www.kzw.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:69:e8:df:5c:ea:90:3b:f2:ad:4f:d7:3e:a3:92:3f:d0:70 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=www.kzw.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:69:e8:df:5c:ea:90:3b:f2:ad:4f:d7:3e:a3:92:3f:d0:70
Serial Number (int): 297376046983766544230939771494781320941680
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 06:e3:7e:28:68:be:66:31:a2:15:da:5c:d8:80:3b:fd:aa:1e:56:7d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 80:3b:17:13:63:53:40:cb:00:64:23:35:d4:70:fb:c8:7d:77:35:39
Fingerprint (sha256): ed:24:4b:98:23:31:a9:05:2b:31:06:f8:e1:63:ee:f0:20:fd:92:21:c5:ba:e4:8e:74:a0:81:12:9d:82:71:21

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 www.kzw.net

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.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

www.kzw.net

Other certificates including the domain name kzw.net

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.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 297376046983766544230939771494781320941680
 . . . . . . . . [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 2019-07-28 12:08:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-26 12:08:43 +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 'www.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 755584951197267541122447471927841831607511438901597752145542311617743318016203333194891074109895845174106066156048349060424674199055549087658892528297340715219834669986052493495811829542200183261131349335093060149753911614643586386982263557930346669771209163223099057114893114624641408530750656572961135167509418829944145471825882420432601320587310563819634072885891742620202179486617178336626806603576071231625043751713799403244542321879749404780052925392440471976409142339480267616415849308290336115220415216956014742405731383013678200572876286562752527700285369216086209192666706926963450556213563476064191753254778375031238418234276441799319204235504167757741901190152325197580595467739218487878368382551621026308373262538279522540977472815405946071649786573201221682159119313810403971712076587615991500884511502699488050176446923389083387087499268352489534961364129942590830524427489245600506029456226683154032599213476375515967153999692229145705650279298441899081984421459502564858535245782077966155843978350413864646568274389423855356519597587629321308644441317248042175915254889883420656453296907073601307150462936743681192723203025750060330358377062899213422340960360916040739539081561172282283337877996116842278359805748569
 . . . . . . . . . . . . . . . . . . . . [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)
							06e37e2868be6631a215da5cd8803bfdaa1e567d
 . . . . . . . . . . . . . . . . [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 (15 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016c38b298970000040300463044022036c343ded913a412c3e6c7b7cb624857e012b8befd8aa5e9de7b7509344df3ae0220657a07cfd634f574b4eec57a3beeb8389bb6eb2ba8518e7d9d5d1a843361513e007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c38b296c10000040300463044022074da1a81b30664d81bde1f8da8de0c0aa02427bf406a221597080d8367dadc2e022073ed231e99da55ef08a3fd5aa823ba7ac8003d10659c2647f4236f31a410c9ff
 . . . . [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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