piwik.nic.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:4f:20:6c:1e:47:65:a8:45:0a:97:3c:46:a8:53:33:a2:13 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=piwik.nic.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:4f:20:6c:1e:47:65:a8:45:0a:97:3c:46:a8:53:33:a2:13Serial Number (int): 288262261460089666682426279833071623840275
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 04:13:55:cf:4c:14:73:cf:db:8c:32:c1:5a:08:3c:86:b7:b6:b7:75
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 7a:4d:4d:7b:57:13:bf:76:00:33:d2:74:bf:4f:7a:13:16:c0:4c:fd
Fingerprint (sha256): 13:ff:71:d6:37:ab:61:a1:51:e5:1e:83:5c:09:76:e9:16:68:d2:2a:57:48:cc:31:fa:ba:53:60:1e:e6:0d:c6
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.org/Check the revocation status for certificate piwik.nic.cz
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for piwik.nic.cz
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
piwik.nic.cz
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Certificate
The complete raw certificate details for piwik.nic.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF/DCCBOSgAwIBAgISA08gbB5HZahFCpc8RqhTM6ITMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xNzAxMDQwODM0MDBaFw0x NzA0MDQwODM0MDBaMBcxFTATBgNVBAMTDHBpd2lrLm5pYy5jejCCAiIwDQYJKoZI hvcNAQEBBQADggIPADCCAgoCggIBAMDsZPRFs6vOGXWDgdb4tfzyl1+sH1UR3lS6 RRM7+wadZjuOaC1uipkE+TqzVAq9JYSWPBxd+fsjVAF3OJSYiiHzVwqlXOwiUPGP ABy2lWBqGQMiFX2/4VF9dSj3JeXp8Qu9tv/NZBPGY0lw/SBXX2c68V3J4Trr4sNQ iOKIFFKkvAAiuMbCK4dUrhf4zO/2gfpo2sGwzE7/RJ4fIhWeo6DnnDTMkpxhYxNV zpWyzh/dCzmrmmjQxO7v/w4HaO0W83IglciGY95GcZ1Ike87olYtUasYdBlXdd1H TuH/inNs8jZ+zfY0X+Swe73Mi9yUpeDiWGGFw/hXa0mOU2QnePTcxc4iw9QDqdIG l5/I7sL7al7ikbdzIs/O9DSLY///4tIrmcx4xifp6HJhcgJOe9xljCeOdEUtk9kA o3jMOVydY8LIxaGhLCOFArISQkXArHl1WfgylhKV6IM0ty8UekMgSIpJ+hVA8WHo /MlU9dhUC2C541IVRHmfdpYh8vGyAG3wOiHJJyj4CsAproqP0o4oqDqqt6FLMFy7 dtU0O1n+Sy57aj86rvBu3jMM2+mF/exdQ8AJWiY2Q5ga4ptZEVHdq2RW3vwdol81 As2L2kdzRtlNP/bd1sqs/QnSHYEtQjtYS2mQgyYtNR+XTzfEUufAcvRoVfACtmoY XwBul6qfAgMBAAGjggINMIICCTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYI KwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFAQTVc9M FHPP24wywVoIPIa3trd1MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyh MHAGCCsGAQUFBwEBBGQwYjAvBggrBgEFBQcwAYYjaHR0cDovL29jc3AuaW50LXgz LmxldHNlbmNyeXB0Lm9yZy8wLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBcGA1UdEQQQMA6CDHBpd2lrLm5pYy5jejCB/gYD VR0gBIH2MIHzMAgGBmeBDAECATCB5gYLKwYBBAGC3xMBAQEwgdYwJgYIKwYBBQUH AgEWGmh0dHA6Ly9jcHMubGV0c2VuY3J5cHQub3JnMIGrBggrBgEFBQcCAjCBngyB m1RoaXMgQ2VydGlmaWNhdGUgbWF5IG9ubHkgYmUgcmVsaWVkIHVwb24gYnkgUmVs eWluZyBQYXJ0aWVzIGFuZCBvbmx5IGluIGFjY29yZGFuY2Ugd2l0aCB0aGUgQ2Vy dGlmaWNhdGUgUG9saWN5IGZvdW5kIGF0IGh0dHBzOi8vbGV0c2VuY3J5cHQub3Jn L3JlcG9zaXRvcnkvMA0GCSqGSIb3DQEBCwUAA4IBAQBr5+X1KBzeg8upS0WkKkim 4s15FGa6Av2TfU923fVq16X0XVzWARXYwAlyNqYr82wCyWhrzcTpjcpYWtWN6OwW C8VnIWEJXSPHRhq4gKdKLXSaH5lZbjGL7ZPkv1R2miwk16h9/DYOHH40+JJUmf1w ucokThUYYOmPQzMtsr0M76RT5pe+nWLX2SyTc968/3Znlejt/giRxKE+cXOla+n+ yUEjMuOD4Zjc2Rp19yTm2rrrDZ/UWFibBaTRLiO5CrAWmRdgdUaq56qpaP4kBKqG