knowingcompany.com

Issued by R3

About this certificate

This digital certificate with serial number 04:e3:f2:3a:dc:d3:89:91:f8:55:e7:28:85:3a:75:3b:47:83 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=knowingcompany.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:e3:f2:3a:dc:d3:89:91:f8:55:e7:28:85:3a:75:3b:47:83
Serial Number (int): 426015219825181593461124964578440930609027
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 6e:a7:bc:12:07:e6:7c:6d:6b:51:f2:cd:a4:02:f4:46:26:6b:a0:7c
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7b:5c:10:47:da:3a:84:cc:d9:34:02:61:57:36:28:96:74:78:a7:ca
Fingerprint (sha256): 81:06:5e:a9:91:c0:b9:f9:9b:f9:6a:9d:58:6b:90:d3:a8:91:e8:46:9a:6e:f4:24:15:4c:b1:af:39:5c:af:c9

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

Revocation information

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

Check the revocation status for certificate knowingcompany.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for knowingcompany.com

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

knowingcompany.com
www.knowingcompany.com

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Certificate

The complete raw certificate details for knowingcompany.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFCDCCA/CgAwIBAgISBOPyOtzTiZH4VecohTp1O0eDMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yNDA0MTUwNTQ2MDZaFw0yNDA3MTQwNTQ2MDVaMB0xGzAZBgNVBAMT
Emtub3dpbmdjb21wYW55LmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoC
ggEBANZLOaVvTziwl80YUPcwcM34sPL9tPLb4XxECfHRT+UhXljeBvu/spYFSLNe
YA6eAwmg987v6e+a2HQ03z63zV9wnT7+BAEE5yay/rujn+lWa3sfm6KtejvecMXu
KCVPVpzhrX0BBHfJo5OH3DOIeHAMOCEd9Ld9xRmu4UBDaS91eiR15jUOEDefGBqK
L7/Fpf1jVE0wRYBkSBCDb8JtxqL/E41heszbPk70D8WLpXwv6T9LwmmDUpQlePhP
FDUE8NOlpiqypS4/gusDkv8d6D1TZsPVQCX1O4DzJyqeug/II5bysfYg/A7KR7HL
+UMbBDsnbXdnQbZAaHv+EMv0Z4UCAwEAAaOCAiswggInMA4GA1UdDwEB/wQEAwIF
oDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAd
BgNVHQ4EFgQUbqe8EgfmfG1rUfLNpAL0RiZroHwwHwYDVR0jBBgwFoAUFC6zF7dY
VsuuUAlA5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRw
Oi8vcjMuby5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNy
Lm9yZy8wNQYDVR0RBC4wLIISa25vd2luZ2NvbXBhbnkuY29tghZ3d3cua25vd2lu
Z2NvbXBhbnkuY29tMBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBAwYKKwYBBAHWeQIE
AgSB9ASB8QDvAHYAPxdLT9ciR1iUHWUchL4NEu2QN38fhWrrwb8ohez4ZG4AAAGO
4IF81QAABAMARzBFAiEAn4PknKwatVwTgkSRzW8MDRFM4izB8Vx+ml6fjBnisoIC
IAusr0xV08bjYqdrmCLmpVzW1HiY/XszNEuHtY8nn52HAHUA7s3QZNXbGs7FXLed
tM0TojKHRny87N7DUUhZRnEftZsAAAGO4IF80wAABAMARjBEAiAowkQfn+YGeqZX
YJRAgGAYtGz8H06Km8KxeoifG+2VjgIgavu8ehiCjWoCZ2zWp+XpVWHlYaPiinlw
LhwtbUVoKJAwDQYJKoZIhvcNAQELBQADggEBAGfzvlurUCTgsZcbhcVHx5ZkPbAJ
9ALZ7Uif8BbUkpc8tnDinWSRxRP7lvfYBw9iykXbngomsNFZE3ayWdmE0RLdlR7/
ZXMtlvopXCylvHjLbDvTkAjN5GdalMJtASIanZHyhcffs7RUdlXgdIMUMVmhWoPa
Rta/9WreLJxMldQ85HDFlOEBDvY+tMyZ7s11/dIHmwUdMTfg1fT84sq32y5A5TCD
+LHF4GEL/v61w+688IaEAYclosYw4e1ABX6tanPv0xfU3BHEal3hbWWDy2ZzeAEd
LMlogCs8lhqRz2fQbrkAclygrstc4W1PZwmyMJIftQOvcuiEnsk1TP++nmo=
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1ks5pW9POLCXzRhQ9zBw
zfiw8v208tvhfEQJ8dFP5SFeWN4G+7+ylgVIs15gDp4DCaD3zu/p75rYdDTfPrfN
X3CdPv4EAQTnJrL+u6Of6VZrex+boq16O95wxe4oJU9WnOGtfQEEd8mjk4fcM4h4
cAw4IR30t33FGa7hQENpL3V6JHXmNQ4QN58YGoovv8Wl/WNUTTBFgGRIEINvwm3G
ov8TjWF6zNs+TvQPxYulfC/pP0vCaYNSlCV4+E8UNQTw06WmKrKlLj+C6wOS/x3o
PVNmw9VAJfU7gPMnKp66D8gjlvKx9iD8DspHscv5QxsEOydtd2dBtkBoe/4Qy/Rn
hQIDAQAB
-----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 426015219825181593461124964578440930609027
 . . . . . . . . [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 2024-04-15 05:46:06 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-14 05:46:05 +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 'knowingcompany.com'
 . . . . . . . . [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 27052092181829456368175323793968809413948939305437034511343657387682469615104776229203881432279746744017288689111910223336305487286349962362196029544021546665796028358494794423706076981442817349945361804050709453449482969038606068274992875518097790104618441633444851836356476917091481147904595726317017506305371878319704542849980668932820630053988140405821842066412229267601505918384686485841192768444113700062253144709292347272580104322983498939152787395636065345111629683083097740863621447896489349631296338479496792892487609268195849978081542883558305575462121178744240230579835087757439434444034986922686828275589
 . . . . . . . . . . . . . . . . . . . . [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)
							6ea7bc1207e67c6d6b51f2cda402f446266ba07c
 . . . . . . . . . . . . . . . . [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 (46 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'knowingcompany.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.knowingcompany.com'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076003f174b4fd7224758941d651c84be0d12ed90377f1f856aebc1bf2885ecf8646e0000018ee0817cd500000403004730450221009f83e49cac1ab55c13824491cd6f0c0d114ce22cc1f15c7e9a5e9f8c19e2b28202200bacaf4c55d3c6e362a76b9822e6a55cd6d47898fd7b33344b87b58f279f9d87007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ee0817cd30000040300463044022028c2441f9fe6067aa657609440806018b46cfc1f4e8a9bc2b17a889f1bed958e02206afbbc7a18828d6a02676cd6a7e5e95561e561a3e28a79702e1c2d6d45682890
 . . . . [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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