www.ip6.cz

Issued by Let's Encrypt Authority X1

About this certificate


This digital certificate with serial number 01:5c:0c:ed:f0:66:df:bb:4b:89:0a:a4:48:85:b0:54:2d:5b was issued on by Let's Encrypt .

While the 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.

www.ip6.cz

Let's Encrypt

Organization: Let's Encrypt

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 01:5c:0c:ed:f0:66:df:bb:4b:89:0a:a4:48:85:b0:54:2d:5b
Serial Number (int): 118435449874720296065756919837369000275291
Serial Number lenght: 137 bits, 18 octets

SubjectKeyId: 52:f1:fd:4d:de:ad:69:f0:c4:8d:55:44:3a:ed:d7:04:6f:99:aa:4f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 65:c7:d4:03:4b:a5:49:01:82:2a:87:95:a5:60:b1:6e:41:20:03:50
Fingerprint (sha256): 8f:97:27:b6:52:2a:cb:e6:e5:94:4e:d0:ad:59:f6:49:66:3d:4a:4f:6e:b2:f1:1a:88:97:04:cf:9f:c7:58:36

Issuing Certificate URL: http://cert.int-x1.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x1.letsencrypt.org/

Check the revocation status for the current certificate on www.ip6.cz
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


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

8 extensions
No unhandled critical extensions



CA Certificate

This is not a CA certificate

Subject Alternative Names

This certificate doesn't contain any other subject alternative names besides the common name of the subject: www.ip6.cz

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIF+zCCBOOgAwIBAgISAVwM7fBm37tLiQqkSIWwVC1bMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMTAeFw0xNTExMDQwODA3MDBaFw0x NjAyMDIwODA3MDBaMBUxEzARBgNVBAMTCnd3dy5pcDYuY3owggIiMA0GCSqGSIb3 DQEBAQUAA4ICDwAwggIKAoICAQDAUZmQxNRCpo1S9OIe1N0zn2GdacDnDbvjw9Gi 3bzdzWA8U/l6l/PwokFqmPhkoxkTz57noxAaX0zaR6Tt1B0JLiCO1F/vEqqu0ZM5 HcpFG5LF8lAh85lhQ4rVhA1tpc6dkHRr64gS11C30dvSjoBq2/19CmQXiCL9UO2m ZgbzPtxEAwfy2d9K6mN0QbCirahT/RO/CtRIRVGzdcvvamSiwGYmiv38Wa1N4xzZ N8LlQpXPKNM7uIVUVvLjLRxXrKF5d41Y8dCrsliEzrrH6zyzgZvAptepX+/CHp8E bHV/U/kV9CyRK0eU1pZpaXeZmmjpHdtqMI90mTfkSUULqz/FjuFaRaqxkaxIQbA2 KzZ74bnqO7cEu3kAlTUSsLkZ8+hV7v/tXguAt9GirirZblqzxGA1QvFbWunR168z sDg00YMWmPrWSQXNzih9vZr9T9sivk11s+9jdH5+dB9k+gjm0f0lVrIRZHBDfTR1 GoxuWfRRaPPYROVgRcbAq5JymT8AWztJD+CM8J6WpaObtojj72HTnQPrQYhxGCXF jbXW/lLFu/qYTDrYz+lURxGCoC2xLj+l6GMl87UgvEUUy2x6qM88OdqeJsYDd4SQ OxJvogRtGL4ElFJw+fU5gzr8x1FpGQDf+h9WrKfrIlV1gGxr8sMzOmOhgR4HWc+q cirnYQIDAQABo4ICDjCCAgowDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBRS8f1N3q1p 8MSNVUQ67dcEb5mqTzAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBw BggrBgEFBQcBAQRkMGIwLwYIKwYBBQUHMAGGI2h0dHA6Ly9vY3NwLmludC14MS5s ZXRzZW5jcnlwdC5vcmcvMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDEu bGV0c2VuY3J5cHQub3JnLzAVBgNVHREEDjAMggp3d3cuaXA2LmN6MIIBAAYDVR0g BIH4MIH1MAoGBmeBDAECATAAMIHmBgsrBgEEAYLfEwEBATCB1jAmBggrBgEFBQcC ARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwgasGCCsGAQUFBwICMIGeDIGb VGhpcyBDZXJ0aWZpY2F0ZSBtYXkgb25seSBiZSByZWxpZWQgdXBvbiBieSBSZWx5 aW5nIFBhcnRpZXMgYW5kIG9ubHkgaW4gYWNjb3JkYW5jZSB3aXRoIHRoZSBDZXJ0 aWZpY2F0ZSBQb2xpY3kgZm91bmQgYXQgaHR0cHM6Ly9sZXRzZW5jcnlwdC5vcmcv cmVwb3NpdG9yeS8wDQYJKoZIhvcNAQELBQADggEBAIQoyUyQlfRJGnzeksFXtSGX JeNP4SS/fvaRTPXhmhowrNx8E0l+i4xUNbVjbcNvjMdTS/p/+5u2t2ZnUMrf6Mv0 SbP1ZROnTcuxJL1Ms3pdMfkGRPzQ8ft76vZbJO0+nVFDCLfSv6pX3tNcQGxx8ZUf 7DBPY5L70UosYSFopjrGoK9HIXl3I3I5UCrAel/YAFgTTQfIY2kQr17ruSG73aRc 5QZ8N2TToKzJH0cwFRUqDePr7AojlXd1v0d8RFtRJsGqHr+5j+L9+Opuj3kDqZWa +iXBApY+q3EWTDs5DbsdIj0JZ7jLTERYwSrYwEOlvj6SvrupCCzsRWxQSEk/3bk= -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAwFGZkMTUQqaNUvTiHtTd M59hnWnA5w2748PRot283c1gPFP5epfz8KJBapj4ZKMZE8+e56MQGl9M2kek7dQd CS4gjtRf7xKqrtGTOR3KRRuSxfJQIfOZYUOK1YQNbaXOnZB0a+uIEtdQt9Hb0o6A atv9fQpkF4gi/VDtpmYG8z7cRAMH8tnfSupjdEGwoq2oU/0TvwrUSEVRs3XL72pk osBmJor9/FmtTeMc2TfC5UKVzyjTO7iFVFby4y0cV6yheXeNWPHQq7JYhM66x+s8 s4GbwKbXqV/vwh6fBGx1f1P5FfQskStHlNaWaWl3mZpo6R3bajCPdJk35ElFC6s/ xY7hWkWqsZGsSEGwNis2e+G56ju3BLt5AJU1ErC5GfPoVe7/7V4LgLfRoq4q2W5a s8RgNULxW1rp0devM7A4NNGDFpj61kkFzc4ofb2a/U/bIr5NdbPvY3R+fnQfZPoI 5tH9JVayEWRwQ300dRqMbln0UWjz2ETlYEXGwKuScpk/AFs7SQ/gjPCelqWjm7aI 4+9h050D60GIcRglxY211v5Sxbv6mEw62M/pVEcRgqAtsS4/pehjJfO1ILxFFMts eqjPPDnanibGA3eEkDsSb6IEbRi+BJRScPn1OYM6/MdRaRkA3/ofVqyn6yJVdYBs a/LDMzpjoYEeB1nPqnIq52ECAwEAAQ== -----END PUBLIC KEY-----

