b2computer.de

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:d8:c1:33:db:87:93:22:ff:a5:21:08:e2:ab:97:26:12:c6 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=b2computer.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:d8:c1:33:db:87:93:22:ff:a5:21:08:e2:ab:97:26:12:c6
Serial Number (int): 335094659313118763833952762878429038514886
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 21:dc:0f:c1:40:f1:bc:e0:b7:44:ff:c4:5b:1f:50:5f:ba:f5:c5:d5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c5:ce:0c:d1:31:4d:d2:56:59:e8:f9:23:73:37:61:92:bc:08:01:e7
Fingerprint (sha256): 3d:af:f3:b1:9b:90:c1:38:e4:2f:25:f9:31:6e:3b:98:13:41:11:38:a1:4e:57:aa:95:2c:75:fb:32:47:17:39

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate b2computer.de

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for b2computer.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

b2computer.de
www.b2computer.de

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sni.cloudflaressl.com
www.b2computer.de
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b2computer.de
*.b2computer.de
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*.b2computer.de
b2computer.de

Certificate

The complete raw certificate details for b2computer.de in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuMCkZj8FzVktiLLht5a9
Ddl02SC5i09mL7mGGwh6+p5j6GKcKE1t+x8mDZD+iJ2hyCR1pgd21JS/NMRxjRRW
iu+YtshNlyynRkxShFtSI1foO1fycYL4KiQDYOndzpZOX9xOmWrjFKnVOrUkhK/a
4lrjoqlvV4atrwVMgjLd6DVNGEFMkLHQBDU32cqkTfaUXAzr96mHNnZA+JXN9xlp
ivu1mXqY4oQvhps9/XvwhJ6NzbR7gCW+kdtamgBYk/Ihk/n2SGPlXAJ4ebf8tLJU
UXsnk4yt3H5vufdjydLYV0XNMYI923QPLWLdp1zeCZnoJ6GVQ+C5Fb5j6YtRqPV3
GQIDAQAB
-----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 335094659313118763833952762878429038514886
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-23 17:57:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-22 17:57:09 +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 'b2computer.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 23322843515780814795292256615565700285284169607979100389545031291397495841838248038351906782106899800316407917887959138409821323243202342696220067645639487283378948825618809567835876029783565108844207640280831290818224010382995564420012686966512287107449005524684955860096128145162815987426573807258089071773710188855251513016528723088603929843602016697748605231462618259399923922683533367291032102153516032637864855712959371016450059234621049729830021941069398891239653177913065130073880815226939716582286447761581174780313784709964593245651953730375687618928107140789175010559643546981516798045364232326724382455577
 . . . . . . . . . . . . . . . . . . . . [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)
							21dc0fc140f1bce0b744ffc45b1f505fbaf5c5d5
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 'b2computer.de'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.b2computer.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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f341ec78e000004030046304402204d55dfec40c428c2cbd9bac6af1b4c05eeea4daba4ef629e7ca0872349c0eb9b022048ead1864371259d2f1293dacd0886bef5357edc3161c2a0b7fb332597878e7900770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f341ec7ae0000040300483046022100db11cba674506da02e3f046485dcdf8a99373231de2501824b09e78806f770a5022100de9ddc275ea3cc57744a8370afe65556c7bc076405a38bbcd71900cbf612e247
 . . . . [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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