rudspizza.cz
Issued by R3
About this certificate
This digital certificate with serial number 03:4b:67:fb:24:bd:d6:37:38:1a:bc:ef:05:d5:6c:c3:7e:32 was issued on by Let's Encrypt.
With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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:
- DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
- Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
- Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)
Certificate Subject
CN=rudspizza.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate will expire on
Certificate Details
Serial Number (hex): 03:4b:67:fb:24:bd:d6:37:38:1a:bc:ef:05:d5:6c:c3:7e:32Serial Number (int): 286996249809635628270892341556590032420402
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: e7:3c:63:bc:3d:5e:d3:d1:ae:d7:8d:ba:61:e6:6f:26:68:d9:cb:74
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): b5:60:fc:d5:0a:ee:ce:33:70:29:92:bc:b3:f6:2a:22:c1:a6:e6:ff
Fingerprint (sha256): dd:cc:61:8b:47:4e:23:63:b4:a5:f2:27:fb:4b:1c:dd:f3:05:f8:05:cd:6e:e3:84:49:4a:a5:ec:ff:15:ff:d3
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate rudspizza.cz
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for rudspizza.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
*.rudspizza.cz
rudspizza.cz
rudspizza.cz
Other certificates including the domain name rudspizza.cz
(limited to 100 certificates)
Certificate
The complete raw certificate details for rudspizza.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIE9TCCA92gAwIBAgISA0tn+yS91jc4GrzvBdVsw34yMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDA0MTUxMTA4MDZaFw0yNDA3MTQxMTA4MDVaMBcxFTATBgNVBAMT DHJ1ZHNwaXp6YS5jejCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAI2l iny2ZQGRFh+Gz3KruOB11TX8pf9Hz4f3X7TWtFFB/q8+TATmb3u/kHPyVow5vIaw Gp+VM3DQ9eo/Jv+Uo/M+graODbBAPJpxg9UKM0OcwRse5F2GLoNSk99zpvFpvIMM c8ffapc7p9LcqaZFFbV2LkGYeImVexxPJAJaL+7MysO2IQno9xv/rVkENlvx65rm FChsaRX14cBVZjEHHvNyXN9eqMZs62EFv3FkZrQH3a2po+L6xd/Ie99EcENDFDfc 560q98wbtRjh/86ghFoLAcp1HUNfjUY9YqKiUffe4oXlUFXyCaQPiPr1g6EJSjC6 NEO/qJbzqEvHDZljfNkCAwEAAaOCAh4wggIaMA4GA1UdDwEB/wQEAwIFoDAdBgNV HSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIwDAYDVR0TAQH/BAIwADAdBgNVHQ4E FgQU5zxjvD1e09Gu1426YeZvJmjZy3QwHwYDVR0jBBgwFoAUFC6zF7dYVsuuUAlA 5h+vnYsUwsYwVQYIKwYBBQUHAQEESTBHMCEGCCsGAQUFBzABhhVodHRwOi8vcjMu by5sZW5jci5vcmcwIgYIKwYBBQUHMAKGFmh0dHA6Ly9yMy5pLmxlbmNyLm9yZy8w JwYDVR0RBCAwHoIOKi5ydWRzcGl6emEuY3qCDHJ1ZHNwaXp6YS5jejATBgNVHSAE DDAKMAgGBmeBDAECATCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2ADtTd3U+LbmA ToswWwb+QDtn2E/D9Me9AA0tcm/h+tQXAAABjuGoTDwAAAQDAEcwRQIgNhxfnPoI p9/3sjD20QnVa1m8Hh6UaO1Cx3+zxslinz0CIQDg4tbo1ii2sMflAgj2fi1EfQJU /e0/cYWqm0t+9D44/AB2AO7N0GTV2xrOxVy3nbTNE6Iyh0Z8vOzew1FIWUZxH7Wb AAABjuGoTDkAAAQDAEcwRQIgayAl5e8IYQ17mRtqo/h9CUy6Xym4idryFSEN5ohp CA0CIQCzIpSgcmCR0AZSNoyz3G1zuGYvkCXn+kWPLxyWw+rxcTANBgkqhkiG9w0B AQsFAAOCAQEAdQU6DcKleF7twjXAtiGVyJy/9ry+SNvaZYxNXzYIcZ3SZPmHd2rp xvy8TkdeYSYuRFouASgmAfTFsdlxil3bp2RT/wKR1qjs9B1sD5DaCQ7mP5YLW+VW Mrlsb7DcxiWLz6YJvcP2bIuI4pQwG9ndrRpUge/qwH3OzyCVVoHN3Q+L0rAppZtB zFgfX87D36uSHPF9vjDz3Jkoycwj/L2M7gwDt2txvZfi3rR2kHDs+pxS/0mfBZQ7 8PSri6Wg9KQp865X8GUOvxfe2L/gXxTt+oXfEYXWJMi4UEiSQI3C7UpiTefTifLn r/jMdloHpCP1RftmLTzUza9AwxipxfVtTg== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAjaWKfLZlAZEWH4bPcqu4 4HXVNfyl/0fPh/dftNa0UUH+rz5MBOZve7+Qc/JWjDm8hrAan5UzcND16j8m/5Sj 8z6Cto4NsEA8mnGD1QozQ5zBGx7kXYYug1KT33Om8Wm8gwxzx99qlzun0typpkUV tXYuQZh4iZV7HE8kAlov7szKw7YhCej3G/+tWQQ2W/HrmuYUKGxpFfXhwFVmMQce 83Jc316oxmzrYQW/cWRmtAfdramj4vrF38h730RwQ0MUN9znrSr3zBu1GOH/zqCE WgsBynUdQ1+NRj1ioqJR997iheVQVfIJpA+I+vWDoQlKMLo0Q7+olvOoS8cNmWN8 2QIDAQAB -----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 286996249809635628270892341556590032420402 . . . . . . . . [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 'R3' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-04-15 11:08:06 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-14 11:08:05 +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 'rudspizza.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 17881232292723221993055514743058657358787704923749215470158176339057849831885725561816090226948353600214506655831988577253580993667214290025590579473562713135115714407604584845684768443423890871977461726252320703972328174970432364164697800419584160940050810528028673864493609894436441092085636034289747581959033454073082790027995812966360288142124970162216110128398765967844206873034412462833292084127954532368804892576372093263831325951898218709252021949901678950958889150955778209899305439518019665755506292831834269550664354627855579624228416534721783203494935453098136851610776824198501303872084534002884314103001 . . . . . . . . . . . . . . . . . . . . [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) e73c63bc3d5ed3d1aed78dba61e66f2668d9cb74 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (32 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.rudspizza.cz' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rudspizza.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 (12 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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018ee1a84c3c00000403004730450220361c5f9cfa08a7dff7b230f6d109d56b59bc1e1e9468ed42c77fb3c6c9629f3d022100e0e2d6e8d628b6b0c7e50208f67e2d447d0254fded3f7185aa9b4b7ef43e38fc007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ee1a84c39000004030047304502206b2025e5ef08610d7b991b6aa3f87d094cba5f29b889daf215210de68869080d022100b32294a0726091d00652368cb3dc6d73b8662f9025e7fa458f2f1c96c3eaf171 . . . . [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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