zenztech.com

Issued by R3

About this certificate

This digital certificate with serial number 04:f6:f0:1a:13:db:6f:df:0a:97:19:2b:2f:f3:7e:8e:38:b5 was issued on by Let's Encrypt.

With 3 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=zenztech.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f6:f0:1a:13:db:6f:df:0a:97:19:2b:2f:f3:7e:8e:38:b5
Serial Number (int): 432477756111049922850065515058460168698037
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 5b:bd:e1:36:75:54:6f:44:0e:bc:14:8d:22:52:80:70:ec:d4:40:73
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ef:2e:96:9e:8a:c8:1e:f4:4e:91:b8:42:0b:58:d5:4f:1e:7f:81:6a
Fingerprint (sha256): 50:92:f9:ea:0a:92:27:5a:aa:e2:61:f2:e0:a6:3d:e2:3f:66:44:08:b2:69:31:1a:a1:c1:77:75:82:e0:16:5e

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

Revocation information

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

Check the revocation status for certificate zenztech.com

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for zenztech.com

Public Key Algorithm

RSA

Key Size

4096

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

www.zenztech.com
zenzte.site.transip.me
zenztech.com

Other certificates including the domain name zenztech.com

(limited to 100 certificates)

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 432477756111049922850065515058460168698037
 . . . . . . . . [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 2023-12-06 23:43:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-05 23:43:13 +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 'zenztech.com'
 . . . . . . . . [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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 722748797531571882996457908250585037260902370847861426504690997186915666135507099591709529286797011730110471818105058830537650950325199820519996624412066295169335535374015119980138386295609378753312336135893022096169742169363153377837092602653792334741667615165487159054290899006643301471424654464937796534004866326066650367331804186688802897245822328443016134118319318215177906564997754619081501138678156000854963684697976580009172092672171442162150790007378504055245676762374902077537054946246942395694060865697597857977722517035647377505732977046282720931568617087215580934343833141867019886399728799424446241421224597413782998830782633306301107470374577278654734317946646306686731854794043426643290151383259118613080244128109694407418411633460842417400205611919310394983295595494207110158600041497225161723197090352946937612702975444325470058945207821891719027970528911805948572950065205636640775838720480405122653964708096575078377123718617357031582516146919061100614174300262291371492071038835295828368895409493763671974580822056037067748481023803512975036883918732266116557979768000304699190072544733522873662727691935999467014487334301880606184081760817819690793677084601914350189755567813529253869429356018587563704378872669
 . . . . . . . . . . . . . . . . . . . . [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)
							5bbde13675546f440ebc148d22528070ecd44073
 . . . . . . . . . . . . . . . . [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 (58 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.zenztech.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zenzte.site.transip.me'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'zenztech.com'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c41ba8e350000040300473045022016705cb8af3f6a831469e1925fb5cc9a876470d7116d107a7ca9791857f5086f02210099d35b0fb0a6be67ad08a62c2bd86e04b42a03b310533479c7ae11c09ee1b68d00750076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018c41ba8f17000004030046304402205162788c62aced4601c63c7eb6c73d5c2e0f838fc545eb7a37c4e0cd1976407b02207350fd5518a8c8396f604d3ceb54923dc7b74ff65ea257c27987683ce7ad2b83
 . . . . [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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