ckfr.org

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:80:cc:29:e4:49:ee:a1:d3:4a:56:4b:80:27:4b:ca:9d:0f 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): 03:80:cc:29:e4:49:ee:a1:d3:4a:56:4b:80:27:4b:ca:9d:0f
Serial Number (int): 305164380786719084592495991187033058614543
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 04:a2:c3:7b:9f:97:1a:a8:a2:d0:ef:9b:42:2d:ed:17:0e:cd:bc:c4
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 41:bc:97:4f:9f:56:23:61:07:21:49:41:5f:49:ba:6a:ad:6b:e6:bf
Fingerprint (sha256): 5c:20:f5:2f:37:17:a6:bc:24:55:b1:48:53:96:e4:f5:e9:04:84:35:c1:ea:55:5b:90:c4:03:cd:f1:2e:57:e3

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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www.ckfr.org
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telestaff.ckfr.org
ckcloud.ckfr.org
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telestaff.ckfr.org
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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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therealyouapp.com
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-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3mBrnu/mbnS98QVrfvU0
DWcbZ4A4D2RuTe58QpFFuGdx6MQsiMwxJXsnNtn4xFsToCqVjCKmnn0XGpKWyLSG
OrXg9h761c43B2bS8DLon+RzbOKmFvJK6szmgxGY7wGebPPRiBwJNoMq8Ay5qO16
NzE2E+C76SqWQJGUfLIlTilTts9gNHThQ7e9XjBXr8igWAeumSdCK7GV9BmdHPqA
NOkO4EHPyL0Kp5/ST6njGoQClv1YeWqlMelJ48m/tBEUv09rKQix8oPMwUbDEZYB
dThjKqmO0Ofmoj9ZxYqrJT9kZ0PZ3R/2q5v34fgIvT6iSF8Wn60c1KPa3fYPT0sC
LwIDAQAB
-----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 305164380786719084592495991187033058614543
 . . . . . . . . [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 2018-11-15 17:48:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-02-13 17:48:11 +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 28072450370804356851873775440552826704748245873104290928025543586458683584635505031076017217533112231822955071874065764735408440653042480062970228785383659922543614944548563050688047543423945202904797379645129662891082827694719376379532189490267852576729176329703212668518949370094704247436140285855231125572727482034645719342284947748473864796732454872102737404697100554909920631430946044534244991963303517220803239214778402968603816343669885718605031390528791479443891424136490794954682399742761167373820871372022309484211560822253538773377318363352324972580962429162500232473315082073061013652899492342008667374127
 . . . . . . . . . . . . . . . . . . . . [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)
							04a2c37b9f971aa8a2d0ef9b422ded170ecdbcc4
 . . . . . . . . . . . . . . . . [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)
							00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016718b3bd1b0000040300473045022056cf479938b10d7aeacdacd23ede840b8984c3f43512f677d9b1cd9d28f6effb02210090ea4b1da0711c11893b50915a1e66d0422f1e9b55b806efe35d8a5ee71d9531007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016718b3bd1c000004030046304402206748e4ee49b08793e824d58353cde300c75700d6508338e29a5d28d4f4929b9a0220052418778e91135f46bd332d897c90954345f704ac9ef11c339aca34b740518a
 . . . . [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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