elektro-placzek.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:49:ae:64:2e:fd:17:3a:c2:e9:d8:be:7d:7f:5a:bc:a8:49 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=elektro-placzek.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:49:ae:64:2e:fd:17:3a:c2:e9:d8:be:7d:7f:5a:bc:a8:49Serial Number (int): 373521562366264679341432012433013612521545
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: b4:e6:6a:49:f0:5c:f3:26:b2:12:b3:a3:fc:7e:bf:f2:87:40:70:9c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): ad:04:39:a5:8e:99:89:f9:13:d4:e5:49:cc:97:24:92:ef:53:ab:13
Fingerprint (sha256): 10:e8:82:37:ea:49:4e:e5:c5:24:66:7e:69:08:f5:68:be:f7:f8:5f:36:f1:4a:61:77:a0:9d:60:aa:5f:5d:0d
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate elektro-placzek.cz
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for elektro-placzek.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
elektro-placzek.cz
www.elektro-placzek.cz
www.elektro-placzek.cz
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youssef.lasheen.dev
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defendcanceled.men
gym.lycka.cz
www.science.dev
squash.kevinschweikert.de
games.cwt.team
ortahisar.zeplinx.com
www.alaswaq.co
testnet.freecity.finance
community.mlptf.org.my
connectedmachines.xyz
numerodeserie.fr
share.eblocky.sk
michellevill.centurycard.online
frogverse.cc
reg.agusibrah.im
www.aviita.li
elektro-placzek.cz
Certificate
The complete raw certificate details for elektro-placzek.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFdDCCBFygAwIBAgISBEmuZC79FzrC6di+fX9avKhJMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMDgxMzU3NTBaFw0y MDAzMDcxMzU3NTBaMB0xGzAZBgNVBAMTEmVsZWt0cm8tcGxhY3play5jejCCASIw DQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAIcjXcc0BhmA1ZV2FGpdOkyNhITS l5LSQqMT2sjRPX+Z/n65luj67cvfEchGrdZQLXPdp6YWkeBRxdBrlXyYIU87V+gS IFJxlhfvmlChcP/SfsQTsNYF1JPeKKBvLnPwF7j9qwusqZ2wmQlzBFm5LYZBuFL1 m/ofD1J/sl/cKQHRaUYnaM1ckyrnTDl/QmdOvlOY9mWeUDO83SkZpuoXf2Yix0Ni CuLNkZ+VHaXbQw2ZXAooEyJAdjbLul8NTs25u0I9Mgz0NAOvUXDN8YnVGQyZ0hlg s/XtJjn5sjfUR7SKu2rw41EKluA+8HRypgWBBZOw/SsuZLiI4P+vDtwOn/ECAwEA AaOCAn8wggJ7MA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYI KwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQUtOZqSfBc8yayErOj/H6/ 8odAcJwwHwYDVR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUH AQEEYzBhMC4GCCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5 cHQub3JnMC8GCCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5 cHQub3JnLzA1BgNVHREELjAsghJlbGVrdHJvLXBsYWN6ZWsuY3qCFnd3dy5lbGVr dHJvLXBsYWN6ZWsuY3owTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMB AQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEE BgorBgEEAdZ5AgQCBIH1BIHyAPAAdgBep3P531bA57U2SH3QSeAyepGaDIShEhKE GHWWgXFFWAAAAW7mBEZLAAAEAwBHMEUCIDF00t1DeIeJSv/uBrvOTL1DZNOJeTy7 oZkBhxy754pGAiEAkYoavBtI27OjraW38Um+WhS9ZTAClVHXYmBzFCksnngAdgAH t1wb5X1o//Gwxh0jFce65ld8V5S3au68YToaadOiHAAAAW7mBEZYAAAEAwBHMEUC IQDoST13aMxv3DAavkRFRjUEcgswcpoqqZUNNa5LW8Ov7QIgPsg0l9X1FgG3k331 txB4UPVuKaUjOQiezfjyEBhpFv8wDQYJKoZIhvcNAQELBQADggEBAGDhSXv9sq2Q zuT/kkOLovNpYGNQl4XLtaaxX/RQtTtG7/Iazby4nMKFlvWCMUgLsCYKjpY59jex tZJwOOA4dfC5jxc3dSEMis29yX3qYRUU5mhQIdyx/7CM8e8AMeyV0Ct6AcCvLYDJ 9AWkzuuyT/NAQidgMxUoRRlDIgdv+GQaKOIBdJlJz+5PdWVrbLltfpa8E1xHyKOF gog2+e3WwcNwIpfpJzEcNq13/0Df7gIhRaYtfonQQ51CLD7F6+k+I7UcsJ0C32U5 mjssDUqCQfy+DKBwZtmZLz2dgMr3G3708oMhc298hS1Z0i5H7CY08NHcgZdWMWZV t818A6+vuO4= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAhyNdxzQGGYDVlXYUal06 TI2EhNKXktJCoxPayNE9f5n+frmW6Prty98RyEat1lAtc92nphaR4FHF0GuVfJgh TztX6BIgUnGWF++aUKFw/9J+xBOw1gXUk94ooG8uc/AXuP2rC6ypnbCZCXMEWbkt hkG4UvWb+h8PUn+yX9wpAdFpRidozVyTKudMOX9CZ06+U5j2ZZ5QM7zdKRmm6hd/ ZiLHQ2IK4s2Rn5UdpdtDDZlcCigTIkB2Nsu6Xw1Ozbm7Qj0yDPQ0A69RcM3xidUZ DJnSGWCz9e0mOfmyN9RHtIq7avDjUQqW4D7wdHKmBYEFk7D9Ky5kuIjg/68O3A6f 8QIDAQAB -----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 373521562366264679341432012433013612521545 . . . . . . . . [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 2019-12-08 13:57:50 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-07 13:57:50 +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 'elektro-placzek.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 17059610953218598687737889978163119564405705715346644090768740223266280968780689622054272106338394839214203653387712914429753931584604132495877851443278390122367205793107731935106363822711835087824089756233680799067522755379978574217194034276479660103231430781250935785565564743479211045846861800105138628721030517691680610844484390327501703640544029227416695819719545060321746772500665182929389847866672594973742020314752847940753736559678946531078148260352711061904755898347165687596977524249446814145620704882795174981789744775280399698782069825008422951337330444745321774856026591109477903188022915284247839154161 . . . . . . . . . . . . . . . . . . . . [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) b4e66a49f05cf326b212b3a3fc7ebff28740709c . . . . . . . . . . . . . . . . [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 (46 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'elektro-placzek.cz' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.elektro-placzek.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) 00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016ee604464b000004030047304502203174d2dd437887894affee06bbce4cbd4364d389793cbba19901871cbbe78a46022100918a1abc1b48dbb3a3ada5b7f149be5a14bd6530029551d762607314292c9e7800760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016ee60446580000040300473045022100e8493d7768cc6fdc301abe4445463504720b30729a2aa9950d35ae4b5bc3afed02203ec83497d5f51601b7937df5b7107850f56e29a52339089ecdf8f210186916ff . . . . [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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