www.kzw.net
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:18:8a:48:95:6f:b7:7e:6f:57:5b:eb:2d:75:87:b1:f9:8b 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): 04:18:8a:48:95:6f:b7:7e:6f:57:5b:eb:2d:75:87:b1:f9:8bSerial Number (int): 356799730872865788198093550161027084188043
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: ff:76:36:a0:3e:8c:e2:3b:4b:80:0d:9a:34:fd:75:b6:e7:27:e5:42
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 26:56:7b:31:56:67:a2:50:3e:46:78:91:1d:8a:1e:79:d8:58:c7:33
Fingerprint (sha256): 8e:87:4a:26:0e:d3:57:79:4d:63:ed:30:87:9a:8e:2d:ab:33:94:16:cf:96:3e:0c:7d:1c:01:5b:fb:b0:d1:2f
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----- MIIGUDCCBTigAwIBAgISBBiKSJVvt35vV1vrLXWHsfmLMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMTIwOTExNDFaFw0y MDA1MTIwOTExNDFaMBYxFDASBgNVBAMTC3d3dy5rencubmV0MIICIjANBgkqhkiG 9w0BAQEFAAOCAg8AMIICCgKCAgEA0vIo1+4lFKiZFoVIxPAXAqyS8dAPghsuQvJs +SUR+ePoXY/JLLCrgHWwv3zDjA6X8MsbXXBixhE3w9/zWRCbpN1zxXgOX/lvcxST fXYhSdFGPOI62M/UmZAppgWT3GdXr7eg58rqgr6XfIWKicneAwRw68HQhK6pmaUc 6Iz8XngmcpSk+JgzaI+f646yDyuKSa67Zno11xWA8w8WCg1b391AVyKQr+nMtmZg XACLMQsz8f4GO6+zK7EKlAqYnaxL3L5xNeBsWeLav30UCpG6EGG4hE6BPeE99TRz Jhgkw+AN1Bt9/bPae3eu0vvUZKgEg5CSDzdaf2KmC3d8CaRINQ3Imp7xqpLmQnRZ wgzWeFHPjFN7tWNw8bhIs5VCihY0QRFE+GrhHIWcrV98n67Rhktjhqc9/TwDkOsO +5ZEt//uytCGn/DWi7JGa+VCAk8hIAhuY8aTYbKmEY4Fq1hliquWRvW+jn1aC+ml b9fRNjJnAQCehKF2Vi5R2XvEOlYkSdi7XVIH3qmK6W7wW4sluTFjkCW+snFQr0ZU JSVbUXm3RI9iOGPmIEUtwt6XfXh5t/6B4zP6aLWq9wtcI5UiFnnkQWZUhVLv+mWH weZ2kHnM/8okVKvbsg/cGmASTiCFb22aDoB4uCx4gDaEq1evLQhvCTnm6dICAsKk pGUWdIMCAwEAAaOCAmIwggJeMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU/3Y2oD6M 4jtLgA2aNP11tucn5UIwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu bGV0c2VuY3J5cHQub3JnLzAWBgNVHREEDzANggt3d3cua3p3Lm5ldDBMBgNVHSAE RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQYGCisGAQQB1nkCBAIEgfcEgfQA8gB3 AF6nc/nfVsDntTZIfdBJ4DJ6kZoMhKESEoQYdZaBcUVYAAABcDjiBNQAAAQDAEgw RgIhAOhcZY4qwu8HvWCErxljhzgjM4EFc86ey8OwEpAPyI9MAiEAtvc58Drh0vAL 3yDkiyI4n/bIJ1DQD+KO1YuFhv8QRc4AdwAHt1wb5X1o//Gwxh0jFce65ld8V5S3 au68YToaadOiHAAAAXA44gT6AAAEAwBIMEYCIQCcpfM7j+0YlihjDsuQpg0PfkPi zpm2exYdBjVb3RXHiwIhALuvXtkyV8ZUw63n0m+3gCyPdz5cbIvkQxwi5LaAhn7r MA0GCSqGSIb3DQEBCwUAA4IBAQCPqxNPMz72n/ooeusE7r9QdTuE9WlMu5/VY1YL g5NE36B3u7zXpSwiUUMABmt2KISXCOrhnUusVamsAnBdgeqcQUEbd7JwfbnpV5cz 6lHqEWdY8Mhwo/6FWw8iGMQy+royXfPUFIt+7h1GB3ng4ykH9NEcTxrGXqdOAZlJ stJ8HQMpdFWBBotJvjG/hoeTFt0bocksnxNQDPdIiUDlVBjcXEuejgJWuEp5rbIp PCM3hEwzX/cqAT/BRFi1W2ZzLNTo/KB3i6HhK2Xq9GEgEDSlayM5CsO7oxrvHoRI 9izEAXNet4fEpgscSLGxhGgNwyHPgy5xv+yGfYQsoYbRPVYl -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA0vIo1+4lFKiZFoVIxPAX AqyS8dAPghsuQvJs+SUR+ePoXY/JLLCrgHWwv3zDjA6X8MsbXXBixhE3w9/zWRCb pN1zxXgOX/lvcxSTfXYhSdFGPOI62M/UmZAppgWT3GdXr7eg58rqgr6XfIWKicne AwRw68HQhK6pmaUc6Iz8XngmcpSk+JgzaI+f646yDyuKSa67Zno11xWA8w8WCg1b 