zentek.com.br

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:69:94:a3:c2:58:e8:40:5d:9f:99:c5:df:6e:0f:4c:bd:a2 was issued on by Let's Encrypt.

With 9 subject alternative names this certificate can be used to secure multiple fqdn's. 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=zentek.com.br

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:69:94:a3:c2:58:e8:40:5d:9f:99:c5:df:6e:0f:4c:bd:a2
Serial Number (int): 384376368283335053721577672775218246761890
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: db:8a:13:df:3a:f7:9f:31:19:a8:d6:6b:0b:9b:3e:d9:26:6d:31:7f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 76:1d:ef:00:62:4e:e4:1f:7c:f3:72:fb:a2:69:64:fc:bd:8e:ee:81
Fingerprint (sha256): 38:3a:88:eb:02:d2:bf:b0:25:ef:82:17:3e:e1:c4:d2:92:48:9f:66:ad:4a:d7:58:2c:8e:61:bb:6a:e1:bc:d9

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 zentek.com.br

9

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for zentek.com.br

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

autodiscover.zentek.com.br
cpanel.zentek.com.br
mail.zentek.com.br
rubbly.zentek.com.br
webdisk.zentek.com.br
webmail.zentek.com.br
www.rubbly.zentek.com.br
www.zentek.com.br
zentek.com.br

Other certificates including the domain name zentek.com.br

(limited to 100 certificates)

Certificate

The complete raw certificate details for zentek.com.br in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsicsCI5Ock6bPHVdfa3q
ekjDLXneUhDUfZw9oUm1csqYIW7MB22Ryl9Z/MnRmrdWh1vvwOnCgwUDM9GyHp5F
c/sxlHxM/dguV7v2BmtcWBHYZ1ket9yoGK5N5p+22ahGYffE8e+6n9YoCvJjK+YK
aT9sEj8kt5cz3i1RNQlQnYVuUaNe0BpaTE/R1p7Uu4KiPxBI1Z6ZZnF+zo7UgdIz
uSvczuNC7JXWZHhUKz1g7O/ad/K6UB37+drcTz3AqLxkhPGhcmyruO3qVYPKANhu
pstBj5Cm52FvclyQsZPPG9UG/s8X3E52X7DWjA95osaB53sCVZr5xr0zZL4A/8BI
VwIDAQAB
-----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 384376368283335053721577672775218246761890
 . . . . . . . . [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 2018-12-22 21:29:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-03-22 21:29:15 +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 'zentek.com.br'
 . . . . . . . . [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 22489734719829765465628208540440067081127569661353383817662857263894848013325543954230019914826159089977327358781460507867138733552734928812778881005004831489068243881109629500790296552908117583234288751618104334124422332458100516364970176480811148503074645221077493873796782862140793202437533154094745879759302366188436499423967682416688931882172480909275835507415222198853904997099244573725226601194336171835554061291665306220197151881050699910166630931162153015228032018135069025664205456336136544934726635992519707906037470314146121760076432148986572198312106894265518875566015576243165389133960721419672521558103
 . . . . . . . . . . . . . . . . . . . . [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)
							db8a13df3af79f3119a8d66b0b9b3ed9266d317f
 . . . . . . . . . . . . . . . . [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 (201 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.zentek.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.zentek.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.zentek.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rubbly.zentek.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.zentek.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.zentek.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.rubbly.zentek.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.zentek.com.br'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zentek.com.br'
 . . . . . . . . . . . . . . . . [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)
							00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000167d8096d080000040300473045022100ea396c962d0ebeea2a9f5f7a7096a6f1e747a844c751f453ea7a1f552edd462b022041d21a5281e8ef2998b465e84569e22e3178ca83699aba6b068ea907cf47e941007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000167d8096cff00000403004630440220450eb0eb0a93bbc4648ea12c6ac93424f856b829840a487ae9a050c931a798460220769e3d30c5fcd78327a866bbd9ca78adbf9c54c226e24e1871002f301d72039b
 . . . . [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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