www.emak.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:28:69:eb:42:6d:ab:f3:2e:5e:49:0a:0c:6f:20:1d:48:60 was issued on by Let's Encrypt.
With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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.emak.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:28:69:eb:42:6d:ab:f3:2e:5e:49:0a:0c:6f:20:1d:48:60Serial Number (int): 275088942948765569809241079540410117605472
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 1d:5e:2c:45:92:86:97:37:37:09:35:66:17:cd:59:42:39:51:e7:e5
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 86:54:7e:d6:10:ae:e9:b0:9e:87:35:f3:70:e9:d9:c7:56:06:a4:89
Fingerprint (sha256): 64:22:08:e7:11:ec:ad:30:a6:0d:2a:d7:e0:da:14:c0:de:de:4e:ea:f1:f9:b4:8f:07:df:5c:c9:26:4a:f4:2b
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.emak.cz
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.emak.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
emak.cz
www.emak.cz
www.emak.cz
Other certificates including the domain name emak.cz
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.emak.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFVjCCBD6gAwIBAgISAyhp60Jtq/MuXkkKDG8gHUhgMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTAyMjU3MjdaFw0y MDAxMDgyMjU3MjdaMBYxFDASBgNVBAMTC3d3dy5lbWFrLmN6MIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxXk4uigItI/+lcJGNb3GsT2lsFOMib6OCzF5 0a8tTIlKgLHXoKN2zGGrxbANN/rBHIXDSyVWu3YcW4w9ifZRfJ+leAS74Miw6NnZ VbNN5Qgt5RGtWTYdogUNFKp8v6s6Hi2+e9aqbKxLkrmrWJh+5NuTHTENWK386Vbo VZ6JwKp/oS1GuJrHIPSaZ/q7hPHOU8KgSGkOM9PEbET/KISA5YiDXFg73Aajzo6z riqa0oZ03fRPP23gXt8Zk7C/80FPZRX91BoXuBzZZZnhFxEQ09yU0Mvsc61uwjb1 PUdrTVyhntvVneoxCpEBdIEhU04dO6WT8bQzeFiZZbnfiakmvQIDAQABo4ICaDCC AmQwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMBBggrBgEFBQcD AjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQdXixFkoaXNzcJNWYXzVlCOVHn5TAf BgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEFBQcBAQRjMGEw LgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5jcnlwdC5vcmcw LwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5jcnlwdC5vcmcv MB8GA1UdEQQYMBaCB2VtYWsuY3qCC3d3dy5lbWFrLmN6MEwGA1UdIARFMEMwCAYG Z4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMu bGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHYAXqdz+d9W wOe1Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFtuBsduwAABAMARzBFAiEAv0ei DiWSo9Tfdq5Mwfx9vznqc9GdJLHD9493WAue+jUCID8zm7Iyhz3t66Jds2HNQZDU BfmzA8E9b2X7tiOt6seYAHUAKTxRllTIOWW6qlD8WAfUt2+/WHopctykwwz05UVH 9HgAAAFtuBsdqgAABAMARjBEAiBnA0wA3ZSTcNL6X7LoBQUqoUp47BL3MBj+oN1X MBv3wQIgW15KZVEppYpMOHmZqNn48J23dwqWhgcGvgDnBmDktZ8wDQYJKoZIhvcN AQELBQADggEBABB3+08oxrwtb1SYmFkvRvzhqOc1SAA8D7rkQ7So303QJf+sF/Le CTLeEEnM0sdfKZJnTwBIKQqGk76P+as/Xx4Rhr2jml8oyWhD9eY0fFUwuPJuH1K3 vs7mV1itoXtyiw4hGEMlcB65bmjeCrvfrY7dp5Y/IUL6V6OCSOB4RsEw4TdTEXI/ mfHGMwXSxXWWoN6AW9/fNq0Oyl/fSJ1eVqarLyFQqGwhMo+7fmJfh+SSj+xZnxyk h6VEIKKeTXz5eTp+u0K9BYyxej3CLxRVizJHzWTBEFSWuawA2EV1YVZuEAIQR+8q sjpFooGoP8jEUT4+ure+3etZOdjfxojUD9c= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxXk4uigItI/+lcJGNb3G sT2lsFOMib6OCzF50a8tTIlKgLHXoKN2zGGrxbANN/rBHIXDSyVWu3YcW4w9ifZR fJ+leAS74Miw6NnZVbNN5Qgt5RGtWTYdogUNFKp8v6s6Hi2+e9aqbKxLkrmrWJh+ 5NuTHTENWK386VboVZ6JwKp/oS1GuJrHIPSaZ/q7hPHOU8KgSGkOM9PEbET/KISA 5YiDXFg73Aajzo6zriqa0oZ03fRPP23gXt8Zk7C/80FPZRX91BoXuBzZZZnhFxEQ 09yU0Mvsc61uwjb1PUdrTVyhntvVneoxCpEBdIEhU04dO6WT8bQzeFiZZbnfiakm vQIDAQAB -----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 275088942948765569809241079540410117605472 . . . . . . . . [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 2019-10-10 22:57:27 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-08 22:57:27 +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.emak.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 24928722672503618655006819784222541008417279860219714425776539655778863123038320912782697191106633702093156696095417526912175566374656668894950402024587183527144183973569918093038785518327255610048724687697965893655551064339119802770307063018946357843336519715329406143385952362714662086068410926689554903931055114694241459165727911973548067134878479563199780230962962856112288681698880992023990423077382839458190869605395997583372600619695498185994661685196448622061183914100248413690119419250143610558624401942202195359820081122615323093545186710686165400183882259337919226086980439173688020945635321135328364406461 . . . . . . . . . . . . . . . . . . . . [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) 1d5e2c45928697373709356617cd59423951e7e5 . . . . . . . . . . . . . . . . [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 (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'emak.cz' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.emak.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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef0076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016db81b1dbb0000040300473045022100bf47a20e2592a3d4df76ae4cc1fc7dbf39ea73d19d24b1c3f78f77580b9efa3502203f339bb232873dedeba25db361cd4190d405f9b303c13d6f65fbb623adeac798007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016db81b1daa0000040300463044022067034c00dd949370d2fa5fb2e805052aa14a78ec12f73018fea0dd57301bf7c102205b5e4a655129a58a4c387999a8d9f8f09db7770a96860706be00e70660e4b59f . . . . [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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