391AVyKQr+nMtmZgXACLMQsz8f4GO6+zK7EKlAqYnaxL3L5xNeBsWeLav30UCpG6 EGG4hE6BPeE99TRzJhgkw+AN1Bt9/bPae3eu0vvUZKgEg5CSDzdaf2KmC3d8CaRI NQ3Imp7xqpLmQnRZwgzWeFHPjFN7tWNw8bhIs5VCihY0QRFE+GrhHIWcrV98n67R hktjhqc9/TwDkOsO+5ZEt//uytCGn/DWi7JGa+VCAk8hIAhuY8aTYbKmEY4Fq1hl iquWRvW+jn1aC+mlb9fRNjJnAQCehKF2Vi5R2XvEOlYkSdi7XVIH3qmK6W7wW4sl uTFjkCW+snFQr0ZUJSVbUXm3RI9iOGPmIEUtwt6XfXh5t/6B4zP6aLWq9wtcI5Ui FnnkQWZUhVLv+mWHweZ2kHnM/8okVKvbsg/cGmASTiCFb22aDoB4uCx4gDaEq1ev LQhvCTnm6dICAsKkpGUWdIMCAwEAAQ== -----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 356799730872865788198093550161027084188043 . . . . . . . . [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 2020-02-12 09:11:41 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-12 09:11:41 +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 860584335341247160483121696781395051694230689864524801531933955269343521941001152023831570182563779438277349016827337663849635586120366310357227123748331102457650420783678297028878899627238243582032931705714307717021750596368863763134608180695773866414907015087358372054348755758392291475780640699748360607965178472430901699392265177154579919718795927575980129515388843264751526957731671431274272448215163600002012853766465475617734333321158134707571918867311475278714619166490030149500896423175244061063647959683210364902297390472638719300841934607393121905112413282377730135001492828481376457493437069202245750045608675508466801471926792406610265895274300787529572719401477256956196296572919053595610826607160479829732343139709036723212227791513080400393387473194010750262394408291289380633341067857582734093812211468965544213791981270998740323350387424626749735478233497906876844154897555220372303995494308313868880237078832413115280138599554676567688077301834672163428993618227559565398953141046982028860960150604060461493138266768245757092695026487565390611021888210035318359315442574008640760122416825490348211948965228264777751171444116934647578418170769493788865907018588306709187622262209113789150034635219102534357325608067 . . . . . . . . . . . . . . . . . . . . [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) ff7636a03e8ce23b4b800d9a34fd75b6e727e542 . . . . . . . . . . . . . . . . [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 (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f20077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000017038e204d40000040300483046022100e85c658e2ac2ef07bd6084af196387382333810573ce9ecbc3b012900fc88f4c022100b6f739f03ae1d2f00bdf20e48b22389ff6c82750d00fe28ed58b8586ff1045ce00770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000017038e204fa00000403004830460221009ca5f33b8fed189628630ecb90a60d0f7e43e2ce99b67b161d06355bdd15c78b022100bbaf5ed93257c654c3ade7d26fb7802c8f773e5c6c8be4431c22e4b680867eeb . . . . [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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