itconsulting.cologne

Issued by R3

About this certificate

This digital certificate with serial number 03:41:69:15:15:84:99:02:6d:22:3f:b1:07:17:0f:f3:95:a9 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=itconsulting.cologne

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:41:69:15:15:84:99:02:6d:22:3f:b1:07:17:0f:f3:95:a9
Serial Number (int): 283594890059369258731318148751016942867881
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: d9:a1:7f:ce:d3:e1:b0:f7:09:d7:1a:77:b3:84:a2:db:11:bc:e4:53
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): a0:70:98:be:3f:6a:3c:a1:5c:a8:b3:f2:63:60:f0:d7:32:2f:f6:4b
Fingerprint (sha256): ac:7e:0a:c6:9a:ba:2b:90:4a:ba:6b:67:f5:5c:63:fc:ae:ee:25:74:2c:88:fa:89:b9:db:b4:a8:57:89:22:50

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

Revocation information

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

Check the revocation status for certificate itconsulting.cologne

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for itconsulting.cologne

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

itconsulting.cologne

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itconsulting.cologne
support.ti-medi.com
itconsulting.cologne
support.les7royaumes.com
itconsulting.cologne
helpdesk.itconsulting.cologne

Certificate

The complete raw certificate details for itconsulting.cologne in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0/4BxC20qv9ohqVQq8I/
FjeRmCvEYz6CWllTHSY4Ef9mgoXMMDB2NjwC+idasUBbwqrVtSdg0WjcQaQuLeHj
q/qWia4SxEr2WN1R4nUKA9CSqkBnUivRNs4G6fivLorvpfpEym7ppRYVruPjgQpz
J0rNX2VjBhvmQvyn7x39TNDvaN/Mdf+78AvYQgsFvuEV1bQy12qBfPNBPxcuOJNM
GhDbgGzS7iCM5PTzsF+m10JWZcxGybGvo87gvVFD17urT5mhKpuE9RohmXC0BQk+
KBEuMPkBLPzMsaMVav+8FyoKlFqxLXvhAkNpLhKGjvPmXYq0TJZEN8H8OxAIz4Og
fwIDAQAB
-----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 283594890059369258731318148751016942867881
 . . . . . . . . [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 2024-03-23 14:24:40 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-21 14:24:39 +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 'itconsulting.cologne'
 . . . . . . . . [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 26761537818414244888203064075037760545320874857647346346483876330592762988613869095908723851351021461874353542879418991729519086153865466451715979374582628318406065266150931072116403245836692908730901561061014732736552685378589517777719504830655936709224354945063232628152143587281816686928718286297207028045856458827570752887286140965971127644695307777512725227819710156289125524801132913066834506262684750375465246662089224849681152855315876024279599174407131896208303884063577276803147847772020440877812174746504111023701417379431438942729297590723872592520490322787818661812340930094645278365258699991720474681471
 . . . . . . . . . . . . . . . . . . . . [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)
							d9a17fced3e1b0f709d71a77b384a2db11bce453
 . . . . . . . . . . . . . . . . [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 (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'itconsulting.cologne'
 . . . . . . . . . . . . . . . . [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)
							00f0007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018e6be9fd6c000004030046304402207f8d4de0fbf0fdc94162e30f47c8eb1c6083c84a90361f3f1411de0a99baabf60220755af9f7905cd31fa8447cc6151ef0680ccfba20024fa3aff60cd74b2ded64aa007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018e6bea05490000040300483046022100d77adf4eb7e66a157481e4810e67c99ec14a170f2462b2329e78e32a72db2e71022100d30602029c7cf3fa8f84b29626d827d366e8871c118b66546c1734873addddc3
 . . . . [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)
		004cea785ae4032cac18165d71ed0802cf09f81788695bb262cf2184886f25f21d0245aac1ccc4eb073d21fdb4a0c180624b8bb537be6ca8c34c7cd0e26a443c1d54596cc3b62a6d722c402fe8c62d6c7299c4a28f458be2fa60e8d80f8e28c53a159bb046ccf25555e872ae77a1dbfa64fcecf6c6c44967927dfa69a6a8b3c38644813cc4271df024d873f13ef86e730a09b8d57300a980dcf276d81d3696fef260efe5139b1d1f8b81f9ca47d145125fd5edacab6bce79c39071790e027c0ac05232b8b0102bce8b864a6a319a5c89746f0249f06eaae71cfb98536d6d9f2588c0a7e52a74f0d49df025353ba0f85159ff126db3deb47e23d64dc9d5a7ab4cbb