support.ebf.de

Issued by R3

About this certificate

This digital certificate with serial number 04:53:0d:43:42:a7:cd:da:26:66:30:91:3c:b1:72:d2:92:23 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=support.ebf.de

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:53:0d:43:42:a7:cd:da:26:66:30:91:3c:b1:72:d2:92:23
Serial Number (int): 376710209381247449928823989438577372205603
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 0f:d4:17:27:0b:d0:5b:30:a4:da:55:54:09:90:dd:93:cb:01:ce:f2
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f2:2a:4e:13:c0:ee:aa:b1:e7:41:74:3b:7d:aa:f1:fb:e4:b2:91:46
Fingerprint (sha256): 42:01:d1:1f:ca:b7:1e:b3:50:b6:c2:ca:66:17:88:85:4c:93:24:42:ec:6c:53:a3:11:6e:dd:33:99:6f:0b:89

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

Revocation information

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

Check the revocation status for certificate support.ebf.de

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for support.ebf.de

Public Key Algorithm

RSA

Key Size

4096

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

support.ebf.de

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access-sentry.telekom.ebf.de
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*.claas.ebf.de
*.telekom.ebf.de
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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 376710209381247449928823989438577372205603
 . . . . . . . . [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 2023-11-27 23:25:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-25 23:25:08 +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 'support.ebf.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 853959608648492274336121722135255892730844116404557721945065168528091947708829290720931846925313248402396047214326956471737608846128728492303303048246764351860658903962884182931725970831114204835008450828434437048897453095913235189013088643806268322005418913824061952526129698794781265944774319867917047070735697733690041783356884868932505498821133346295706701622539942106111773276618185570712267593438460784456837741016794618831954864488172655929318846828219182411447776766248987239643900730493334682025353333482332220185775758923950149831446889117966666550153623738545154777300530775531715247474604169231624848127174013175628799003213526691782130779543151023864578506054697254427459160203719281803562468874546950946918358765419131266968353748473788483263955548470130796603377897456669589522950498753765490187605789772196646223886518455388075388528543788661250575642015979453458574973781454043158346334453353542339708865147190885971538545681874488842513947939752356370535683602874096472854110296512633812869499238163367513518697582209407859454884746346084810397851741562240526657973787215265909448668751559895521774160779788662298558055349191748760169955519549616150161833155568911210193853570222666111817771067202960131918270453159
 . . . . . . . . . . . . . . . . . . . . [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)
							0fd417270bd05b30a4da55540990dd93cb01cef2
 . . . . . . . . . . . . . . . . [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 (18 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'support.ebf.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c1350c6de0000040300473045022100c8d83e61625669f5194fa3cd869d02d0d1822dfd15aab0059f5eb78b273d3e8a02201edf58cc3e9426afa79b24afe7e4351f339678e2cfc3b70ab4bc430ad088220d007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c1350c6fa0000040300483046022100b859a56f74233efd075f4fd3bc50a95360444e1ded455eae4bb515bedddc91c0022100ef2826035e474c3cf0161487fc06da3c7e08ecea30f6b54bd08f941c979c7ad6
 . . . . [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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