www.customfit.ai

Issued by R3

About this certificate

This digital certificate with serial number 03:5a:1c:3d:90:04:43:a4:6f:91:6a:7b:d0:d5:54:0f:1d:ab 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.customfit.ai

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:5a:1c:3d:90:04:43:a4:6f:91:6a:7b:d0:d5:54:0f:1d:ab
Serial Number (int): 291999808853160379782757235897211946999211
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 7d:19:cb:b4:0d:b4:64:63:72:fb:62:c7:0f:18:02:46:64:45:93:ca
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 57:0c:99:30:bd:c7:9f:0b:9b:69:c5:7b:82:63:3c:7f:d2:85:8c:81
Fingerprint (sha256): e9:f9:dc:e4:93:6a:cf:18:50:56:ae:0d:c7:b7:95:cd:4e:1b:35:7a:00:9e:be:f8:aa:5f:ea:45:9a:7a:fb:b9

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

Revocation information

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

Check the revocation status for certificate www.customfit.ai

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.customfit.ai

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

www.customfit.ai

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Certificate

The complete raw certificate details for www.customfit.ai in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkhal9GogAeMvVv0S/+/d
lOXpIizp0Kwo8g+hdw/Fl3a1kC+ogN4tS4nC23dkcR6NOIH4uv/E8jWTFuEhz/8p
2qBM+AnR9X/cm2dV5mkS6mfcgViLWLYA1YktVroveEV2in4LbMW2InVTawkvz5eo
7VUiG6++uSoNk7L22q1fUDPxPNg1sLPdzedY7Aa6D2Fy/3nJY3TtAIZc5W49rOC6
y3EGoeAtFZ8rWrDQXTBJxCxUheoXNSyl3i+bs62IsZ94OPwc/srudcNw9jCx96rX
92wTc3iqHoYhTYx2WSEWiA5QmI+2YePpbF8MqFJN9wEBvqT2sGU3jyMibQEE7IIE
RwIDAQAB
-----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 291999808853160379782757235897211946999211
 . . . . . . . . [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 2023-08-03 23:19:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-01 23:19:17 +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 'www.customfit.ai'
 . . . . . . . . [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 18441960798652885988231420872665325837768898643225493911040662151610739449908924464766163240140135329975139807633686248582833338015014166210200417626287010901823690910766878111672939697621440705325182923160586520206835194455203340254614214670096757122563470024491647063953107062675997548078118842946746366662722805717032910677050021260776383973926103953555354454081882683885704656474529929008001181354281739235985099789142549215048127664596007187199439296717391394631351946338637576699500899099762458186185606635718994102194688799346846774569547609719220959470447254334158942234159982659673100870516216389615269053511
 . . . . . . . . . . . . . . . . . . . . [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)
							7d19cbb40db4646372fb62c70f180246644593ca
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.customfit.ai'
 . . . . . . . . . . . . . . . . [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)
							00f10077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb5200000189bde9b89c0000040300483046022100c4bbc0a3056b8d85828bc0a07b227e69cb01bbc9b6fccbfdd79465d457fb63580221008b88d19cab6d49898e79f0eba41f64f6506925ac3416f01c5cb5efba7d1441ac007600b73efb24df9c4dba75f239c5ba58f46c5dfc42cf7a9f35c49e1d098125edb49900000189bde9b8960000040300473045022100f405b38d6ecb4f1f85e44410570487a33fa57f8561e2184389fe053942acb47a02204a6fb29cdafbe07cbd26480f0f03bc6b772a14161498874fbb93d0e73da7b74a
 . . . . [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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