kzw.net
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:2c:63:e8:96:1b:9a:91:85:fb:e6:2b:73:f4:9b:a5:e5:92 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): 03:2c:63:e8:96:1b:9a:91:85:fb:e6:2b:73:f4:9b:a5:e5:92Serial Number (int): 276442083168804356637800969639350302533010
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 91:12:ba:cf:9b:50:14:81:1f:b0:50:db:0f:bb:e8:b1:9f:4a:5a:d7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 17:e8:f1:ca:3d:e4:79:2f:48:e4:75:8c:ca:18:57:1f:58:3c:9a:b0
Fingerprint (sha256): 9d:9e:8c:31:39:67:9a:c1:5a:c9:ea:db:e0:43:ea:6f:61:0f:5a:48:a4:cf:37:5a:e1:a6:7d:a8:39:53:e1:5e
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck 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----- MIIGRTCCBS2gAwIBAgISAyxj6JYbmpGF++Yrc/SbpeWSMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA3MjgxMjA3MzdaFw0x OTEwMjYxMjA3MzdaMBIxEDAOBgNVBAMTB2t6dy5uZXQwggIiMA0GCSqGSIb3DQEB AQUAA4ICDwAwggIKAoICAQDZTguNWe2bgBtGKXFaL1DKCrXBE6txIWwnWwFkN2Ug gE7Iz1/jrWo2+8uVr3LYhlxiZSa+aRv4P+htC8Cms4xOL63eboLk3Ety57jweWby wpx9NSXtKxd9o6srYZMPB6NnMbL/gz20XLhk00YRjl+6A61BubXrw6lL7XqI/YOd WEuuc1Ngr7qaHQ11dUB+TepgMNZNEKEoklDXTOq7oKllfS8KTtaNESrjoBcH0W4C T/54wtKhr1HMMM/wDAJ6MfV6KNEhRD0sGvPaKOoDMEUCkz69OqjO/LLCrAXLhgpl o0WywOJKPIFILp8RWVCVDnTL6qs0lC+rFwh8sH8dmzSJ01A3F/6tF3Pmm/t1DIz8 /LjVkR0Kxk2YOGtXijLcxCtcbEZL6BD0+HdDCIlfSUqKs/ngdtiJfbDnoGj2v5Ll b2+aMePvVkT4emgcMdETA+1CuxI1EQ9gvTWWrfG6ssnFbr8itdfYO0pCZ1bNcWss fm4hpueby3SNKa9POz1EugFe89Q58/RO00KcOQYGbqW8Zh723137pcJFwz3ZGWgM sosd+SxlPs9wVTcdSEotIUrb59aOZJUOEEDcnUF+9z2elJxIlCd56vrxrEfNSVqE yOc5opyRa4P1SbE0L+sEIwQtZe3w1WMa7Wchewj8st5MbsR57pPsbedibf2wsWk/ kQIDAQABo4ICWzCCAlcwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUF BwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBSRErrPm1AUgR+w UNsPu+ixn0pa1zAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggr BgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRz ZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRz ZW5jcnlwdC5vcmcvMBIGA1UdEQQLMAmCB2t6dy5uZXQwTAYDVR0gBEUwQzAIBgZn gQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5s ZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHxAO8AdQB0ftqDMa0z EJEhnM4lT0Jwwr/9XkIgCMY3NXnmEHvMVgAAAWw4sZIqAAAEAwBGMEQCIG7s6xyx jmlRoEVauHVxG9bfnD5o/5y4hzvZlYqQakr3AiBkYqPcJrFZ0YiGl/qkpzpBfVup nPvEqKtAD1qDb2Re0AB2ACk8UZZUyDlluqpQ/FgH1Ldvv1h6KXLcpMMM9OVFR/R4 AAABbDixkhkAAAQDAEcwRQIgT+U4YDG3AcsZThq7BzZR5hx9Iubz9CkpYJZGe9zR g0kCIQDTV67KkmMNFzVIjM9W1jds0BOmmTuGX0PzyLKwqsy2wDANBgkqhkiG9w0B AQsFAAOCAQEAQus7UKsHiNYk5N9+uriKJ4oIFDAv55XO3Ne717gVoplOjqMm63Dm 9iopFb88J8jSn7aUZ2tLf6iYpgGLYpZ64VDkXo7b6kM89K3OBW37T0wtRIdaWJYk dK9u5j3cslV1zNIXW/gE9id31nWiP+VPeSvRTdi64HsLkAr6WJ+icxTr0Q1CT2yu cwNWuDU9aTl7CCcbp3T4OSmXFXDz9toN0OFDAn1vXJ/AC2FiWTmJdjOTy5VWfTvo pdEXtxN8Zfbb8+C+z497UPdu+nuS6f8zyvXoo5+9TYEeVJOnufa1SQNmfpnktADL 6N8d1wHho/Vmfsk7vehVSt2sb/wzpJKolA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA2U4LjVntm4AbRilxWi9Q