www.kzw.net
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:1c:26:c1:5b:f0:a3:4f:b5:a8:41:93:59:7d:af:cc:ed:13 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): 04:1c:26:c1:5b:f0:a3:4f:b5:a8:41:93:59:7d:af:cc:ed:13Serial Number (int): 358028564642725362943690928098479092591891
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 2a:54:7f:35:81:d4:de:8f:e1:1e:3a:89:f7:2c:7c:4a:54:00:5c:a0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): cc:c7:db:35:8a:de:5e:5d:4b:66:48:ef:63:24:24:dd:2c:5b:a6:33
Fingerprint (sha256): 10:06:7e:5e:61:7c:63:bd:ba:4c:d4:df:84:ab:e9:9c:f1:b9:78:0e:5c:01:8b:c7:57:70:78:a9:ec:9c:d4:ef
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----- MIIGTTCCBTWgAwIBAgISBBwmwVvwo0+1qEGTWX2vzO0TMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDA0MTIxODI4MDFaFw0y MDA3MTExODI4MDFaMBYxFDASBgNVBAMTC3d3dy5rencubmV0MIICIjANBgkqhkiG 9w0BAQEFAAOCAg8AMIICCgKCAgEA5CdkYqJwtBndOWS6WkAezGm0H0/+KEmFRt57 R7EGCsczviVz/hQWfELLWFyHMhlfseHd9TehTL77bQDRZy40u92XbgQqfmXl1rF9 cOVmbrpJztMCcFII/oUT6YpXlhK3Njhar9F9RB2/kwZLDtpeQOCamI32ZGmm6GoY 0NB7JPdmpteaFkdk6JcTy51oyHya1uguGxyFH93kSdIqIUL6Xrh2zzdbZUI+g9LM RpfrHJEZGVUtiQFCrWCZ3cnR85igvYb8aUS+ErtZXI9KeYHxufRPglYm9uyBwEPT ozNDuZXU9lR3OBQi5eBJd6XMNaUB1sa2LF3HPEoIz5VdTej4f0zB5LqtM1RA0ijo fRrm2EN45a30mgnry1Zhb+YZ+XkDv3HiqQ8P1MJ6p2f7mrb0cEdIE0D4wVQSc9kA zaLZTrBP7TmKx5yiTKGh95rRqVf0vkIVoHH4X7QJnxIFZNIsekOkjbmPPVOLytGQ GNBIXBlWF8AN0nBaQCN/nAkmt6D+LO26uFxt+tc6tzgg2sTe+99fZfDbthhDWyGp s5PsSJ/wa3e+lUBqLAW7bkxK50b/c2KEHk3mGrS91JJt1EQi0G4TaqeQ1jtXYkfL FV1pWWkQYOp2/Ly4wc54dq5ex+kbqJuus+4k5OIHFMzgXA+ywSJtvfh9cfhasHRG 80st6vkCAwEAAaOCAl8wggJbMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggr BgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUKlR/NYHU 3o/hHjqJ9yx8SlQAXKAwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEw bwYIKwYBBQUHAQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMu bGV0c2VuY3J5cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMu bGV0c2VuY3J5cHQub3JnLzAWBgNVHREEDzANggt3d3cua3p3Lm5ldDBMBgNVHSAE RTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYGCCsGAQUFBwIBFhpodHRw Oi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB1nkCBAIEgfQEgfEA7wB1 AOcS8rA3fhpi+47JDGGE8ep7N8tWHREmW/Pg80vyQVRuAAABcW/c6+AAAAQDAEYw RAIgQOA/wmxpV5Zv/TKGsZ8ZO7OLqs2Ozxs9fmL/UwFVHQ8CIE8JJGpja4q7pf5/ MAajgpBGQujTupIxTaVa+n2kHigxAHYAsh4FzIuizYogTodm+Su5iiUgZ2va+nDn sklTLe+LkF4AAAFxb9zr1gAABAMARzBFAiBmnd2VYUabxP/CvOQD5evWBQsMesO2 AMdc/KQfsd0BywIhAM+Kkc/+PZJzLJuakyjbmwztRsb47C8w2W1RnHuPUjkrMA0G CSqGSIb3DQEBCwUAA4IBAQBU5FW4fcmHFdli4Zueb7zloiDTW8jrNzmeZvx2GJQB 7Z/t5m+QwfbkQRuwRIxHOdGPhEIeb7ftW53cq4AeiTNLSPMoWGQDvPS/guJte3Om /4Mt3G0B8RDeDmmdPmVd5r6XoEH9eo6t5Cz9neg22+rV/8LRP3aHO2c0C6vyPhmK 4bIfus+DjiDxmR/jZPHosIh46WGSMOTD/SYhnoSSzOn1q5bB/GrzSQnd7g+fBVEz kdlHz77w6wvST45jzJRvBW7JcqdcOhmMcb34MiAbEY+e6oMtmwGaF8NxYLD/SNo6 is6tpnXJdBioLRlZuWJBd8r4HvhOfzqZEXn86gvJ+SBd -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA5CdkYqJwtBndOWS6WkAe zGm0H0/+KEmFRt57R7EGCsczviVz/hQWfELLWFyHMhlfseHd9TehTL77bQDRZy40 u92XbgQqfmXl1rF9cOVmbrpJztMCcFII/oUT6YpXlhK3Njhar9F9RB2/kwZLDtpe QOCamI32ZGmm6GoY0NB7JPdmpteaFkdk6JcTy51oyHya1uguGxyFH93kSdIqIUL6 Xrh2zzdbZUI+g9LMRpfrHJEZGVUtiQFCrWCZ3cnR85igvYb8aUS+ErtZXI9KeYHx