ckfr.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:8f:f7:24:7c:3a:71:0f:5f:12:19:71:b1:a9:5f:51:aa:83 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=ckfr.org

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:8f:f7:24:7c:3a:71:0f:5f:12:19:71:b1:a9:5f:51:aa:83
Serial Number (int): 310325745022269736357126395881993557617283
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 1c:aa:d9:da:50:2e:2d:9d:b9:e8:d4:e5:5c:a8:d0:1c:5a:d5:6a:12
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 87:5d:1a:85:9a:8c:6c:82:f4:2a:54:2b:fa:4c:9f:89:eb:d4:96:89
Fingerprint (sha256): a2:f9:70:61:17:af:e8:2f:5f:20:ee:81:2c:ae:27:bf:6b:74:bd:ef:c9:16:c8:93:95:47:75:5d:9d:04:24:ad

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate ckfr.org

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for ckfr.org

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

ckfr.org

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(limited to 100 certificates)
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mail.ckfr.org
telestaff.ckfr.org
ckcloud.ckfr.org
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telestaff.ckfr.org
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www.ckfr.org
www.ckfr.org
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telestaff.ckfr.org
message.ckfr.org
v2.teconecta.tec.br
telestaff.ckfr.org
sni.cloudflaressl.com
www.ckfr.org
ckfr.org
message.ckfr.org
ckfr.org
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invitation.innatefervor.com
www.shijithpadmanabhan.in
ckfr.org
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ckcloud.ckfr.org
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ckfr.org
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www.addressprofile.au
ckfr.org
ckfr.org
ckfr.org
ckfr.org
mail.ckfr.org

Certificate

The complete raw certificate details for ckfr.org in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4bA8/drnpoe6MDuoJQND
YKT7no0fmFcUt0ERfja+wWCtek5oxHUad5UL40KLOOoBdXTigOplFmSogfo5Twbu
FFiNd0cMz6q1XxN5vY55+Ooc6BxhTcFJkaX8B5CTu5yee3qAbcN5IqVAo8ifa/vt
GYjmR1kFPyZ+PUi6dpt0Lbyb4iaLPWe+Fty0TnVmK8HRa6XjCZi2pWOijwNGxpyf
j5xMUph+HuuBegpUe9mxbp/GxiTPXct2GKVBz7HUUX17iaXLqF4rUuCU/VXU1EB4
enBzklxfT3Zn2NwixsgZVX1vaU8AGxH9m1aUGmLyc+MY09xrW8/vfwiq8LHkMDfq
3wIDAQAB
-----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 310325745022269736357126395881993557617283
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-08 18:24:17 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-08 18:24:17 +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 'ckfr.org'
 . . . . . . . . [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 28490524936751963792403461879106905671610024733513132124712801508358817564391730780758240849245049113902843029716937447219546790243313757775730237293985205652542360629496348659799321725814486306011769448773734988273579529762547613267243712485586486384092101611887829155274040516781827203068611093051809857994441903144465034092814319360252739543937528802585719159515425370692715517146543057615739467690443450702138465762886063704174371684419699048208292385237171687896061772139153129851294935829959331149173710705837035961311078344371967078245434889823639300649266513498567483351966252314573081761028722962419070528223
 . . . . . . . . . . . . . . . . . . . . [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)
							1caad9da502e2d9db9e8d4e55ca8d01c5ad56a12
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (12 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'ckfr.org'
 . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . [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)
							00ef0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000170264282470000040300473045022100f3df0d897080951bf34773af15766ccac466c0737bc696ecfba076220100a49a0220419c4c9297b7e39b8aa1fe35a03ea8ee620bb54d170021b1b0ff40be3afcfd9e007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e00000170264282330000040300463044022021fae89a1a25e3b9b2ca96c99f779f2cd4e7f225d52f95d1185d78d00da2499b02204af44eee567d7e547e6bd24744e12f3735a5c93a66b017f557407cbdd19c5ff7
 . . . . [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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