www.cbdata.cz
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:ff:27:e4:23:73:a7:4a:ed:f2:28:dc:0e:90:b3:9a:1c:6c 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=www.cbdata.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:ff:27:e4:23:73:a7:4a:ed:f2:28:dc:0e:90:b3:9a:1c:6cSerial Number (int): 348161885814686755180542369351874863832172
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 22:c0:c9:a7:43:5d:e4:12:9c:f8:25:b4:10:22:e6:14:37:47:c6:fa
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 18:c8:41:b1:de:44:ab:f3:06:8c:07:9f:2b:65:e4:5f:15:79:9e:e9
Fingerprint (sha256): 87:60:9f:62:30:1a:b4:b6:d7:0b:7e:c1:8e:7f:36:3b:29:31:6f:53:90:03:1f:e7:fe:08:05:b8:da:01:02:cf
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.cbdata.cz
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.cbdata.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
cbdata.cz
www.cbdata.cz
www.cbdata.cz
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Certificate
The complete raw certificate details for www.cbdata.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFXDCCBESgAwIBAgISA/8n5CNzp0rt8ijcDpCzmhxsMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAxMDUyMzU0NDdaFw0y MDA0MDQyMzU0NDdaMBgxFjAUBgNVBAMTDXd3dy5jYmRhdGEuY3owggEiMA0GCSqG SIb3DQEBAQUAA4IBDwAwggEKAoIBAQC4MShjNZCKqQKzkU5r6mw6/IHIA1POTa+M wSdiauCKxeeLaj/691kSizb62/6XjFGRyTuopmi0MXdDH4uK4/nY+zq7bfY43gIw W17BRYvmZUmuCubYMz6g74TDzKP540woQbaIVX0a/lXtP6Be3tFMYzxpnt/TIT1g ddIU10pNG3ioNU8xH3UR7SQdaswjFcXc8gKOyMrmAyJuL6xWqnrYBGUnNjoE66yU 71+wjrEaZdeTAijecsCmObZS9U+ADkZFncbZCuwRhcdXUGOprO9SVz4iwtBtCxLM NREW4NqhPL9wWtVk+0XYtTGKzPxznnRz7/0t2DYPO3WLTGnbMmZrAgMBAAGjggJs MIICaDAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUF BwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFCLAyadDXeQSnPgltBAi5hQ3R8b6 MB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMw YTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9y ZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9y Zy8wIwYDVR0RBBwwGoIJY2JkYXRhLmN6gg13d3cuY2JkYXRhLmN6MEwGA1UdIARF MEMwCAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6 Ly9jcHMubGV0c2VuY3J5cHQub3JnMIIBAwYKKwYBBAHWeQIEAgSB9ASB8QDvAHUA Xqdz+d9WwOe1Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFveFjfhgAABAMARjBE AiAqI7m0E+B8AmxGs+05+AS0unbH+JecJs17LdWN9koDWQIgDdHSilGTDIT07of8 s36ca1uNjRfvqIeM8zXNDecbWVkAdgCyHgXMi6LNiiBOh2b5K7mKJSBna9r6cOey SVMt74uQXgAAAW94WN+EAAAEAwBHMEUCIQCkGSOAhWo8bn6YXvUzH555cUNO3LS8 /E4NfY1jUmHnvAIgGlJfG68VYku2NipxFMPLRdYJ5UU8jaOZxQvRG2HAtxEwDQYJ KoZIhvcNAQELBQADggEBAEOsVZeMKuH7yYWOGuRz2wTwiGL2+HvT1rL8jrJkCHXa ZCWPsqTzPJo+UiMR53XCzCZrZL+xVi8r+jIqcaIsNeq46fZcXMLyft30Vw1977Db Q7djCGbgnXwksh67bgMhGB1ChHyEJ7PanarSQKNOpDKhZaT0+ZRJYLfoPLiPKYRo 64mkSlVRs3a9wHGS6ZWmTfYG1ikvMoOzNsgxkoXzENA2ErCMZ4QK4CebjnOnLY7R O4d1c0A9f3kecUF+OhjdY95XZU8+r5owS0cEtO6K4H9sjrBt1UmP9RwEoC8pL0bH I0g0yLbMkiY/zs8xSWz9BC0KpQPmAY11EmoxBrqBzuE= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuDEoYzWQiqkCs5FOa+ps OvyByANTzk2vjMEnYmrgisXni2o/+vdZEos2+tv+l4xRkck7qKZotDF3Qx+LiuP5 2Ps6u232ON4CMFtewUWL5mVJrgrm2DM+oO+Ew8yj+eNMKEG2iFV9Gv5V7T+gXt7R TGM8aZ7f0yE9YHXSFNdKTRt4qDVPMR91Ee0kHWrMIxXF3PICjsjK5gMibi+sVqp6 2ARlJzY6BOuslO9fsI6xGmXXkwIo3nLApjm2UvVPgA5GRZ3G2QrsEYXHV1Bjqazv Ulc+IsLQbQsSzDURFuDaoTy/cFrVZPtF2LUxisz8c550c+/9Ldg2Dzt1i0xp2zJm awIDAQAB -----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 348161885814686755180542369351874863832172 . . . . . . . . [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 2020-01-05 23:54:47 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-04 23:54:47 +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.cbdata.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 23252088710550301668204398710693249057594229431972210004355360754094393790972782797332985490062198620638939280179021352666479561865854319972121362251918320574870615218188715667170548992734759495668032580993877903477856122437964458331167814875557108374425540596751045250407563401962042026671038907305043038370465922215879382289439239930045612584115288739394649027319234156633162164717593900313187329334148246786340229187278981718794324019587596018891543277381986789920256342195128635948675647589314397238062216726239307065457756276039460568721442879361706997338843901252197527965828387446674512960931102906552897660523 . . . . . . . . . . . . . . . . . . . . [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) 22c0c9a7435de4129cf825b41022e6143747c6fa . . . . . . . . . . . . . . . . [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 (28 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cbdata.cz' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cbdata.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) 00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f7858df86000004030046304402202a23b9b413e07c026c46b3ed39f804b4ba76c7f8979c26cd7b2dd58df64a035902200dd1d28a51930c84f4ee87fcb37e9c6b5b8d8d17efa8878cf335cd0de71b5959007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f7858df840000040300473045022100a4192380856a3c6e7e985ef5331f9e7971434edcb4bcfc4e0d7d8d635261e7bc02201a525f1baf15624bb6362a7114c3cb45d609e5453c8da399c50bd11b61c0b711 . . . . [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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