www.permet.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:72:0c:dd:8f:ca:0d:85:52:41:18:ae:bb:c8:6a:9f:ec:af 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=www.permet.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:72:0c:dd:8f:ca:0d:85:52:41:18:ae:bb:c8:6a:9f:ec:af
Serial Number (int): 300146148774215726592843976254632497245359
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 95:3e:c2:0e:02:31:bb:ec:47:1b:d4:7a:5e:b1:39:24:cc:b6:21:e8
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): fa:48:89:51:89:10:c0:39:c3:1a:05:ed:8c:8e:c5:c6:a0:f6:56:af
Fingerprint (sha256): 64:fb:1b:08:41:ab:50:f9:41:a4:3f:40:5d:b5:2a:6e:ff:99:8d:6d:1e:67:cc:76:79:a7:42:fc:c8:05:8d:df

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 www.permet.cz

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.permet.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

data.kulina.cz
permet.cz
www.permet.cz

Other certificates including the domain name permet.cz

(limited to 100 certificates)
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz
www.permet.cz

Certificate

The complete raw certificate details for www.permet.cz in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIFbDCCBFSgAwIBAgISA3IM3Y/KDYVSQRiuu8hqn+yvMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTAyMDIyMzU4MDBaFw0x
OTA1MDMyMzU4MDBaMBgxFjAUBgNVBAMTDXd3dy5wZXJtZXQuY3owggEiMA0GCSqG
SIb3DQEBAQUAA4IBDwAwggEKAoIBAQCv9tc6W/KnVpEhk9WfwzfKczViIW16xI4r
yDVMAdhMNyEKA/i3oDnfhWiIY/BYoUhCc//b1ApBf+1Gwb22V1YcxIR4roG3aovL
MFmNkIus39/0hDyswcriy4xMMIM2wkK7ABQSqwdwSPgK4T5Jf5biuVM2p80QltId
igk6Hu/SWB9FzTmFWF0s5g96elkKvkFLqEcLdr3N4ZDPQ4FZA2quyjeHy+C2OlA4
DVXziJ77fNnMyZ9Lbo9J80oL0NeS2ZQRuTFl174NosvQnXnvuWyOveW3xlwxQdoK
cKbrqqn0yUr0MF2ZGB4Qr2ShkiikolPIZDMpb2OiRY86UAQQhGlLAgMBAAGjggJ8
MIICeDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUF
BwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFJU+wg4CMbvsRxvUel6xOSTMtiHo
MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMw
YTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9y
ZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9y
Zy8wMwYDVR0RBCwwKoIOZGF0YS5rdWxpbmEuY3qCCXBlcm1ldC5jeoINd3d3LnBl
cm1ldC5jejBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYG
CCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQMGCisGAQQB
1nkCBAIEgfQEgfEA7wB1AHR+2oMxrTMQkSGcziVPQnDCv/1eQiAIxjc1eeYQe8xW
AAABaLDcsrUAAAQDAEYwRAIgC9COLR/eGwdX6Pe+2Kbs5xeUMUHINBcdS/xmZeLc
IBoCIDkJEJnCjB7+g0vRsou9m0QWxZMn7huqz6lowdnSTkjUAHYAKTxRllTIOWW6
qlD8WAfUt2+/WHopctykwwz05UVH9HgAAAFosNyyvAAABAMARzBFAiA4CeJT0ef/
Iq3zY9EzQ+uyMspzu4j4dtG16z/LSN7qKAIhAJe3avLEqOG3c4Mk2NdWtDENYkwl
1+/TgO+2AJH/Sm0+MA0GCSqGSIb3DQEBCwUAA4IBAQCaNELCIG7uggI2lEwjobIt
oRSgL5Vhznqx+ltgAcdaoeIoEhOW+7WjsXJ3MvhDeB3m02BMlNXCyHJfdsEWjswA
8swrcdSwCY+5wq9BUCzfUVOrPXlmyqC72DvSGfPM3Why5QUpH9qoDaHiw9IXl3Bx
0wkOF5i6BnaMoNST9CmA1UMLm47f19yEiZuZrd7yDJOXZ8ZWzdmbzim373UsYriT
8Otx2igYsHCuARIOJQEPyWHDS8zAtWpplD/fGP34toZUoxhcCFtVGLec0u7OZ3qV
SYC3enjVo1UTzw44Mj4iRAhR5rKCy2HXHyzHjonw3OwRgppMoNKiNQNXUETT4q2M
-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr/bXOlvyp1aRIZPVn8M3
ynM1YiFtesSOK8g1TAHYTDchCgP4t6A534VoiGPwWKFIQnP/29QKQX/tRsG9tldW
HMSEeK6Bt2qLyzBZjZCLrN/f9IQ8rMHK4suMTDCDNsJCuwAUEqsHcEj4CuE+SX+W
4rlTNqfNEJbSHYoJOh7v0lgfRc05hVhdLOYPenpZCr5BS6hHC3a9zeGQz0OBWQNq
rso3h8vgtjpQOA1V84ie+3zZzMmfS26PSfNKC9DXktmUEbkxZde+DaLL0J1577ls
jr3lt8ZcMUHaCnCm66qp9MlK9DBdmRgeEK9koZIopKJTyGQzKW9jokWPOlAEEIRp
SwIDAQAB
-----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 300146148774215726592843976254632497245359
 . . . . . . . . [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 2019-02-02 23:58:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-03 23:58:00 +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.permet.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 22213425071744129954422781959390134810702565644409240371003666330346618752385376685521881072894253655486383219158219402844034038849545256091557857319545664620875752830773503878505120037299386961015364957105216203130197544281461858691729418813664580300967705215956524180791643339678245241918435961531960422865995890212196920652886377848975235976234759263392840470218436433066128164437054181443975959783038234560178043217845105081563819506937476424248060713560588737326946552742654852825261432901422960005827904929298252883035099955389355924192021333527050285287050747741117421759533489101077426522997062032024815298891
 . . . . . . . . . . . . . . . . . . . . [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)
							953ec20e0231bbec471bd47a5eb13924ccb621e8
 . . . . . . . . . . . . . . . . [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 (44 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'data.kulina.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'permet.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.permet.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)
							00ef007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc5600000168b0dcb2b5000004030046304402200bd08e2d1fde1b0757e8f7bed8a6ece717943141c834171d4bfc6665e2dc201a022039091099c28c1efe834bd1b28bbd9b4416c59327ee1baacfa968c1d9d24e48d4007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000168b0dcb2bc000004030047304502203809e253d1e7ff22adf363d13343ebb232ca73bb88f876d1b5eb3fcb48deea2802210097b76af2c4a8e1b7738324d8d756b4310d624c25d7efd380efb60091ff4a6d3e
 . . . . [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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