zenztech.com

Issued by R3

About this certificate

This digital certificate with serial number 03:4b:38:f4:81:ae:81:e0:35:db:f9:46:89:d6:16:61:0a:01 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): 03:4b:38:f4:81:ae:81:e0:35:db:f9:46:89:d6:16:61:0a:01
Serial Number (int): 286933741632805296254990018062683318848001
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 90:d6:40:7f:94:c9:04:e5:46:2f:9b:1d:39:21:89:76:68:95:42:9b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 7f:c2:4c:f6:2f:9d:ea:af:90:7a:d8:4d:d3:07:ee:f0:89:3d:cd:ba
Fingerprint (sha256): d8:fd:e5:22:d5:18:63:7b:18:d9:bb:4f:7e:7a:19:3d:d3:aa:8d:92:30:10:18:d4:e2:2c:b0:99:87:44:02:72

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-----
MIIGEDCCBPigAwIBAgISA0s49IGugeA12/lGidYWYQoBMA0GCSqGSIb3DQEBCwUA
MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD
EwJSMzAeFw0yMzEwMDgwMzQyNDRaFw0yNDAxMDYwMzQyNDNaMBcxFTATBgNVBAMT
DHplbnp0ZWNoLmNvbTCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBALHE
plIdduFNcguDzx++6YHL0LeRpO/KXMpObXsilwTnt5TfRoaYov/IKEPHmqwNHA+y
7M6QsPLkwdXbabPPA8OePomGknlKCWWHrT6IvfmCeJZOBk+IFvyPQqIfCyYHbo9Z
moZ5pdk1ZVrs4U+J5pjidgmLrEsxqRasu3zCV4U4po4EEKTUoQtgESNphPc50/4x
PafEPPjeP3z+WJC4DgMUy8GZWivqm67aCL4VtJugSHk02RumgH9krh5R8CipkIax
+HrXjBpSw+pfFL8ZJJvilG5Hd+8/QGiWLZrY79kmXIKeuuRWkuj2ptLg20Rs+zKJ
S7y2/KzSwf92miIcSHShP/+TXYkEBGAmIvyoI6z5+Mq2pg2YqB6Ign9oUi000hdS
hdh5Gm28NR7/xtw9nd+HGEfWdLQ/YYJMz6u2Fc+haPxWxJGIx/URAmsMeeVP4Toj
IRj3P+AnxL4jssIv9cGkt35AtUjZjdauxRD1PvBVu1wPeHPGJ4uTiZda9O6rdquA
DMndfjEadP4KH72thx82T4xXlHhOxzKWa7IWZbEQIVRT94Bk3d0+15DkjbxICUGf
YjLO0faaiQPlRGmu3d3EViqY+QttJ4jwTyCl9ATjIc5LVNLh6ZXEdfVgNu+Ib4mu
W1ScCkTXs4wlXVA9SO+VipM69GJcx6Ah47y/OuVPAgMBAAGjggI5MIICNTAOBgNV
HQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1Ud
EwEB/wQCMAAwHQYDVR0OBBYEFJDWQH+UyQTlRi+bHTkhiXZolUKbMB8GA1UdIwQY
MBaAFBQusxe3WFbLrlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEF
BQcwAYYVaHR0cDovL3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8v
cjMuaS5sZW5jci5vcmcvMEEGA1UdEQQ6MDiCEHd3dy56ZW56dGVjaC5jb22CFnpl
bnp0ZS5zaXRlLnRyYW5zaXAubWWCDHplbnp0ZWNoLmNvbTATBgNVHSAEDDAKMAgG
BmeBDAECATCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB2ADtTd3U+LbmAToswWwb+
QDtn2E/D9Me9AA0tcm/h+tQXAAABiw2YQ4gAAAQDAEcwRQIgV5q9MYiU3RzuFQ9K
YX50L0h3bl0Waagp142MedeDWe8CIQD5PQD8m7pN3ajQ5Yi8b+BkGfI/ROoOT0Qj
XAcJlJsJ2AB3AHb/iD8KtvuVUcJhzPWHujS0pM27KdxoQgqf5mdMWjp0AAABiw2Y
Q9QAAAQDAEgwRgIhAMGpNjHEM5pifiUPiVEzsO3nAsRSmym9TPRX/kf1f7B7AiEA
7aJccNPkLkbuhYuVlvpG4Et5lg2oV1SCc3J9Zi8aJCgwDQYJKoZIhvcNAQELBQAD
ggEBADe2Z6NdEoKJNV2N0SFN39pGQNOweq/Nw6dPqrzRCGVIB7K6+Iu14Ky6kCF4
8FVpbFRa3OnHeQsvUTPXESaOq4m3ubk2+sHZlkPbcNVCWyHSii99ckfjNtgRnQpA
usus+Jc0ZHGyy3nhZFa/9B02lO9Jg83uKraa5Ik5El4XaTD/gset5gWnYlQYi1SF
CKVF7F8Nb68wyRQS27QAakv35NxvXJubgBYlHGpji0Z901mIbdGaxZPvql8NzsTy
NkwX1gEP0w4GQWYw6fqbdvUXi1+9QigBDMpAinhuPcy1xQ+9ODe69XaJPu/wezCA
p3s69V1kJHZF7T7aUl3DshidWx0=
-----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 286933741632805296254990018062683318848001
 . . . . . . . . [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 2023-10-08 03:42:44 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-06 03:42:43 +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 725230831067813051415503756689507806118323072260617740690222305638559051344487228085527030203714620200275539693060460087397347368551073910151619509919298705985435575483352812419615332078904289182425322420449031633990123230077754135674156501525342515777613718281400783958879052070074175139915282758058837457215212388259395433162906798202807421545360882186183987846703811686823735145846865912152771109727382397609242623763852576250335137313779745338381881408324153032511613527838870723653082194223401725621520881636603859015879462712507397934926158821218073422120721306641882502685377924277907577320788028235976654233614741229688089465123283883378782242266028016224931279651425095735438263288287966968716599188424651583662246158283030667945674683605099606289398782128577885597006507663080041859571488300708858249696430203570067759723800877577289460518560440874561908006299225176060165003626124230688773239171963112822773423102350266402406547436941059526876367375925934896519079022558453049366815546265251656320191754186934063521206420755599424773551523062939488352490691858347643170103330676505475470473714926883612653301020594731788604870247261494795476218605145748006843267679290790286668366956045107864732606810334865378346685621583
 . . . . . . . . . . . . . . . . . . . . [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)
							90d6407f94c904e5462f9b1d392189766895429b
 . . . . . . . . . . . . . . . . [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)
							00f10076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018b0d98438800000403004730450220579abd318894dd1cee150f4a617e742f48776e5d1669a829d78d8c79d78359ef022100f93d00fc9bba4ddda8d0e588bc6fe06419f23f44ea0e4f44235c0709949b09d800770076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018b0d9843d40000040300483046022100c1a93631c4339a627e250f895133b0ede702c4529b29bd4cf457fe47f57fb07b022100eda25c70d3e42e46ee858b9596fa46e04b79960da857548273727d662f1a2428
 . . . . [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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