umfragen.brede-consulting.de

Issued by R3

About this certificate

This digital certificate with serial number 04:76:36:c2:98:06:0e:1b:b6:30:f1:a2:4c:89:8b:9d:5e:c3 was issued on by Let's Encrypt.

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:
  • 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=umfragen.brede-consulting.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:76:36:c2:98:06:0e:1b:b6:30:f1:a2:4c:89:8b:9d:5e:c3
Serial Number (int): 388675251724480661510518216237192119672515
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 37:92:53:d6:b3:f4:90:81:d3:e1:6a:9a:d1:5f:42:0f:14:4c:64:e0
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 3d:de:bb:18:94:cf:07:b2:ff:c2:66:cb:cb:04:67:c1:c3:11:f8:e4
Fingerprint (sha256): 66:2f:d0:4c:b7:b2:3f:c4:9b:9d:4e:72:ef:9f:33:b3:d2:88:22:8e:de:c7:9e:87:69:1c:31:a0:2a:4d:80:18

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

Revocation information

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

Check the revocation status for certificate umfragen.brede-consulting.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for umfragen.brede-consulting.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

umfragen.brede-consulting.de

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Certificate

The complete raw certificate details for umfragen.brede-consulting.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArJsHPj82LhK4wi6rXyUv
972/6Su+jv1Mm2UNoIAfp8QviU1r9M8IuFEdFdEK5pYwdRjtbyAaXtP9S5ww9DiW
GJQ7R3QMKgJtUwzw4WT7XLxk7HRA13Ora/eSqQB7jYki2Oq6dBRpB8erav/yX6fi
UOll7YpHpNj1PgTXjsBIaUwQ9wRdfPIc5lvGfMFS3qMOQ2Z+cZszehA69/SmHKzr
NqoJWwmv2CWDWdUPGoYB/l9Q/oeDX0cdIYatx7uP14kFnkJ5GolWnvRPvVgnaGeR
AlL/BTv5OXFfeEr/fcxh8AdTLdQGeP/gsD5aTVfMmZl4kr/DDwjiB4DCYRCHLBJI
KQIDAQAB
-----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 388675251724480661510518216237192119672515
 . . . . . . . . [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 2024-04-03 23:05:59 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-02 23:05:58 +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 'umfragen.brede-consulting.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 21789435754947734805487494801244363460593869036577103887554590373520041067990664331880113797202796257011031725871470697078720412749075287499503731015610550376119643939710898712987903055769867003526816830059979713353306017248752999305206892465471867148902390472903004405124363124812342329411715989648956057559281174843016232391456992658161868195177022467767318297562747221007023693018727581256040988774796342593207153374571346965768736019292285245822315961435839875528037553261692982791328183645349606032875559904231480897785639435532899935403166924084811765585830046989727293617070200652269434532090128966142443800617
 . . . . . . . . . . . . . . . . . . . . [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)
							379253d6b3f49081d3e16a9ad15f420f144c64e0
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'umfragen.brede-consulting.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 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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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