app.guj.de

Issued by R3

About this certificate

This digital certificate with serial number 03:e0:f4:8d:8e:62:28:ee:94:7c:7a:3b:d4:8a:6f:32:10:72 was issued on by Let's Encrypt.

With 5 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=app.guj.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:e0:f4:8d:8e:62:28:ee:94:7c:7a:3b:d4:8a:6f:32:10:72
Serial Number (int): 337885174618278720110231233261209216225394
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 11:9b:13:d9:11:a9:fe:86:7c:7c:3f:3d:0f:d6:d7:d6:19:fd:8b:05
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 41:d9:cf:6c:37:6e:bf:1b:85:e8:30:15:7c:6d:a2:ea:51:5d:ff:18
Fingerprint (sha256): 6b:49:9d:3c:f1:bc:f0:09:31:b9:5d:60:36:80:32:51:0d:b3:03:01:84:46:af:e4:d0:75:53:80:95:67:37:05

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

Revocation information

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

Check the revocation status for certificate app.guj.de

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for app.guj.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

app.guj.de
kinakoni.de
stage.ck-mag.de
stage.link.eltern.de
www.kinakoni.de

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Certificate

The complete raw certificate details for app.guj.de in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFJjCCBA6gAwIBAgISA+D0jY5iKO6UfHo71IpvMhByMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDA0MjkwMzI5MDBaFw0yNDA3MjgwMzI4NTlaMBUxEzARBgNVBAMT
CmFwcC5ndWouZGUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCYn6dT
NWNEZDpj2mck55ejbGlchvljxPn1LXgAtTPec6jUd8pf9a3fma+Y7DWPdLPagmb5
fjBaLSD9pWFZSgb13M6okrn0bEHAntbOerqy89fJoo19aIWOgzCt2JIJ/VMYtc2L
4CW84+m23Ns4a9LWOkQ6mnicFtReCde1a5rKu2ZyBzXeQ4iQaUjFuBHeD3MgZWt4
hqfldH/EjHoO5sV0lTWX5LfeuRgUrjWUuX8cwwI0RWswqQIiCdMSxYLeqdtUX/M0
xErnnxGQ67RTE5B72eKF3aTYD2fQhmEsCs7/dIYvx0BnV7xdBfyfuastLN9BnqP4
0IJy9GG8Eg07xd2ZAgMBAAGjggJRMIICTTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0l
BBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYE
FBGbE9kRqf6GfHw/PQ/W19YZ/YsFMB8GA1UdIwQYMBaAFBQusxe3WFbLrlAJQOYf
r52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDovL3IzLm8u
bGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5vcmcvMFoG
A1UdEQRTMFGCCmFwcC5ndWouZGWCC2tpbmFrb25pLmRlgg9zdGFnZS5jay1tYWcu
ZGWCFHN0YWdlLmxpbmsuZWx0ZXJuLmRlgg93d3cua2luYWtvbmkuZGUwEwYDVR0g
BAwwCjAIBgZngQwBAgEwggEEBgorBgEEAdZ5AgQCBIH1BIHyAPAAdwBIsONr2qZH
NA/lagL6nTDrHFIBy1bdLIHZu7+rOdiEcwAAAY8oHQGpAAAEAwBIMEYCIQCcIjPo
FvLZU0GWshdhwhqi2jVNYnXG3xntCY2MyiLEdwIhALyNKlTd/9woKROwhEgmxCiE
iA7A2L4k/OPu9IHvGEb8AHUAPxdLT9ciR1iUHWUchL4NEu2QN38fhWrrwb8ohez4
ZG4AAAGPKB0BuwAABAMARjBEAiAc7JMUudCKVhSAXJj3m2t3BL5jG72Zt+nOSke4
IoU2BwIgTrh8SlloPi+63JZvNBcrHauLeL5autSndDnPuw5+5sYwDQYJKoZIhvcN
AQELBQADggEBAGs7pdyjrrauaFg3Fc2sn21MqLXDW3CfJAmlef7XtI15hX+csdBh
IdJvGSc8ZiAdF0nk8KCNwpmayDghn+vl9ur1ZwjRuIbjdzV8DTHNXzOq4SWbS/Qt
RxwDg/ZOdJfl3Wq3UGcxNOQoLA3N4esq6A5+4SO2lnTtL9VDF3hzW/3jQoG9Au59
pPI1kgjBRFprgOy3O7Edw7rtNJU4t/kM7YCTiLsUk0bkMfS1JlnisbE6EuAXC+9v
tzcNvnvnnUayKb+7wfQBbPKVlHGi0EOujXUBu/ucMpPUfi8KCIWlS4vklGMeqbHy
f3nYINbHWp5r9qduYfZXmsQ+f1tDlvDr5dY=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmJ+nUzVjRGQ6Y9pnJOeX
o2xpXIb5Y8T59S14ALUz3nOo1HfKX/Wt35mvmOw1j3Sz2oJm+X4wWi0g/aVhWUoG
9dzOqJK59GxBwJ7Wznq6svPXyaKNfWiFjoMwrdiSCf1TGLXNi+AlvOPpttzbOGvS
1jpEOpp4nBbUXgnXtWuayrtmcgc13kOIkGlIxbgR3g9zIGVreIan5XR/xIx6DubF
dJU1l+S33rkYFK41lLl/HMMCNEVrMKkCIgnTEsWC3qnbVF/zNMRK558RkOu0UxOQ
e9nihd2k2A9n0IZhLArO/3SGL8dAZ1e8XQX8n7mrLSzfQZ6j+NCCcvRhvBINO8Xd
mQIDAQAB
-----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 337885174618278720110231233261209216225394
 . . . . . . . . [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 2024-04-29 03:29:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-28 03:28:59 +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 'app.guj.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 19266950485851821522865193091721969899786174877527927734505667176297476154228561297053427235641328689520139647537070791376350298033918932074524416481169783904831265976052383238112563300031851084399850171391189208072139772903109838388636977637200838321565613818851898099049254743299418558489755168194380781774678283362612223652642973142590273133781377010765891343368722516034694358341316615520656542706074370536999327301113901810030035986813472613459720189794812550373551534446825901984354240106098017315830494675469703507110455597312028484409084790422747571954765702652922642642954745206368036185081954038567527636377
 . . . . . . . . . . . . . . . . . . . . [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)
							119b13d911a9fe867c7c3f3d0fd6d7d619fd8b05
 . . . . . . . . . . . . . . . . [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 (83 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'app.guj.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kinakoni.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'stage.ck-mag.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'stage.link.eltern.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.kinakoni.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)
							00f000770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018f281d01a900000403004830460221009c2233e816f2d9534196b21761c21aa2da354d6275c6df19ed098d8cca22c477022100bc8d2a54ddffdc282913b0844826c42884880ec0d8be24fce3eef481ef1846fc0075003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018f281d01bb000004030046304402201cec9314b9d08a5614805c98f79b6b7704be631bbd99b7e9ce4a47b82285360702204eb87c4a59683e2fbadc966f34172b1dab8b78be5abad4a77439cfbb0e7ee6c6
 . . . . [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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