www.kzw.net

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:38:84:e3:4e:75:99:c1:f7:75:3f:cc:71:6b:d1:07:2e:23 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): 03:38:84:e3:4e:75:99:c1:f7:75:3f:cc:71:6b:d1:07:2e:23
Serial Number (int): 280569308681029019991688114963130503081507
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3f:2c:ca:e8:69:21:10:05:46:56:26:63:55:47:a7:c0:5c:46:52:a0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 89:78:b4:37:db:85:56:d5:72:a9:54:2c:7e:43:fa:c3:57:93:cd:bb
Fingerprint (sha256): bf:2f:9d:29:36:d5:bc:0d:82:3b:c5:bf:cd:8f:17:12:0c:8c:e6:e1:0b:d4:fc:8a:bd:0d:e6:ce:94:e8:59:84

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 280569308681029019991688114963130503081507
 . . . . . . . . [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 2019-12-08 11:47:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-07 11:47:58 +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 781074528653661632660051193452338807517267703159658083016870325718256098776503226696816044111837760128320193248578430924562373433106129867496433501699600404883318740896735716062334178354442233810773557227644101704304544983158360433403612011662904404821975958386180087367138194825850077052582504497785570300856296707994963456605917810426506512676346297354196334286648302421955569444233270085847614543687177502859014232988835771095701737045035445364403481952329937735496891818302278772126290759753924844513431333266121612797676497603529452848450038408371678893275522900928239327855250068555205989695251216209117851250029619752252444033077445905480767722920223831679009326709689761109307328111409742026917734363587942786581626945306719288681121841817490594889394706836766712280524357681049812925799723933448920060402031823145394022063144062760717812548638855513696112372367545196058315796184713771985355353463484022137905389252112888778437041587445685750329770293520137779287112317528032523341298595334455391511026800126112474791202504367211449635985358474970260056515864073831102222006521635963973495935427885329444055477790440644805818160949229010853252462907481615864240360021256113124145834941840897950295657686431150203969609441271
 . . . . . . . . . . . . . . . . . . . . [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)
							3f2ccae869211005465626635547a7c05c4652a0
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016ee58d626a0000040300483046022100c9c057f5a7c1fde36703689d7790644fb389d204028afdf4cdf99f61d42fa7b5022100fbe4acb7df497fc3285c57191225f323dd38f6bcbd6a574b50e654bdc717069200760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ee58d6257000004030047304502204687bdfdd8d35197134faec410c56be4bde99d2992f96a47c90052b6877c6a43022100eec2f37662efb1d23175420959c8c54d6166ae165be880430fe1786be4b8f747
 . . . . [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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