cofactor.com.cn

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:22:c8:d5:fe:17:3c:32:fd:6c:da:fd:a9:f3:81:8d:c5:6a 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=cofactor.com.cn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:22:c8:d5:fe:17:3c:32:fd:6c:da:fd:a9:f3:81:8d:c5:6a
Serial Number (int): 273173414982553416599491450932401420485994
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 6c:70:24:41:c4:19:fd:4a:6f:1a:9b:d5:8f:a2:14:4e:26:21:10:c8
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 91:50:a4:b8:b7:d3:d0:02:4c:75:b0:e9:8e:c3:50:f5:f3:4a:0d:5b
Fingerprint (sha256): 94:b1:df:73:57:13:75:76:bc:4e:a1:dd:ba:0e:42:da:3e:7a:c8:3e:5b:a9:59:da:c6:80:bb:f3:29:10:a6:4e

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 cofactor.com.cn

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cofactor.com.cn

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

cofactor.com.cn

Other certificates including the domain name cofactor.com.cn

(limited to 100 certificates)
cofactor.ae
carrosecarrao.com.br
cofactor.cc
cofactor.com.cn
cofactor.ae
cofactor.ac
cofactor.ae
cofactor.ac
cofactor.ae
cofactor.com.cn
panuda.com
cofactor.com.cn
cofactor.ac
cofactor.com.cn
cofactor.ac
cofactor.ac
cofactor.ac
cofactor.com.cn
cofactor.cc
cofactor.ac
cofactor.ae
cofactor.com.cn
cofactor.am
cofactor.ae

Certificate

The complete raw certificate details for cofactor.com.cn in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArHzJbk1o9thCDPn8EBwP
DxRgbYO27ytZaZr48YqRBXXFKzBh7xok1uGfrOPiL4W9ZASsMfecoW8BcKRL67NF
vqRmxWeQcamHH+SkLPui/lKpn22AJgAFY/rrFaMjI9F14W7K24sFxGx39ewcwUor
1Edo701TqUuGcFXrw85IKsDInz3XEabKkfRJPZGyrLQiIkej6SVYwQ8B9M1BOvOE
3m7cY7gNCOJwJmxwW2b7bU/43WrJ2DRubSQLytkG719esH4p4AjVia+OZiEgwpYR
sEQinoxv3NiFhY1oq+DU2BTJjSeM6aZYQvVvIX/5T9tdarptYDNbiQUoyTrT22wh
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 273173414982553416599491450932401420485994
 . . . . . . . . [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 2018-12-20 06:33:34 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-03-20 06:33:34 +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 'cofactor.com.cn'
 . . . . . . . . [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 21774523138065173880144330839879559996839282298520201096340025136575862995707435476524457116592174930682297140414971055039109526496516021068085428489924640749445340770964953196233131808772155178178847578184811604281152612301783704251832035785975634256332684368952689289273974513874353510689553365565517738191181934271905151424332958115646568456403348588341665128013683986256421525466928660531252135847084654658016292471425327276619477891477759939436224780052388631203944642613498004245464320460958655086190546072812166334819424804022238032069306078512037050685523080406465372853373268890819005232898796644724913217967
 . . . . . . . . . . . . . . . . . . . . [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)
							6c702441c419fd4a6f1a9bd58fa2144e262110c8
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cofactor.com.cn'
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000167ca88b0b50000040300483046022100a08aa8d9f581b03f173e7fd6f792d81b587509ba340bf734ab28a8106de0249f0221009ab8ea84af38bfedd0b7806500f0fa5164f639b09b3e663c292d34497976b12500760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000167ca88aef10000040300473045022100b6ca77446a7d56b9c28cc61f25e486f3b04ca58a791a34a55902f01ab780dda2022035239cc17e143496fbeed3d82ef573d441154932faded5b7ebafac194141777f
 . . . . [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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