forum.computerbild.de

Issued by R3

About this certificate

This digital certificate with serial number 03:d1:6d:3b:39:7f:f7:6b:e2:34:05:4c:84:78:cc:35:22:18 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=forum.computerbild.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:d1:6d:3b:39:7f:f7:6b:e2:34:05:4c:84:78:cc:35:22:18
Serial Number (int): 332601065845047985456853383412457135219224
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 2c:fc:9b:97:89:b1:06:c9:32:4e:e0:23:c2:fa:29:5a:e2:c8:85:18
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 34:e8:21:b2:cd:4c:ee:18:16:29:cb:48:0b:af:43:76:7c:1e:a1:66
Fingerprint (sha256): 08:59:a2:67:3e:de:b1:ed:91:be:9e:16:f0:14:fd:75:27:16:b4:10:60:07:ea:68:f0:30:10:88:66:f8:af:66

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

Revocation information

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

Check the revocation status for certificate forum.computerbild.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for forum.computerbild.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

forum.computerbild.de

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Certificate

The complete raw certificate details for forum.computerbild.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyQWYOkUGqPEMtI7D6XI0
WNuXcolFMb2Op3fsUKK/caZ8jj2I4s8ne6NDHPO/dCZjbqA6Kwz9r9nMcEDjvEBY
wrTXhGEItrmEE04veBZi+Q+WjFQyBrz+jBMsnhuxFAacRZgW4+wIZh5AIiarhaH6
gD4wYCbdbfdFGepzx8VVOV5w9VA7fpTZl3hXAiQ6C48Ew6d52Tk1L3cZQC0YxlJz
cM/RLPiOBSBym6OvnUSLruuRWh8zWN0ClfQoatQ4mna5cwnXeZgYTGpWMnBpIDru
RNBPD/6OBESI1IFGT16SuIb70DHv7TOuvbq0qOZvHX4JszJ36Z975K2MH0os6gVb
SQIDAQAB
-----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 332601065845047985456853383412457135219224
 . . . . . . . . [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 2024-01-15 22:56:50 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-14 22:56:49 +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 'forum.computerbild.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 25376658117552451803684371098690064199323267193349388224201163030043558103315252107718440210048845100803364256472865355560119360001994046893306668814563017876932252151920530772542493474933869038116798198570197392131660236797957259585301235968091962796572511837801877209583999891850686026132128943666514447943302623943113354887467085892937694863519444785839458462488319535626102474409567575043096649072127478318463813992941287496043127806429040492524797256873973955035013793536685946998822462351911156324910291746149784309428487335784353191125065865902885388155686919452937955944872889851665792901617663509605164342089
 . . . . . . . . . . . . . . . . . . . . [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)
							2cfc9b9789b106c9324ee023c2fa295ae2c88518
 . . . . . . . . . . . . . . . . [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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'forum.computerbild.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)
							00f0007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018d0f8e75a500000403004730450220520d5bcfc0e8560d827ed732df5652ccfcb8afaed4c478cfc9be8c923b2b7d37022100a8307b96b7ccfaab68590f4c6e50471a9973faec54772da9cc8befbae4b17356007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d0f8e75ad000004030047304502204775b5866c187ed24d467eb1e769792ae59ec280f6f64d577801d99f706d2351022100c61d997e25feed012439f0e4e9f1d1084dae75e88acc4db0b8766b4af3f4d3ce
 . . . . [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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