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:23Serial 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.orgCheck 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----- MIIGTzCCBTegAwIBAgISAziE4051mcH3dT/McWvRBy4jMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMDgxMTQ3NThaFw0y MDAzMDcxMTQ3NThaMBYxFDASBgNVBAMTC3d3dy5rencubmV0MIICIjANBgkqhkiG 9w0BAQEFAAOCAg8AMIICCgKCAgEAv3TfqQMi6RleplrT0V/JmzYT7WAcSQNF0cPT kfhkJK6fLov9rWusg36DPVcA+12i+228SGUC+0FSg2iRyULDcSYIDuhT1J1jlen/ 4Xs7icJTw2igamsytGA8+ktpzAeLsQtd8UQot2lgdmM1D+7TWpBtQvbK1d1aTY7U 02+TNJ60/PuTMGuXBX0+gJ19mFvMhPCq/0+9BhTQ9/Ynlwwe/vHzHEmFUla3vYdy ESM6jD2aRAOF9AqegxeIAKiERCPH2n6BTUcPfUjyWDru8DaR3LP6If4YZv2NduQQ shGbdOXKRb4D9f9CoQTaqHxLorYcnxjGBWTewR7I5nGME2dTaDoYBmrw2HvWZROs Fu5lhZEzBqWoL3legmJmScvDxWooJL5dLkq8LJTcFKCPcPIJ1f/KzMC9fABYsRrD 3RVa86MStDoU7spWgkwP3Jpkk8K3QBgXvSDRWdtSxp1WMGhNV7gQbF0NkWHtva7+ XB4oi2K11mal6ofFSCov2HFdfAImQXAjZ3j6Wd1TMqXynoKE/xeT++e8ySVpJdek BCkKshj3q9cob2UPRj09Vkk0oDlvFPlm2HmROvtGhAWVUWG2qEb+2TPAO4U2aGbR 9bLLPlPmbeJ9k7lxVKIgORy3xXa4DXiSXVknvNEOCSmDiPj8OBoC+z1TM26Njz3A xVeIn/cCAwEAAaOCAmEwggJdMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUPyzK6Gkh EAVGViZjVUenwFxGUqAwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu bGV0c2VuY3J5cHQub3JnLzAWBgNVHREEDzANggt3d3cua3p3Lm5ldDBMBgNVHSAE RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQUGCisGAQQB1nkCBAIEgfYEgfMA8QB3 APCVpFnyANGCQBAtL5OIjq1L/h1H45nh0DSmsKiqjrJzAAABbuWNYmoAAAQDAEgw RgIhAMnAV/Wnwf3jZwNonXeQZE+zidIEAor99M35n2HUL6e1AiEA++Sst99Jf8Mo XFcZEiXzI9049ry9aldLUOZUvccXBpIAdgAHt1wb5X1o//Gwxh0jFce65ld8V5S3 au68YToaadOiHAAAAW7ljWJXAAAEAwBHMEUCIEaHvf3Y01GXE0+uxBDFa+S96Z0p kvlqR8kAUraHfGpDAiEA7sLzdmLvsdIxdUIJWcjFTWFmrhZb6IBDD+F4a+S490cw DQYJKoZIhvcNAQELBQADggEBAIVd7rZHT+cRYAaEl/Tk/QkoE/kigKMw3zvNBZmn GC2G4HMYDIB4j80A1T/VlERKjbXC2fmElgCaj7T/pzynP4Oh/PBqHmzbQ07sl4js n+7UEz6HkOnYs7Sa0eMDevAqBYfr8LzVS3FEgvpawrkQv4fbfN4LkyJsVE0bJ5dP TMp3B9uthx1dFowfp3b0URWRgjpFHPcB1eDPM7S8LbQCl6VP5ER6XO9IwnjrU89T VdrIhXmRUQImm8d5kuNYY7eYECPvS1R/q3FZ+LLr2rGbe8jcaN5mUFLdNTQsozdY p73ytXVatTjI6hecVXCfmFNugi58/StWa491oau6VK9dJRA= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAv3TfqQMi6RleplrT0V/J mzYT7WAcSQNF0cPTkfhkJK6fLov9rWusg36DPVcA+12i+228SGUC+0FSg2iRyULD cSYIDuhT1J1jlen/4Xs7icJTw2igamsytGA8+ktpzAeLsQtd8UQot2lgdmM1D+7T WpBtQvbK1d1aTY7U02+TNJ60/PuTMGuXBX0+gJ19mFvMhPCq/0+9BhTQ9/Ynlwwe /vHzHEmFUla3vYdyESM6jD2aRAOF9AqegxeIAKiERCPH2n6BTUcPfUjyWDru8DaR 3LP6If4YZv2NduQQshGbdOXKRb4D9f9CoQTaqHxLorYcnxjGBWTewR7I5nGME2dT aDoYBmrw2HvWZROsFu5lhZEzBqWoL3legmJmScvDxWooJL5dLkq8LJTcFKCPcPIJ 1f/KzMC9fABYsRrD3RVa86MStDoU7spWgkwP3Jpkk8K3QBgXvSDRWdtSxp1WMGhN V7gQbF0NkWHtva7+XB4oi2K11mal6ofFSCov2HFdfAImQXAjZ3j6Wd1TMqXynoKE /xeT++e8ySVpJdekBCkKshj3q9cob2UPRj09Vkk0oDlvFPlm2HmROvtGhAWVUWG2 qEb+2TPAO4U2aGbR9bLLPlPmbeJ9k7lxVKIgORy3xXa4DXiSXVknvNEOCSmDiPj8 OBoC+z1TM26Njz3AxVeIn/cCAwEAAQ== -----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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