proexport.cz

Issued by R3

About this certificate

This digital certificate with serial number 03:f8:26:b8:82:20:ed:83:05:28:1c:0f:42:15:ef:80:5a:d1 was issued on by Let's Encrypt.

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:
  • 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=proexport.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:f8:26:b8:82:20:ed:83:05:28:1c:0f:42:15:ef:80:5a:d1
Serial Number (int): 345778353477457332106377961728853766331089
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 86:40:f0:93:66:77:1d:39:21:81:a7:c3:8f:9c:39:2d:64:b5:da:29
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): b7:ee:6b:4d:7c:34:9a:9c:e1:c1:6a:4b:88:e8:2b:b7:6e:4d:d8:a5
Fingerprint (sha256): 45:cf:15:fc:1a:16:18:8e:c7:34:7d:8e:83:89:3f:60:fd:53:9c:68:d9:83:85:75:34:91:86:11:cd:54:e7:cb

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

Revocation information

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

Check the revocation status for certificate proexport.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for proexport.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

proexport.cz

Other certificates including the domain name proexport.cz

(limited to 100 certificates)
proexport.cz
proexport.cz
www.proexport.cz
www.proexport.cz
www.proexport.cz

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA222TU/fihy38HQqFVzBf
bv05norDjjT09xmAvtmBuBixHDjFe7/vd5yeX0whRoH83wfCzY0BE1v9L59vefd3
0c4OIABy8Ds4oJb3uqZ9iXn5Wi3v2E00wIj55sdt3MiwCik4KQHCOFtuvs7P2Gkv
7piB/1nfsvoEivjGqvJCOrNvp/nS6MTlAARXAE7u3lpn4FCaEObNX9H91EZ4bzF0
tQY8QcPG12UbeTpVDgB2e3zn4E+HfidE8IuwJ8kcS/FTj4fty8eH2USeWQbJOXr5
yeiizIJ5l9f1mGhf3/3eP0uG3MbEJoi2rWUoto0jWoU3vIRGDhUQKercpjVPdj8I
OwIDAQAB
-----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 345778353477457332106377961728853766331089
 . . . . . . . . [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 2023-10-04 11:10:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-02 11:10:56 +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 'proexport.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 27700222480482411696036424073741425928908393043877226533737349385376493800731709297482209465527206431680864548086657080657259971897770446641248544297899126274006272647932770991523364212083090642275211599514004867694557824801198890943333936048294575182482153498396960532952713101902384755800986224860286912799879636161249951742978521275067489054306914504141289407092597951337070437752471632015968340530791337809411878523182257433866144638512435917931030265093651944753633956344723411037138303303757791738701189475107964129838847545062624514499614241751982098611000667030534940126486947582702097484208990730641144219707
 . . . . . . . . . . . . . . . . . . . . [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)
							8640f09366771d392181a7c38f9c392d64b5da29
 . . . . . . . . . . . . . . . . [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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'proexport.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)
							00ef0076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018afa99305c000004030047304502205c6d3286d3bf8a9989d287873a5c466f25bbccb487153c19243476776b003c55022100cf701c41b05cd38de35b4789bad9db55de6e8ffd50420e346bac5d53693bbd4e007500dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018afa993065000004030046304402207e286b867e99dc3c5d8b91f1155bf9bda1d6524c75c84654416eb2e9678d4de5022019c11a8e7e66c5cdb256990ed1f782c4109af62976e828180e730e60df40dfee
 . . . . [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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