMzMzMzdaMBcxFTATBgNVBAMT
DHd3dy5mbHVuay5kZTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAK6g
LItFbKw6Y3MiN8SCJ+zy88F/Yz2+iA9N/5DrxShv3SQyxgSWn83exmZG/WHlX/wf
n1RIOunRuad132vEk3E6HpdleZAKzqTKT0BecC8hy3JtyTeDez00Bs5XeoALfNFO
b6DnHNGItcqE7unetArzbNg5GH1atSrqiE6q8vrq2he5u02q+yJSFhEMYqJkEb5x
AAvydYkqxtbl78FZusHz7Of4bx1/Vi+/zYVShU81gKPcNalHSP3sqlP1v7IpUkEz
yLPxAdauA6a+mYUvqyFdlgmjJUYuOd7X/nXplMxbhqrWQCyZwVTmPG3e1G3q6TPM
ew4ajH2Q13FnOqxqOK0CAwEAAaOCAhgwggIUMA4GA1UdDwEB/wQEAwIFoDAdBgNV
HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E
FgQUMN0NysvCsUTOTIRXuc/vYa6i8wgwHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA
5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMu
by5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8w
IQYDVR0RBBowGIIIZmx1bmsuZGWCDHd3dy5mbHVuay5kZTATBgNVHSAEDDAKMAgG
BmeBDAECATCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2ALc++yTfnE26dfI5xbpY
9Gxd/ELPep81xJ4dCYEl7bSZAAABilNPQ3gAAAQDAEcwRQIgYDFI2kiUzSq37aJd
LguKG4UV2iCchbj/nV9NrsDLtZoCIQCv9PiIAxh+KJKV7viIbwIGkb5AZysrHxT0
Yuywe04TNgB2AK33vvp8/xDIi509nB4+GGq0Zyldz7EMJMqFhjTr3IKKAAABilNP
Q7gAAAQDAEcwRQIgbFxEvpSXkyqj0yk9X00otJ/mTNR6haBHT5lKyBXi5rECIQDa
El9fRw7q+l7kwAsVxT0rve1H1whee7ZeerCgKSysGzANBgkqhkiG9w0BAQsFAAOC
AQEAKgGwndg+BPR2mRF7Gca+cuvpM4hzM5mIZN+ZAx5AGnXGtEKDHODE4H4lUMag
QZ2WxppcwfIkosrSX2TlXkhSXeMKEfoRpkLXYnlOYKVEzPIH3f6AId0ITGaZ4JK7
15yxGN2gytmWf8zxSf51oZYI4rGFoRABh0uI9pcawuE5Qf0A5ODei/VtPRQ/Jhhf
bv7tJLyqtlIzTJKbBP760Hnrbg1U4+PELuG1tox2b+NOjhRv9TVfSuFp+OeSGSJA
7e8HkDmfSndUF84hNQflswy7KUxBSj80k7L1w6gP+E/RtbKloSbTOrXNQUWFjgti
K/DngIBOSN6gMuCcxdAPl09jEw==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArqAsi0VsrDpjcyI3xIIn
7PLzwX9jPb6ID03/kOvFKG/dJDLGBJafzd7GZkb9YeVf/B+fVEg66dG5p3Xfa8ST
cToel2V5kArOpMpPQF5wLyHLcm3JN4N7PTQGzld6gAt80U5voOcc0Yi1yoTu6d60
CvNs2DkYfVq1KuqITqry+uraF7m7Tar7IlIWEQxiomQRvnEAC/J1iSrG1uXvwVm6
wfPs5/hvHX9WL7/NhVKFTzWAo9w1qUdI/eyqU/W/silSQTPIs/EB1q4Dpr6ZhS+r
IV2WCaMlRi453tf+demUzFuGqtZALJnBVOY8bd7UberpM8x7DhqMfZDXcWc6rGo4
rQIDAQAB
-----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 281034198075037250139077009686717644850437
 . . . . . . . . [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 2023-09-01 23:33:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-30 23:33:37 +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 22044449807349989863874952384992629835532131631782737106744077318442455462832553498108475300085895795140305586920253741059725407039411722288521602602880589447078456522172867256291689528048334660929292077324039096305142626050456018164110918055687614549224000881304572481169876339352658127839159715275474164763698541306726795198300748418184402758645409509686885248241681264730487618832912982667722107786316968804476687664153693691973581145877126108699454881542324952189772705798655242550633249896620395337672802651402294016429144589401335358556580471540226340014686754409161651230698277526110579168876836377877094742189
 . . . . . . . . . . . . . . . . . . . . [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)
							30dd0dcacbc2b144ce4c8457b9cfef61aea2f308
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb4990000018a534f437800000403004730450220603148da4894cd2ab7eda25d2e0b8a1b8515da209c85b8ff9d5f4daec0cbb59a022100aff4f88803187e289295eef8886f020691be40672b2b1f14f462ecb07b4e1336007600adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018a534f43b8000004030047304502206c5c44be9497932aa3d3293d5f4d28b49fe64cd47a85a0474f994ac815e2e6b1022100da125f5f470eeafa5ee4c00b15c53d2bbded47d7085e7bb65e7ab0a0292cac1b
 . . . . [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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