krejcovstvi-vyvoj.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:36:2b:7b:9d:de:ef:0b:65:2c:85:2a:fd:77:87:1e:2b:ed was issued on by Let's Encrypt.

With 5 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=krejcovstvi-vyvoj.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:36:2b:7b:9d:de:ef:0b:65:2c:85:2a:fd:77:87:1e:2b:ed
Serial Number (int): 279769904267344708678017624271108634979309
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 90:39:f0:ee:94:4d:e4:9b:31:d7:03:91:8b:30:92:24:51:f2:e7:ee
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 5b:8e:d8:c2:28:51:c6:c3:2b:41:94:d6:b4:51:23:79:cb:82:7a:8a
Fingerprint (sha256): 6b:02:75:b7:0a:d0:c9:5c:73:b5:12:c4:53:c9:cc:6c:bd:38:bb:73:c5:bd:a8:e2:fc:c2:83:36:5d:cb:3d:fb

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 krejcovstvi-vyvoj.cz

5

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for krejcovstvi-vyvoj.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

jidelna.vyvoj.cz
krejcovstvi-vyvoj.cz
vyvoj.cz
www.krejcovstvi-vyvoj.cz
www.vyvoj.cz

Other certificates including the domain name krejcovstvi-vyvoj.cz

(limited to 100 certificates)
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
www.vyvoj.cz
www.krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
krejcovstvi-vyvoj.cz
www.krejcovstvi-vyvoj.cz

Certificate

The complete raw certificate details for krejcovstvi-vyvoj.cz in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFozCCBIugAwIBAgISAzYre53e7wtlLIUq/XeHHivtMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAzMjYxMzA1MTJaFw0x
OTA2MjQxMzA1MTJaMB8xHTAbBgNVBAMTFGtyZWpjb3ZzdHZpLXZ5dm9qLmN6MIIB
IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt/HzcognU+dhzDKhK9T6xrMI
nUK3g8Muazkre3oyl76yX3l4jsZxEIuTpjKa5g6QOHXcjuNauVsq7kLKwjOIjus5
TdQuHq3qbqMkYanvQ+qSYC/ZRzid7QSxKAzBBdM51xIdUzYpIQhoMz/Y8pjcfj+W
M9SXYJYV2DbAAaFkmqy2VqLI+BvXtbvzGD30Ye969BVtwUTidIDm7oaFBlNr6N64
WfrqRvd1QS7DnlFr7g1+F1N4By6oAf0A8IMY3Edx4lNXbRncfU2iVXfa5zCSqUr5
ycKoSayvTmP8ne4sJxYOHY8GLSYKJpOr4cqr7m3eDtKRDkYakZ4HGKfAhB2GfwID
AQABo4ICrDCCAqgwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQGCCsGAQUFBwMB
BggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBSQOfDulE3kmzHXA5GL
MJIkUfLn7jAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86jsoTBvBggrBgEF
BQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14My5sZXRzZW5j
cnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14My5sZXRzZW5j
cnlwdC5vcmcvMGMGA1UdEQRcMFqCEGppZGVsbmEudnl2b2ouY3qCFGtyZWpjb3Zz
dHZpLXZ5dm9qLmN6ggh2eXZvai5jeoIYd3d3LmtyZWpjb3ZzdHZpLXZ5dm9qLmN6
ggx3d3cudnl2b2ouY3owTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMB
AQEwKDAmBggrBgEFBQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggED
BgorBgEEAdZ5AgQCBIH0BIHxAO8AdgDiaUuuJujpQAnohhu2O4PUPuf+dIj7pI8o
kwGd3fHb/gAAAWm6Ub00AAAEAwBHMEUCIFQfLWFso5DnAh50G4XFe5tlpVYRm/gl
d3POu/m8yCkYAiEA/HU36GAst3Ywk3jk+PcpBsE8l0mbYdGqQTuIip+UD6gAdQBj
8tvN6DvMLM8LcoQnV2szpI1hd4+9daY4scdoVEvYjQAAAWm6Ub0fAAAEAwBGMEQC
IHjQjNNp1gcQRA6PUKw0dgmavOmy6Xd05n67vYjSJDU0AiAGotC0WmByNgXUt7ur
a9nJ2vL7oEL66HDEx/lkv3rMMjANBgkqhkiG9w0BAQsFAAOCAQEAXsvZ63NoXUAw
iOv3dE7/A8rn1mtZtBwggujbe7xThmxjXVL6hYqrU31nx0CWlfEqAJQUjNoqxMe6
vfTHssAIQ+ytTyx2K7RhU96vPNcUMTOiKu/S6/5kRal18OOVHXqffr8KikpOGxHA
Don4Wl+U7mBVhdLoY+qQ34DzoZ7qX8GWOcjZdOVyMGMQ9bfjM8AS3zuLxudcZYvf
ogmVajBl24/6OhwtJokguXfk8qt7DUTfa0+5Ds855Xu2GmiChzWTmJzo1ra1IpGP
4Way2XmhfQn6rURwNZfw/12/pMKiFdzbVLIROQkefQdHjOPOzxvAx00iI0CJGxf3
jTSDWQtHFQ==
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt/HzcognU+dhzDKhK9T6
xrMInUK3g8Muazkre3oyl76yX3l4jsZxEIuTpjKa5g6QOHXcjuNauVsq7kLKwjOI
jus5TdQuHq3qbqMkYanvQ+qSYC/ZRzid7QSxKAzBBdM51xIdUzYpIQhoMz/Y8pjc
fj+WM9SXYJYV2DbAAaFkmqy2VqLI+BvXtbvzGD30Ye969BVtwUTidIDm7oaFBlNr
6N64WfrqRvd1QS7DnlFr7g1+F1N4By6oAf0A8IMY3Edx4lNXbRncfU2iVXfa5zCS
qUr5ycKoSayvTmP8ne4sJxYOHY8GLSYKJpOr4cqr7m3eDtKRDkYakZ4HGKfAhB2G
fwIDAQAB
-----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 279769904267344708678017624271108634979309
 . . . . . . . . [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 2019-03-26 13:05:12 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-06-24 13:05:12 +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 'krejcovstvi-vyvoj.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 23220920277066513233146721452216821046702061517151044115777897230163000125426205190666688156529170524545061279698274303990970084573397516994635824795121217476827234706741516865963431947111312673957928341779164918640656361912261754008705092362457513870432554134454360247616408179254509627361272382468155273745623568704296170278891981536614674803971078679212361276595561452764705053387714518291563296869104481287799026084631756435747720869378893259822434284782557973386571120975049401630661196684048197480131590069746424885562605003462844713874346216749584227028105954445617154412966126857764842989487480634722725234303
 . . . . . . . . . . . . . . . . . . . . [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)
							9039f0ee944de49b31d703918b30922451f2e7ee
 . . . . . . . . . . . . . . . . [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 (92 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'jidelna.vyvoj.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'krejcovstvi-vyvoj.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'vyvoj.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.krejcovstvi-vyvoj.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.vyvoj.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)
							00ef007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe00000169ba51bd3400000403004730450220541f2d616ca390e7021e741b85c57b9b65a556119bf8257773cebbf9bcc82918022100fc7537e8602cb776309378e4f8f72906c13c97499b61d1aa413b888a9f940fa800750063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d00000169ba51bd1f0000040300463044022078d08cd369d60710440e8f50ac3476099abce9b2e97774e67ebbbd88d2243534022006a2d0b45a60723605d4b7bbab6bd9c9daf2fba042fae870c4c7f964bf7acc32
 . . . . [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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