santoska.cz

Issued by R3

About this certificate

This digital certificate with serial number 04:6b:39:ef:65:f5:17:d4:f4:75:8f:8f:b6:a8:5a:b4:4a:e1 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=santoska.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:6b:39:ef:65:f5:17:d4:f4:75:8f:8f:b6:a8:5a:b4:4a:e1
Serial Number (int): 384936366010231977592374577127965601319649
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 8f:91:6a:8f:66:83:dd:a2:96:42:98:ea:ad:76:2e:f7:5f:52:58:6b
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): f5:97:9e:a8:0a:3b:b9:5d:b6:dd:71:6b:d4:dc:0d:ef:64:b3:4e:65
Fingerprint (sha256): 8b:be:b7:73:82:3f:fc:fd:57:2c:03:f9:a1:eb:eb:88:88:0f:08:93:49:01:ce:5a:77:e1:d1:cf:af:94:14:ba

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

Revocation information

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

Check the revocation status for certificate santoska.cz

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for santoska.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

santoska.cz
www.santoska.cz

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Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtxZizu8XhZL22GBlXcpp
tvFYPnVCyU6egslqxSQWTpcsQNnKVKrMGy2apcZ/Zo60R9JbgWK+leLD122ygnNa
pdJlkBOE9eR+HUKuwHYPZGoMMI3+KOMVDdFrzlqfi/PNkj4d3jVkkoz3sXOv7vAF
bUz0S9cQuTn1SS0z+RmTgknFwTVdB1uz6+Q/xzXKIq4cGcMBUByLr532OM89iPTG
pO/K/F6L4MqfzocEEGS3FVlFyAw93yrPMqL6iXEcM/fLIT5L10yeUhUjH06qUYqu
4fPrFCsLmiqApj7Ut7vhW5GMRWhKdlzgMuCLubVw24XFKNmwZMR2HMHuwQtBXaZY
bwIDAQAB
-----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 384936366010231977592374577127965601319649
 . . . . . . . . [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 2024-04-01 01:56:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-06-30 01:56:07 +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 'santoska.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 23112648742052747142353594916192051314357917006042414669743158562981429855583121893775229325711377594598061215877201168256632125528561778640169669885887318923663380409850330926809085507326452997544970612260296154625721824743094725206791821856676442772617410185811486197000230425621685655609161911775144971118793311463667662479920012343279225611533112010994503189551543592723181686352358598654234464609862139783319759754863260834622383713015176316775587219531227262184435293261096887005987223028365163694993988137247488230857044723106970293743315205832399529471436000668456819909509486199602806643642989674759228643439
 . . . . . . . . . . . . . . . . . . . . [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)
							8f916a8f6683dda2964298eaad762ef75f52586b
 . . . . . . . . . . . . . . . . [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 'santoska.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.santoska.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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0075003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018e9795eaae0000040300463044022045ea3cd505dd6c834732e5179e65332f80e0a41976c763cb250e2082c61ff9cf022040e55837503205f4a7a56d07b89e0912dbefd342fc02d446b0976675ba4faeee007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018e9795eab3000004030047304502205cd7b00874e74f7c72a202379ce51fdecf09d412d6ddfd937e2d2aca00fd58dc022100ecd16affe5c300374ff10fdceee2d8987213a10bbf760ec9394b0625bdff26fe
 . . . . [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)
		0071a1e00657a9ba1d79e42c8b22645755b9ed697cb5c2a522a6387fef70f45781360ad343119b8bb579f8fda2c6568c66392d671365f2ad755e2ceb45e923421edc82c29454869b1c28867320df3731827ce0d5c363b83e7e9065d59b02f3e961738fc11c0eacc469175425e38174a663ed50e868c3630f62cde7cfe50e1697274897a05f4dec1ded6e927c6f1e871116ce7e4b0cdb3f8387a03137f613655bc3e6dac51c45b5b3680fe002582c9397ec88b9309880f9a1bed6b45196299efd4db9795f93f30e8e78b57779cb236cd0ccb57510c34789c832c75ff594d7cc377bb52d0fe35227ec76432ff1e2c6e8d5988a3d4c39870772f9f9654e6568b293e1