kzw.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:f9:f0:60:98:53:58:99:53:e4:0d:99:a1:98:c5:ae:11:44 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=kzw.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f9:f0:60:98:53:58:99:53:e4:0d:99:a1:98:c5:ae:11:44
Serial Number (int): 346386683427610833781617007963838796927300
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ad:4a:1c:76:7d:a2:0e:55:72:23:94:f7:ce:cb:e9:c7:fb:37:cb:2a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): e9:b4:0c:34:c2:df:40:2f:d4:02:40:19:33:e3:08:d8:80:2c:f1:40
Fingerprint (sha256): 94:0e:7a:1a:78:5e:68:e5:fa:fe:5f:a3:77:6e:26:cc:af:27:0e:00:84:05:8e:a3:d6:6d:57:23:c4:6a:62:41

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 kzw.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kzw.net

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

kzw.net

Other certificates including the domain name kzw.net

(limited to 100 certificates)

Certificate

The complete raw certificate details for kzw.net 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 346386683427610833781617007963838796927300
 . . . . . . . . [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 2019-09-30 10:50:27 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-29 10:50:27 +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 'kzw.net'
 . . . . . . . . [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 630384590738589394588698883279401565462014269992211450187195995853747567565628550535365918349056517831962429127426284507275734225523679911886140228968838915128039395190731726299112893384418333548521720461863546537954365459487079926460578685315171839963082957643849307130230163314094240760015738903189584791184914437687633307528015940566055481307218504851422233592532598446159823474936419999103585827911005646538735874643831576648687953754792008066370588641457659807691264245896395298063964539159340296230389387268419952059164730065018066884492862079795155747440091416992586533724515243188472381440154737483635488500896833635100476583674653957859306075608689225088371298738729360320408847271840767819275615159784719441754090033050757628907395509644813069801583488960211409420910539811842565125585500347763339162530354756767478781319807266048425629811996363035123034575883876453848002680019684195457148813653382578234957381976462449178982385338347985753211320601540581013883032075511723732858916068156697322281464927820731235781092129924418710249674478582017085747816260787306816720213850247230318101648448330698314721994386854797818487685382304814367756712078382534699542630022852635670910586233090834163110070873752505155929351031359
 . . . . . . . . . . . . . . . . . . . . [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)
							ad4a1c767da20e55722394f7cecbe9c7fb37cb2a
 . . . . . . . . . . . . . . . . [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 (11 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kzw.net'
 . . . . . . . . . . . . . . . . [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)
							00f1007600747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016d8201f02d0000040300473045022100bb1050edce50335702d73c2fa6a1bf420f1970cd676c7af546dd74f5a09e3c5d022039b79254ffb0c87879cfb7a0da3b510bfb533496ebb0d2b5792a0653c0204455007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d8201ee550000040300483046022100fb6e3441c86e781968da5f98d4fc139f9626bc9501c7c95fc7edfd39f5795fbd022100f3af34e23591e8f19c1ab1c40dd2347b923ef641c26aa038290ef1840815ff2e
 . . . . [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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