www.masojicin.cz

Issued by R3

About this certificate

This digital certificate with serial number 04:3a:81:af:38:cb:19:59:9b:c8:84:24:20:e3:19:e3:50:ec 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): 04:3a:81:af:38:cb:19:59:9b:c8:84:24:20:e3:19:e3:50:ec
Serial Number (int): 368357901223768015460009268221265995583724
Serial Number lenght: 139 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): 78:1c:b3:1f:08:f4:95:f3:3b:66:c8:cb:02:be:0f:a4:6f:24:d2:36
Fingerprint (sha256): ed:4c:e1:0e:c4:ca:62:8f:8a:95:86:57:8e:fd:29:21:f1:a1:3e:f1:4c:8f:77:7f:c4:f6:59:6e:f7:b8:21:e6

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check 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

Other certificates including the domain name masojicin.cz

(limited to 100 certificates)
mail.masojicin.cz
mail.masojicin.cz
mail.masojicin.cz
www.masojicin.cz
www.masojicin.cz
mail.masojicin.cz
www.masojicin.cz
mail.masojicin.cz
www.masojicin.cz
www.masojicin.cz

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----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 368357901223768015460009268221265995583724
 . . . . . . . . [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 2024-02-16 13:06:38 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-16 13:06:37 +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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018db23d9e47000004030046304402201bfcc1f285160024ab172874b220cedc2c407e297f5195a4d269d0a9aba492bd02200d50e1d6fba927c0a319fea1236094cd1d2d190e035334b9f8a337be753a0caa007500eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018db23d9e500000040300463044022057770d27aa316d691892b447a03eb0f352895220025b459e2bef1bf01a384f6d022066a1d52b6e1c16733aaca1615cd0253071339a1b4e1b7e9569e1ae5c0f226ceb
 . . . . [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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