ufRPglYm9uyBwEPTozNDuZXU9lR3OBQi5eBJd6XMNaUB1sa2LF3HPEoIz5VdTej4 f0zB5LqtM1RA0ijofRrm2EN45a30mgnry1Zhb+YZ+XkDv3HiqQ8P1MJ6p2f7mrb0 cEdIE0D4wVQSc9kAzaLZTrBP7TmKx5yiTKGh95rRqVf0vkIVoHH4X7QJnxIFZNIs ekOkjbmPPVOLytGQGNBIXBlWF8AN0nBaQCN/nAkmt6D+LO26uFxt+tc6tzgg2sTe +99fZfDbthhDWyGps5PsSJ/wa3e+lUBqLAW7bkxK50b/c2KEHk3mGrS91JJt1EQi 0G4TaqeQ1jtXYkfLFV1pWWkQYOp2/Ly4wc54dq5ex+kbqJuus+4k5OIHFMzgXA+y wSJtvfh9cfhasHRG80st6vkCAwEAAQ== -----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 358028564642725362943690928098479092591891 . . . . . . . . [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 2020-04-12 18:28:01 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-07-11 18:28:01 +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 930786604811943363590309230197074733105580556221455172554913332574546831009213830791050641326508647638634149683218623918795698623986434062237854085138583335229868915430095165298266062198379929220264769016437521274688163077208844563456079905308205497520374770679185777250896936332773202497347332931149288937193604482812482959929201137790098804517427899590638064322621984759800658618142422813122213488108229982664295165402710382744536237568767705577325190998036943199657920503128428819354914105900932400203400249843268104607903289266001239850563319829759274086549858571490346209680041522816814371124663089034966952429364649586831758051960475147760086931212235268923706595659827720589939260162709749986595099974718261939751042036062047187857017954339666896414671476163408823172863818321567889917726170082990090299495688076425775630030745707302788963967102953191120739237444889862136581361844095819689152600120835086569026438871459311276759783133104703732191519579118470737875834971382701827387760712901667081531964558484199537007087515020648218077634620711552615340931697830497290860236924039646489993930544834485847783777010424541540623501673080674258782359129308983230300135432833788680562683935084645485440322225641725115703583697657 . . . . . . . . . . . . . . . . . . . . [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) 2a547f3581d4de8fe11e3a89f72c7c4a54005ca0 . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef007500e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e000001716fdcebe00000040300463044022040e03fc26c6957966ffd3286b19f193bb38baacd8ecf1b3d7e62ff5301551d0f02204f09246a636b8abba5fe7f3006a382904642e8d3ba92314da55afa7da41e2831007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001716fdcebd600000403004730450220669ddd9561469bc4ffc2bce403e5ebd6050b0c7ac3b600c75cfca41fb1dd01cb022100cf8a91cffe3d92732c9b9a9328db9b0ced46c6f8ec2f30d96d519c7b8f52392b . . . . [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) 0054e455b87dc98715d962e19b9e6fbce5a220d35bc8eb37399e66fc76189401ed9fede66f90c1f6e4411bb0448c4739d18f84421e6fb7ed5b9ddcab801e89334b48f328586403bcf4bf82e26d7b73a6ff832ddc6d01f110de0e699d3e655de6be97a041fd7a8eade42cfd9de836dbead5ffc2d13f76873b67340babf23e198ae1b21fbacf838e20f1991fe364f1e8b08878e9619230e4c3fd26219e8492cce9f5ab96c1fc6af34909ddee0f9f05513391d947cfbef0eb0bd24f8e63cc946f056ec972a75c3a198c71bdf832201b118f9eea832d9b019a17c37160b0ff48da3a8aceada675c97418a82d1959b9624177caf81ef84e7f3a991179fcea0bc9f9205d