PZ8EnMT2puu5vpJJY1AolRkqZKsVczgHqa+ttqdRiKxqGWDwI5hmn9z09eCi4FIB -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAwOxk9EWzq84ZdYOB1vi1 /PKXX6wfVRHeVLpFEzv7Bp1mO45oLW6KmQT5OrNUCr0lhJY8HF35+yNUAXc4lJiK IfNXCqVc7CJQ8Y8AHLaVYGoZAyIVfb/hUX11KPcl5enxC722/81kE8ZjSXD9IFdf ZzrxXcnhOuviw1CI4ogUUqS8ACK4xsIrh1SuF/jM7/aB+mjawbDMTv9Enh8iFZ6j oOecNMySnGFjE1XOlbLOH90LOauaaNDE7u//Dgdo7RbzciCVyIZj3kZxnUiR7zui Vi1Rqxh0GVd13UdO4f+Kc2zyNn7N9jRf5LB7vcyL3JSl4OJYYYXD+FdrSY5TZCd4 9NzFziLD1AOp0gaXn8juwvtqXuKRt3Miz870NItj///i0iuZzHjGJ+nocmFyAk57 3GWMJ450RS2T2QCjeMw5XJ1jwsjFoaEsI4UCshJCRcCseXVZ+DKWEpXogzS3LxR6 QyBIikn6FUDxYej8yVT12FQLYLnjUhVEeZ92liHy8bIAbfA6IcknKPgKwCmuio/S jiioOqq3oUswXLt21TQ7Wf5LLntqPzqu8G7eMwzb6YX97F1DwAlaJjZDmBrim1kR Ud2rZFbe/B2iXzUCzYvaR3NG2U0/9t3Wyqz9CdIdgS1CO1hLaZCDJi01H5dPN8RS 58By9GhV8AK2ahhfAG6Xqp8CAwEAAQ== -----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 288262261460089666682426279833071623840275 . . . . . . . . [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 2017-01-04 08:34:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-04-04 08:34:00 +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 'piwik.nic.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 787058867376545711592836457757453504145525561291419626659277939498293341342566958154241812151159569526804951866072108714503565653174228668878802198479652144577101953688737726546579157346960144118744419251999929384995462368939078011898537499205372723070417709405321336491005595101321256591582877342424129313591431106365245104459285208963623103113755066921959205681129019555593369764354481304463758376600955181285679882045559480438408954149806369506355106311130339834603106546137210050503503619765698835662540294482521606337789888382428557275639819652477032071323508904979782799144251183288494584321819674610789562316050826251141791445557922307373655489910171339711557329835830730231560996127910159351474606969788860298945668693441833512676332554774901739440313603653973585512312865804414233244496105101416904279797404149025716680478358686740170102179383795123608316429932551537217862971164279956142865616874473817897131852093889443063952057802574538711200520087776364337851506968223454589032053345475982385848893460392814555527572592998483360417020813428014895433262531772537914207277868253408818968782038102470431606205278434496142476201650827630349667314637893541094560542252728079037049796795560592149910471742021651247425614490271 . . . . . . . . . . . . . . . . . . . . [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) 041355cf4c1473cfdb8c32c15a083c86b7b6b775 . . . . . . . . . . . . . . . . [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-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 (16 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'piwik.nic.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 (246 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 1.3.6.1.5.5.7.2.2 (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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