flatup-app.de

Issued by R3

About this certificate

This digital certificate with serial number 04:10:a0:a0:c4:f3:75:12:1c:e3:a3:eb:9b:f6:6e:7e:9b:3c was issued on by Let's Encrypt.

With 2 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=flatup-app.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:10:a0:a0:c4:f3:75:12:1c:e3:a3:eb:9b:f6:6e:7e:9b:3c
Serial Number (int): 354107172839239911563927737434367407856444
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 8c:55:dd:d5:1a:54:46:60:fe:c5:de:0b:6f:77:d6:5f:6f:9c:dc:7c
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 40:c8:dc:c3:40:21:70:1f:e9:c9:59:88:1a:2e:f0:40:40:d5:ea:83
Fingerprint (sha256): 93:d2:3d:d6:2c:a2:8b:3a:36:e6:3c:97:56:31:9f:79:92:c7:d1:de:3f:fa:f2:67:c2:40:fe:36:de:56:d3:98

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

Revocation information

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

Check the revocation status for certificate flatup-app.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for flatup-app.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

flatup-app.de
www.flatup-app.de

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqfWaCRiHifM+NpP1uVSo
XtEUTrFRS9S/6MfO8cUO0jPVcNfJ7JFPV6Zwlp0Rya6NI0DkBoUwrD2m8EC99In5
E4qfaxcHHQgyLzrq8LduENTCt/ZydeNijo/dlx9IvWgYemEzeoWM4dY1YMeuug14
3//XuDPBGAtSmzgEW91BM6+IU7n+dIubc8ESsCfENGg4eObFvrSUoax4//QRxYu0
O5c6L23uMjV2hY9JLFdb94SgOjcUYX1kYzpLi6BtOTrEdamDyRxudUJl8co1J/28
ax3viL9MNrJgFsKojv/CHEaRvPME5ABnUg7vNVWdtErDGd0fHBWiDPUTuOoqskm5
bQIDAQAB
-----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 354107172839239911563927737434367407856444
 . . . . . . . . [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 2024-04-10 22:03:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-09 22:03:14 +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 'flatup-app.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 21455384252028663541533340587822249913223521356623803169867565888793923417505146968121915594978985598828247547696824458538657374998452631776302929015313277758697404245684629933807898250987922398870323139518101061415629171025049781240107377162850481324860835409792551448448230735441816617453579917605620096631643959133128576459481132825438521939770938966725276598746188073389597396534935774623053664765876091499392135990200433888115987902902570219657293294220151422985078441400373395288804535815566599361818961019617032174981840322838029848395066103461262029483326319390059360387433703230740005187827115410328444844397
 . . . . . . . . . . . . . . . . . . . . [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)
							8c55ddd51a544660fec5de0b6f77d65f6f9cdc7c
 . . . . . . . . . . . . . . . . [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 (36 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'flatup-app.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.flatup-app.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)
							00f000760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018eca404db30000040300473045022100fd2997b4aead4c2618e91653b83bea9331e936ca50174a0c8b40692be69f91fe02204b44fec9e16fd237e9b64d46bcb86966a1dd1c824ddc4d25929fcad4f9f5ee7700760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018eca404d900000040300473045022060345ca84e9fb7a99d8a4a40b7fc8324a7d5a4259f8acc5359a422bbccb69b66022100a56f14dff93a987ef474a451a3b0eb5816ecd265fcd8d510e336e204622e6148
 . . . . [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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