www.permet.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:93:7d:d5:b9:3e:82:1b:82:b4:0e:28:9f:0a:b5:fd:49:d5 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): 03:93:7d:d5:b9:3e:82:1b:82:b4:0e:28:9f:0a:b5:fd:49:d5Serial Number (int): 311525628948560865532332017439789780126165
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): 82:b4:da:c7:01:6a:26:b2:4c:e7:4f:29:61:46:6a:90:6a:90:ab:37
Fingerprint (sha256): 65:d4:29:0d:4a:c7:36:32:4b:fb:8f:fd:68:f6:d8:2c:3e:11:dd:b9:d5:ff:d4:df:0a:7c:e7:2e:7c:55:c8:2e
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck 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
permet.cz
www.permet.cz
Other certificates including the domain name permet.cz
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.permet.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFbTCCBFWgAwIBAgISA5N91bk+ghuCtA4onwq1/UnVMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA3MzEyMjU1MTdaFw0x OTEwMjkyMjU1MTdaMBgxFjAUBgNVBAMTDXd3dy5wZXJtZXQuY3owggEiMA0GCSqG SIb3DQEBAQUAA4IBDwAwggEKAoIBAQCv9tc6W/KnVpEhk9WfwzfKczViIW16xI4r yDVMAdhMNyEKA/i3oDnfhWiIY/BYoUhCc//b1ApBf+1Gwb22V1YcxIR4roG3aovL MFmNkIus39/0hDyswcriy4xMMIM2wkK7ABQSqwdwSPgK4T5Jf5biuVM2p80QltId igk6Hu/SWB9FzTmFWF0s5g96elkKvkFLqEcLdr3N4ZDPQ4FZA2quyjeHy+C2OlA4 DVXziJ77fNnMyZ9Lbo9J80oL0NeS2ZQRuTFl174NosvQnXnvuWyOveW3xlwxQdoK cKbrqqn0yUr0MF2ZGB4Qr2ShkiikolPIZDMpb2OiRY86UAQQhGlLAgMBAAGjggJ9 MIICeTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUF BwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFJU+wg4CMbvsRxvUel6xOSTMtiHo MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMw YTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9y ZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9y Zy8wMwYDVR0RBCwwKoIOZGF0YS5rdWxpbmEuY3qCCXBlcm1ldC5jeoINd3d3LnBl cm1ldC5jejBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAoMCYG CCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQQGCisGAQQB 1nkCBAIEgfUEgfIA8AB2AOJpS64m6OlACeiGG7Y7g9Q+5/50iPukjyiTAZ3d8dv+ AAABbEp1m6oAAAQDAEcwRQIgG1pUv7OFZLgS+mqY57MqublIDDUEqSLuDvcyW6ke 324CIQD4j6veRA7k8D1bm6MuN13B/tC0RE95+lmKopj/1B4BuAB2ACk8UZZUyDll uqpQ/FgH1Ldvv1h6KXLcpMMM9OVFR/R4AAABbEp1m8gAAAQDAEcwRQIgB/HbnrFj H5KvPWm5tsOapQH3fumXJfNixCLikhQ7reICIQCE1ZCwRt7tMZtSRPUG0634wozh 1g3y8xiiv5PeJ+JEajANBgkqhkiG9w0BAQsFAAOCAQEADj7UErU8tf/q8umQ88/f d4lGKcOJ2Tb0qGkzfsSXXb947KI2R9aexODLg2DTcbWqn8oFzcxshloWCj3ERjbB gDdiSUYdvTKlJglnnykMLVjxv7MiA2rz5qpC3EhrtNpZpTlUVOVs9uKlWgmTtCEd t/FjNusDJX0ZxRxd23Pe6nmDTG3FZUCe4l4rhP6TGQBpv0erQpC/v8gjnjNrQWKv KBM8kLukhs9xz5z5c/jCwtjIh1sVFWsPGjGGwsDeN1qds5U2LfJETCWU+RMccNlN Fb0sIiAqWA5uD7LYATr+NP7ZEYayNyR7EScBhXXXLjmSZRMIh9s0M9nisabuSHOu 9A== -----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 311525628948560865532332017439789780126165 . . . . . . . . [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 2019-07-31 22:55:17 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-29 22:55:17 +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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016c4a759baa000004030047304502201b5a54bfb38564b812fa6a98e7b32ab9b9480c3504a922ee0ef7325ba91edf6e022100f88fabde440ee4f03d5b9ba32e375dc1fed0b4444f79fa598aa298ffd41e01b8007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016c4a759bc80000040300473045022007f1db9eb1631f92af3d69b9b6c39aa501f77ee99725f362c422e292143bade202210084d590b046deed319b5244f506d3adf8c28ce1d60df2f318a2bf93de27e2446a . . . . [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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