ASN1 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 118435449874720296065756919837369000275291 . . . . . . . . [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 X1' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2015-11-04 08:07:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2016-02-02 08:07:00 +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.ip6.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 (4208 bits) . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 784592045459116075003571291073379447719376660228745079337868728635416438153729778693467673761773230635666017157819185546187454375927898204696184158418381306578262333354177565123247654333151275382743057432995898113685034406054434898362614135520939499502188988439194753027032495752398885423082711909024211056584953496816253045631669601098036908841935169920720389028947260548865153887784784078009627884047412143012741757978358484676153675770761515001139736410687763309885598501398654184025011479722725856019333703031518606796020162554277247968135143078533291478396261513136945932878816584989712161028682994100892938493033919108898771753460526967838239484638278977878331041762051410690909467426222738356952536515427889450264776387999695625751238319089463433037781021954088874083376974817893326736322976827194100074590583701722184171797460709181796415702479704662956074724796727856926760218421265797326005972111020858912373070613735778930254547270739157762836616489362678540874757778227748508518200859455989318984179536554457545921802106158676426286398679541324675106764484860319532925046828561537044096839948347099572986709278866215363337662315342742524400010531195899521060515834340806350615198540870329512972758274497874786314258933601 . . . . . . . . . . . . . . . . . . . . [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) 52f1fd4ddead69f0c48d55443aedd7046f99aa4f . . . . . . . . . . . . . . . . [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 (100 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-x1.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-x1.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 (14 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.ip6.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 (248 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: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 1.3.6.1.5.5.7.2.2 (unotice) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/' . . . . [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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