ygq1wROrcSFsJ1sBZDdlIIBOyM9f461qNvvLla9y2IZcYmUmvmkb+D/obQvAprOM Ti+t3m6C5NxLcue48Hlm8sKcfTUl7SsXfaOrK2GTDwejZzGy/4M9tFy4ZNNGEY5f ugOtQbm168OpS+16iP2DnVhLrnNTYK+6mh0NdXVAfk3qYDDWTRChKJJQ10zqu6Cp ZX0vCk7WjREq46AXB9FuAk/+eMLSoa9RzDDP8AwCejH1eijRIUQ9LBrz2ijqAzBF ApM+vTqozvyywqwFy4YKZaNFssDiSjyBSC6fEVlQlQ50y+qrNJQvqxcIfLB/HZs0 idNQNxf+rRdz5pv7dQyM/Py41ZEdCsZNmDhrV4oy3MQrXGxGS+gQ9Ph3QwiJX0lK irP54HbYiX2w56Bo9r+S5W9vmjHj71ZE+HpoHDHREwPtQrsSNREPYL01lq3xurLJ xW6/IrXX2DtKQmdWzXFrLH5uIabnm8t0jSmvTzs9RLoBXvPUOfP0TtNCnDkGBm6l vGYe9t9d+6XCRcM92RloDLKLHfksZT7PcFU3HUhKLSFK2+fWjmSVDhBA3J1Bfvc9 npScSJQneer68axHzUlahMjnOaKckWuD9UmxNC/rBCMELWXt8NVjGu1nIXsI/LLe TG7Eee6T7G3nYm39sLFpP5ECAwEAAQ== -----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 276442083168804356637800969639350302533010 . . . . . . . . [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 12:07:37 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-26 12:07:37 +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 886526498438841974014854286740257659655346389533096014568255326207691658108605294170350385207511345059291686382341663603363860044239065656543464502930522188967398369923496874779888082514187908935593435604494051030861682075378547639870778745094794816292552296097616918227874287651768413932015165355474365010683964561395354949331069905231968982934406273734823445014244959027221547341215101749959352841457897722859799575659925009583356857004170468752723509684605789567691753553716223294128443206144753618962094878027057246304657494744602538494201139353749741415750664422631510434971307219972332745135427871209749114455834837731390732939824752998330200353566836035199469250102234280617183932369214284527399338976405437626918862394932300026109541467807607040764631435232838872826256112834616719176617377923253729248084533642114777141467339912026661779658220835244908753819272413721550546683718672941751423338875790100790932435660274965842722331711364360536287891114954744714396689943506256989796669007990083614120914084715862863251463951413622052484893110750471644736140200175713857459978529001921918372280811637819093179788806135328446321799249740292201678757492833021233556468006155479032664026003366833610874318787237985596582872563601 . . . . . . . . . . . . . . . . . . . . [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) . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:17|false] . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016c38b1922a000004030046304402206eeceb1cb18e6951a0455ab875711bd6df9c3e68ff9cb8873bd9958a906a4af702206462a3dc26b159d1888697faa4a73a417d5ba99cfbc4a8ab400f5a836f645ed0007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c38b19219000004030047304502204fe5386031b701cb194e1abb073651e61c7d22e6f3f429296096467bdcd18349022100d357aeca92630d1735488ccf56d6376cd013a6993b865f43f3c8b2b0aaccb6c0 . . . . [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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