cotreat.ai

Issued by R3

About this certificate

This digital certificate with serial number 04:e6:64:30:e8:27:93:a5:97:6d:4d:e2:18:dc:39:6f:37:35 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=cotreat.ai

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:e6:64:30:e8:27:93:a5:97:6d:4d:e2:18:dc:39:6f:37:35
Serial Number (int): 426847264857339155311629775642886616856373
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 5a:71:e9:66:6f:10:62:a6:d5:81:60:87:31:dc:f5:67:a0:24:30:7b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 18:7a:95:1a:ca:fd:0c:8e:b6:8e:fb:92:e1:29:66:b4:f7:45:77:a2
Fingerprint (sha256): ec:26:7f:22:3b:59:81:93:a5:1a:d4:1c:94:48:ea:07:09:e6:cf:f1:09:2f:1c:02:2a:99:bc:fa:39:92:4f:83

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

Revocation information

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

Check the revocation status for certificate cotreat.ai

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cotreat.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

cotreat.ai

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyPnXmuYq5U9ZbQMky4Lf
Qc/+waHWssN7sSkU6IUGhZPDl8O1fgGWQpsjlOO0WiwTbwcaFGAGpNouJZYkT1Xw
VCAUhPlkTilATDTDHzVmBFukA7cZqRSTT0CpYRepLeZE6fW77SbkyGkb9msrpWa8
cQ6GpicLP9+9DhJwuOjP98zxKc7sFYP0AGAvM9LvOyKiAEdbio/k8I3IlQVUn2lc
vBBC8I36GlXcz2ch4C6Ml9mJvLYtp60qta13e9FAJO+XvD9ScHtLVe6xO2qey7A6
E/OgBo8yLfuJaqM19avj4+M+5Pwq7BD9o4cjbwO5WI/bEmCzj5WXkL7F3gMDZ6KI
+QIDAQAB
-----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 426847264857339155311629775642886616856373
 . . . . . . . . [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 2023-08-21 06:14:23 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-19 06:14:22 +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 'cotreat.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 25370862777435865113155080428364033392597825078996738889144351602128562407549888091958055298326774749522436400915571034591644829856886328467693793847723466341522139002696555274552787552437640041881974539452805746838221745907127844739981991438119013004647511741177936112384351438557454741694264885064976339162788318707238298262504145745228543879720150434667036729418341163082588706575319529949988743236217042733932948905569352862419650437043878954779003499991386374153759790408587259986697725367188161752642023723381610639052443846782609426903875381865083410579432513486462123940280797338368589138099005743488984844537
 . . . . . . . . . . . . . . . . . . . . [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)
							5a71e9666f1062a6d581608731dcf567a024307b
 . . . . . . . . . . . . . . . . [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 (14 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cotreat.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)
							00f10077007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018a16f1dcdf0000040300483046022100994307bbce2f1e5be45f7c561297c98feedf5a545e5413b0bc38a8bb1d43cfd0022100de0a618be33d184f695095005b5410274c540d4ec590661e1a44f3969235cc19007600e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018a16f1dcdc000004030047304502200cf9e2f43c1b89a8719804c3c43f1c5cd8b5ef959a97253ab137d1a82242e4ac022100d180a41a94622b0c0483101c487261c433dbee6443387116de0c435745b91cf3
 . . . . [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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