customfit.ai

Issued by R3

About this certificate

This digital certificate with serial number 03:f5:24:e1:4f:47:de:af:6a:9c:51:0f:cf:f2:d0:73:07:c9 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=customfit.ai

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f5:24:e1:4f:47:de:af:6a:9c:51:0f:cf:f2:d0:73:07:c9
Serial Number (int): 344755059773556566760687316746126903936969
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fd:6e:a8:40:85:0c:6d:d4:96:80:d4:4e:e2:b7:f8:b4:69:79:5a:fd
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): c1:b1:f7:dd:e6:9f:3e:05:d8:88:b6:fd:3f:6c:93:ce:54:06:80:9f
Fingerprint (sha256): c5:fa:b8:30:43:27:34:e7:32:7c:1e:2b:91:cb:e9:87:c2:50:50:4a:30:87:ff:00:c4:0f:96:f3:de:d8:f0:af

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

Revocation information

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

Check the revocation status for certificate customfit.ai

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 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

customfit.ai

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqxq0P0WQHzoM4ImgeG1U
LZvPEz13zEra0Sh7TomNYhdtJsrZr9pUD7+/0tXX4q1q84RqH7ERvj9KDLsGo37j
3ThGuatFf9XdDPcZfbjCbxg7/qpcpNFwI9ZFMrEdN2x8FFiRb/mYwCP/VDLFbfHj
iG1HftN6CSduK6U0aIJJHed/rVJ60dhjFmHhSOdpb5aRthCDoMMPsITakwm5jvvS
uAetN87kphH47IeBzF25WQ1vKAtKDeToGqT9ruBfpY3+z62X4O56Yc8bcIToXjNt
3xGT4eiHRLIk5Txy7vg+4q0HKQ73XDnzjmk5TyFd1OQFLYRQK9a850Io4NeScGPm
uQIDAQAB
-----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 344755059773556566760687316746126903936969
 . . . . . . . . [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 2023-10-21 00:12:04 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-19 00:12:03 +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 '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 21599918426985347564574254699253983841249228506841531389724845383639171416505800023843596916480018740106936670207157933442942765098475852026400845946281849359090019396715069978285569705713236866712927463076371424953596673771912649773098461700322747285943658626123099429081497608003250607175292501140863357398534741784858624904908864382199444854968871018512360864900593132629788829742418714920164785806959960814720635061071219481628012957996634380030892654209086988549308640214614930812420015739580841476337492244839964607287987543638623168485061213232313908729885085857814677791103805353256645349606466004401724319417
 . . . . . . . . . . . . . . . . . . . . [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)
							fd6ea840850c6dd49680d44ee2b7f8b469795afd
 . . . . . . . . . . . . . . . . [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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b4fca100f000004030047304502210088db43468536697dab18709184cb6faabb6957c4e30264720465b4c366d4110b02202179d04bd52964f34c209ed0cdd2b668f7c7326755c088d4e4a070712cfa19ce007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018b4fca100a0000040300473045022100b554f0a3dc68959c1d4f87b98a2a93b376710751e725369d761912f472ef87a80220305fbef514f47d9ff83671b3b93bf2c69cd4f354d5230ea398a81b2141539bdf
 . . . . [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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