flirtkontakt.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:54:57:e4:d0:20:23:1a:ee:47:3d:15:b5:80:d2:59:35:6f was issued on by Let's Encrypt.
With 3 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=flirtkontakt.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:54:57:e4:d0:20:23:1a:ee:47:3d:15:b5:80:d2:59:35:6fSerial Number (int): 377149693449004214431717308619576867108207
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: f5:76:d7:c4:e0:58:c3:09:2a:47:37:4e:1e:ca:bf:a8:21:7b:de:06
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): e3:4c:fe:fc:d8:6e:81:a2:f5:81:bb:2f:f8:a1:09:80:17:7e:f0:d0
Fingerprint (sha256): 13:ca:06:24:c7:3b:7c:4b:e4:b3:9f:97:70:f5:12:5f:3c:31:3f:5c:5c:15:14:b8:b9:0e:2d:ff:f4:31:72:29
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate flirtkontakt.cz
3
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for flirtkontakt.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
*.beta.flirtkontakt.cz
*.flirtkontakt.cz
flirtkontakt.cz
*.flirtkontakt.cz
flirtkontakt.cz
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Certificate
The complete raw certificate details for flirtkontakt.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFgTCCBGmgAwIBAgISBFRX5NAgIxruRz0VtYDSWTVvMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTExMTIwOTAzNTFaFw0y MDAyMTAwOTAzNTFaMBoxGDAWBgNVBAMTD2ZsaXJ0a29udGFrdC5jejCCASIwDQYJ KoZIhvcNAQEBBQADggEPADCCAQoCggEBALD/lruPK8z2/QVgGRemgRiLonpuwoQ0 9DZQcU9cX9dlk2PnpcpXvr9YAoXIOU1xNAIHI0ZYSASFdsuXGE/K6QBCjTdZzW/x +eEPOQhFRZlRNw/9lnVH56vpLoKLTX8ZAFqi40Kr5o0fwllbpQ0qJEy0veaZ3Uiv ZRuEm+ZC5ym7s+r2S2rRtbjt7gOLNQ6MEgdhpr3w9p2wSvDWfwrhNTmBkIod8y4U 9egp7S+4gSgN9dcyF5y4n8499Vzk+sTB7DqmWXTkjbZlD8D+bNHRtmGwV70/Wp1n aIBVjli9I1UCYgcU2Vodwyb4COaNSrcHk5TmW2QyElGL0aKzdPsmy7kCAwEAAaOC Ao8wggKLMA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYB BQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU9XbXxOBYwwkqRzdOHsq/qCF7 3gYwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEE YzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQu b3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQu b3JnLzBFBgNVHREEPjA8ghYqLmJldGEuZmxpcnRrb250YWt0LmN6ghEqLmZsaXJ0 a29udGFrdC5jeoIPZmxpcnRrb250YWt0LmN6MEwGA1UdIARFMEMwCAYGZ4EMAQIB MDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9jcHMubGV0c2Vu Y3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHcA8JWkWfIA0YJAEC0v k4iOrUv+HUfjmeHQNKawqKqOsnMAAAFuXxHJAwAABAMASDBGAiEA2CmqG8D/l1XL jmbaUzj77VbRhKDpkZ1mtdWtyOeZPt0CIQC2mmrKA0Py0S6Ul8UHrEwSl7Sl2g6g 1wl+690AdZ+vlgB1ALIeBcyLos2KIE6HZvkruYolIGdr2vpw57JJUy3vi5BeAAAB bl8RyP4AAAQDAEYwRAIgYy5u8AJcyJ7Qfjr9bHN0uUf9x7t7tSYOg1717VK9bEMC IC4GSD+rvfNvTlgAKkM0kXlGNnWc7ZkASL2LPpPWq4d3MA0GCSqGSIb3DQEBCwUA A4IBAQAuRBpdv1ZRzjgVGd2PLnDq55LPvrRmg2vR0kibYeCyAXy+G4MfzEklBQn+ PNnBp61K322tfA5P4+ThwLGnwQpaEPsXB9Oha5Lm42Hhc8JeDlVvENStNOlRWVHe NDPKWADoYtXNKBlyHwCgqL2sRhwp00mbJf/0WepX1+VCB3kDE5YcJCjLQ8/c0tw0 8aweWKIf2mIsmUhZcKBwMiP8yOFFUdQIBHEpN1k7daw/Wy8XlvuEZp5BLtxJjFcN 6hLLYw5SLbGD1PGjVu2979ZB3Z9NDxxBQyjKWSQJ1Q5TPFtWFerobRbXKH9Qhduk rk5WNIdrxBbDqTb4NS1E2dSIJcgJ -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsP+Wu48rzPb9BWAZF6aB GIuiem7ChDT0NlBxT1xf12WTY+elyle+v1gChcg5TXE0AgcjRlhIBIV2y5cYT8rp AEKNN1nNb/H54Q85CEVFmVE3D/2WdUfnq+kugotNfxkAWqLjQqvmjR/CWVulDSok TLS95pndSK9lG4Sb5kLnKbuz6vZLatG1uO3uA4s1DowSB2GmvfD2nbBK8NZ/CuE1 OYGQih3zLhT16CntL7iBKA311zIXnLifzj31XOT6xMHsOqZZdOSNtmUPwP5s0dG2 YbBXvT9anWdogFWOWL0jVQJiBxTZWh3DJvgI5o1KtweTlOZbZDISUYvRorN0+ybL uQIDAQAB -----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 377149693449004214431717308619576867108207 . . . . . . . . [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 2019-11-12 09:03:51 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-02-10 09:03:51 +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 'flirtkontakt.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 22343977208432574596572262426830007217357673079433975638262785708546958498502209882905551674458160941328604633067054247532105314053695758250967562099025074337649185745274451218604886896811850979703949469711362539731672193017487188949387678404469731926519363481104075872999854825333476977810676289144034226928880628123956314053294410368860635310424931259869823280055544620155093191586465904951743262272148307400227742235934578713569684204395503425776548110941074469407979083963864332344238593637402475124599452424829276268213898377125810699578979340225175516512423339435072624737662060185421267739038010120007152225209 . . . . . . . . . . . . . . . . . . . . [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) f576d7c4e058c3092a47374e1ecabfa8217bde06 . . . . . . . . . . . . . . . . [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 (62 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.beta.flirtkontakt.cz' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.flirtkontakt.cz' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'flirtkontakt.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) 00f0007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016e5f11c9030000040300483046022100d829aa1bc0ff9755cb8e66da5338fbed56d184a0e9919d66b5d5adc8e7993edd022100b69a6aca0343f2d12e9497c507ac4c1297b4a5da0ea0d7097eebdd00759faf96007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016e5f11c8fe00000403004630440220632e6ef0025cc89ed07e3afd6c7374b947fdc7bb7bb5260e835ef5ed52bd6c4302202e06483fabbdf36f4e58002a433491794636759ced990048bd8b3e93d6ab8777 . . . . [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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