www.masojicin.cz
Issued by R3
About this certificate
This digital certificate with serial number 03:64:b8:43:4f:8d:cb:2a:ea:fb:08:7c:c8:39:86:28:a3:48 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=www.masojicin.cz
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate will expire on
Certificate Details
Serial Number (hex): 03:64:b8:43:4f:8d:cb:2a:ea:fb:08:7c:c8:39:86:28:a3:48Serial Number (int): 295610021936032939584810464586816348005192
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 59:7a:95:b5:7e:80:e0:b9:9b:4d:d7:b2:42:83:08:94:33:88:74:10
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 50:89:7e:fe:07:7d:c7:b5:e4:7a:ba:e7:40:61:13:37:6c:47:7b:eb
Fingerprint (sha256): 90:b1:83:e1:7e:ea:f0:d2:dd:ae:e6:c3:be:9a:ea:9b:47:9f:85:69:ab:57:28:d0:32:4f:14:04:56:b3:82:74
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck the revocation status for certificate www.masojicin.cz
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.masojicin.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
masojicin.cz
www.masojicin.cz
www.masojicin.cz
Other certificates including the domain name masojicin.cz
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.masojicin.cz in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIE+zCCA+OgAwIBAgISA2S4Q0+Nyyrq+wh8yDmGKKNIMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDA0MTcwNzA1NTlaFw0yNDA3MTYwNzA1NThaMBsxGTAXBgNVBAMT EHd3dy5tYXNvamljaW4uY3owggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB AQDT32GGLMR73hRnzAOzLtv9wPCRnUnvWDOya6N7GLuYvPu5b/KLEWVfQ/e2k0GY dDvK3qDNzUREGBVqGEe/MwMHmQmU24N3wjcN9svsIFPeQivY/8tWj4ywpZc1BvoM mPkAGR1dRKPrsbEX8An/bqOL0dzzGVGuLCRisOqx44XMMNOoL+OhmhMAXtkCVRSb EDDQs7kmnfr1mwVMxwr8JB7spHrthnx3xXYcQ0dtDA2g3fJkQsZbp9bvNeENj+If Ae5/TJMNDRnaVicUt1Fr0tN0z5bwIx2YFlIgSnA74n/Rwae2mhmoUajXCmLSdlLI j4oysD4ashBVQ+R9Ppkr/Vo1AgMBAAGjggIgMIICHDAOBgNVHQ8BAf8EBAMCBaAw HQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYD VR0OBBYEFFl6lbV+gOC5m03XskKDCJQziHQQMB8GA1UdIwQYMBaAFBQusxe3WFbL rlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDov L3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5v cmcvMCkGA1UdEQQiMCCCDG1hc29qaWNpbi5jeoIQd3d3Lm1hc29qaWNpbi5jejAT BgNVHSAEDDAKMAgGBmeBDAECATCCAQQGCisGAQQB1nkCBAIEgfUEgfIA8AB2ABmY EHEJ8NZSLjCA0p4/ZLuDbijM+Q9Sju7fzko/FrTKAAABjusXV80AAAQDAEcwRQIh AJDBNsYF1hHtMfUHl3UtrDxTd94ZDSrxDo1kS0Cuc+v9AiARu2U1wYSLKUVuzcw7 x7wIA84oeEHUs2PifQn04CWQFQB2AHb/iD8KtvuVUcJhzPWHujS0pM27KdxoQgqf 5mdMWjp0AAABjusXV+8AAAQDAEcwRQIgW2QTIel/Jy3+Agyx6V14+3KEme6SwuFh kA/5MKMPqrQCIQC2yVNDlAPOB7OVq5XR6MK0LYPVU1IZNTUB6IzS+Uu6ojANBgkq hkiG9w0BAQsFAAOCAQEAf/DtgYgeSyqfDQrji78Tjiy6MCvR644ymJ7tleu0yOCf 6CUKWdf3w+AbWecMguLkd9PRQlwBucwmI8Zp1s700f19r/6vZ2URaa6OVsuMAv8t b5a+o8RqkN9v9P49ZkDb+gm1c8sQpBdV6cBoguHAGFCtF4wr6/qON8aSHKQf6B5b kY/sjibA53RDJKYJDWr3xZIxtxhN+PlxW272hqSeNvjr3zIDVkTQRb5r5+pVT5Tw Jmh5Fwj1bF+yaV00C6OhF3hB7ftP0yvG4V1BatJviVAnZ/wTtc+9ay10A73ImztP HikH2HYapyzxslGwKjljkMsq3ztRL4fZBpclaHopaA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA099hhizEe94UZ8wDsy7b /cDwkZ1J71gzsmujexi7mLz7uW/yixFlX0P3tpNBmHQ7yt6gzc1ERBgVahhHvzMD B5kJlNuDd8I3DfbL7CBT3kIr2P/LVo+MsKWXNQb6DJj5ABkdXUSj67GxF/AJ/26j i9Hc8xlRriwkYrDqseOFzDDTqC/joZoTAF7ZAlUUmxAw0LO5Jp369ZsFTMcK/CQe 7KR67YZ8d8V2HENHbQwNoN3yZELGW6fW7zXhDY/iHwHuf0yTDQ0Z2lYnFLdRa9LT dM+W8CMdmBZSIEpwO+J/0cGntpoZqFGo1wpi0nZSyI+KMrA+GrIQVUPkfT6ZK/1a NQIDAQAB -----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 295610021936032939584810464586816348005192 . . . . . . . . [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 2024-04-17 07:05:59 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-16 07:05:58 +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.masojicin.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 26746435601524586955750522724456228602024022590498321796908010744184101739848293183468307834492361223996797249870810302964827177604725211313517572264261593531789711272594967729492042465673699537929880073573465118867810873892901339128100278349277481876081921856491169257269437155738894595756839596552130042462319676997451846032910313033184766545889197969576249939213551897310406247823402818475071385573847628337680842524512642027189346197990888818832229048050318792333413958412753306230761916691261068036428229304894010892497465324797793576790371654527933370834353106217731819904851271085490246360995761814886984538677 . . . . . . . . . . . . . . . . . . . . [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) 597a95b57e80e0b99b4dd7b24283089433887410 . . . . . . . . . . . . . . . . [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 (34 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'masojicin.cz' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.masojicin.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) 00f00076001998107109f0d6522e3080d29e3f64bb836e28ccf90f528eeedfce4a3f16b4ca0000018eeb1757cd000004030047304502210090c136c605d611ed31f50797752dac3c5377de190d2af10e8d644b40ae73ebfd022011bb6535c1848b29456ecdcc3bc7bc0803ce287841d4b363e27d09f4e025901500760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018eeb1757ef000004030047304502205b641321e97f272dfe020cb1e95d78fb728499ee92c2e161900ff930a30faab4022100b6c953439403ce07b395ab95d1e8c2b42d83d5535219353501e88cd2f94bbaa2 . . . . [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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