wp.ntkcz.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:70:63:ee:2d:39:d1:2b:20:98:66:5a:36:cd:e6:e5:17:40 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=wp.ntkcz.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:70:63:ee:2d:39:d1:2b:20:98:66:5a:36:cd:e6:e5:17:40Serial Number (int): 299581313145950057740590870384556680484672
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: a4:26:89:43:8a:30:43:f5:dd:7c:de:5d:81:68:35:08:cb:9e:4e:97
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 14:b9:8e:82:04:0f:5f:2f:df:b4:01:c1:bc:b3:58:5b:48:c9:e3:19
Fingerprint (sha256): 59:85:ea:35:d7:6b:3f:c5:bb:ed:23:ae:c1:e7:10:ce:db:44:3b:72:12:8d:0f:09:98:81:9b:7a:a5:66:cd:3e
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate wp.ntkcz.cz
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for wp.ntkcz.cz
Public Key Algorithm
RSA
Key Size
2048
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
wp.ntkcz.cz
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Certificate
The complete raw certificate details for wp.ntkcz.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFTjCCBDagAwIBAgISA3Bj7i050SsgmGZaNs3m5RdAMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMDQyMjAwNDdaFw0y MDA1MDQyMjAwNDdaMBYxFDASBgNVBAMTC3dwLm50a2N6LmN6MIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEAl0aM1/DIvAcxLj+CXQiUUAkJkeCbAwBbWpOb 76MzD5MVHxBdtSnlFAYbA4vWvmviXdBT7+1Vmmezcyh+QbmO1vmlfM9HoCyW7yiw 52HogI5GK3Tnp+sEdWJDILrBX5FdPv/fWSm2XCwjS+ZXTV5L0nfwdK596rEa0HMU EHCeJO1DVNysM9Y6P+G8AU8w0k99R2nbyxMq62WcAyK1x+sI50EKlCcBE5dZn+Wq qnzpW0QcVZ8obY9zrmIm6ZxTHPW1keK9Co/kTnjLkUocVP4sEvPM+frAuSFqoq5b s5UYtmKDDvB7rLAx5NqP7e2AY3y3VBmTLdsxZlM+322cQFr6GQIDAQABo4ICYDCC AlwwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcD AjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBSkJolDijBD9d183l2BaDUIy55OlzAf BgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRjMGEw LgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5vcmcw LwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcv MBYGA1UdEQQPMA2CC3dwLm50a2N6LmN6MEwGA1UdIARFMEMwCAYGZ4EMAQIBMDcG CysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5 cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHUAB7dcG+V9aP/xsMYdIxXH uuZXfFeUt2ruvGE6GmnTohwAAAFwEm9I3gAABAMARjBEAiAYbkaotYL3rSAgr7tn oTz+OQg5yZaeebQEquKbWs44GQIgJtlHKWJRryLejfYcgIl6anckEA3zGBXOxp5u q7oiUAgAdwBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAXASb0rL AAAEAwBIMEYCIQDqO4IhbGb6DZEyQbmy00d+FrjqnawWRvjNeux+uchylAIhAK+Z 2yWOKy9Cbb3mIOxsspshxbqOGGNp7DjEk64rFwHlMA0GCSqGSIb3DQEBCwUAA4IB AQAFWSYMPI/AQ9lLuQ+cL7KUnfAcMY0LvCMfH1ypskC4Orsdr/aaBJohsOkf86dV wB4XCyH2oEdyOl4UFHpX6obWbKGFvk7HP6c2V0n76luG4hnUQHmQ2vlTagTNhwHl JX4A5bWSXTpsqWtUDgepHzhrgrleGqveAnm//ZWohS7+9Mn+4cf5osylYbJYf5Tt TU6ntQTULuO8ufEPslv00l5t6EUPFPpCr6Db+ooPGluQJ+eNu0KPzCPL1WUsZoYE 7qlu6JyOO19oYoXwSjPjJDHch8SbYJisuzHK37Rn3/9HiGEsp8An8qx3W1bjTmM2 upuf9am7wSKAGFyVtviFkCxD -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAl0aM1/DIvAcxLj+CXQiU UAkJkeCbAwBbWpOb76MzD5MVHxBdtSnlFAYbA4vWvmviXdBT7+1Vmmezcyh+QbmO 1vmlfM9HoCyW7yiw52HogI5GK3Tnp+sEdWJDILrBX5FdPv/fWSm2XCwjS+ZXTV5L 0nfwdK596rEa0HMUEHCeJO1DVNysM9Y6P+G8AU8w0k99R2nbyxMq62WcAyK1x+sI 50EKlCcBE5dZn+WqqnzpW0QcVZ8obY9zrmIm6ZxTHPW1keK9Co/kTnjLkUocVP4s EvPM+frAuSFqoq5bs5UYtmKDDvB7rLAx5NqP7e2AY3y3VBmTLdsxZlM+322cQFr6 GQIDAQAB -----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 299581313145950057740590870384556680484672 . . . . . . . . [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 2020-02-04 22:00:47 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-04 22:00:47 +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 'wp.ntkcz.cz' . . . . . . . . [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 (2160 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 19096773635323267178150616626776708555948308823838370160041158970626096969384070744084116009138313014896942169306096645565252630701686123331706509012345231629050501436646798397727679838061838306518643081403453288894214017900038259235355068919803981409305290063493871045223031226049737945729375292370083107307181181997342338530813548766263372695530743508931923676726310842257721185449558743023747374794662911076944893696083371426841370290163121293501976063179083711715735055702714335127236604266076478034951268945853329801445272551049496674908278191383331232186052885452118771678480570495168034809106462960567977703961 . . . . . . . . . . . . . . . . . . . . [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) a42689438a3043f5dd7cde5d81683508cb9e4e97 . . . . . . . . . . . . . . . . [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 'wp.ntkcz.cz' . . . . . . . . . . . . . . . . [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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f000750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170126f48de00000403004630440220186e46a8b582f7ad2020afbb67a13cfe390839c9969e79b404aae29b5ace3819022026d947296251af22de8df61c80897a6a7724100df31815cec69e6eabba2250080077005ea773f9df56c0e7b536487dd049e0327a919a0c84a11212841875968171455800000170126f4acb0000040300483046022100ea3b82216c66fa0d913241b9b2d3477e16b8ea9dac1646f8cd7aec7eb9c87294022100af99db258e2b2f426dbde620ec6cb29b21c5ba8e186369ec38c493ae2b1701e5 . . . . [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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