zenztech.com

Issued by R3

About this certificate

This digital certificate with serial number 03:48:6a:16:40:23:29:95:58:0d:4f:e9:98:84:57:b9:3e:cc 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): 03:48:6a:16:40:23:29:95:58:0d:4f:e9:98:84:57:b9:3e:cc
Serial Number (int): 285978201912532467910840074604736872529612
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: eb:e3:5f:45:d4:67:e9:da:f3:e7:e0:a7:ba:35:6d:1f:00:49:a4:3f
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 3a:0c:df:73:6d:ed:40:24:6c:05:26:f0:62:1f:7b:df:8e:1b:42:82
Fingerprint (sha256): 8b:5e:54:42:84:5d:c9:5d:54:5c:2d:fc:03:16:b2:91:96:52:90:ba:0d:3c:9d:21:61:c7:83:13:5a:3e:4b:26

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 285978201912532467910840074604736872529612
 . . . . . . . . [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 2024-02-04 22:50:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-04 22:50:14 +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 628384115217082725198599251574188086671644241162398420512882796579895975634157234368123526879827189155320379840567829749688116237971295756824714981072155334879267448789990353328412708491522403412509947550209502978493093597032278845292548407392707134761321762097067078887168669089288565775664804112097840955487347164004199184187806053132788218242299202910339248344842030936396436862562616983759187343132251216896837544836461520839018531058351242428178197399654166246845194741946361482130419999326764579585488202357010893954707497494937086629539804979794048300717808614670217337338282557158770860509310938529114639886030533480119383577277885058153664967551818498968377483289012931772734913152301483043549168582173722426870516227677413526136061678992041231522128784410182619910484774285421600585489210469171928903727832618383470913619207337117389282303579689858804597538612026561294798926956805887091177407168822315313745620026060208683746597800315391284692674158130336997701768532244488637260952881724552695694273405406908678401001982013792446441727802733547854153532042450783111642550960746178983927275609575646805127930292358334890944731395096180748606319423884317778266686275336457060155753473044321305804824014571086400894974929939
 . . . . . . . . . . . . . . . . . . . . [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)
							ebe35f45d467e9daf3e7e0a7ba356d1f0049a43f
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d76879cc1000004030047304502210096cedb4dad84584fa0a4b1cab5fe722414d4e46669bfe50d2c664879ef018f100220342535a90432e9ace307ede9fa400cad7d5172bf9a706ca150876efd0736e7cc007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018d76879d0f0000040300483046022100fdd8df1121d11f6661ee60d45249676d78e3edc034bc55894576f4359695f3d3022100baa79f8f420e251cade6645c849f85ea79ac5f4eef1a8e38dcfc62192da74875
 . . . . [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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