perfektnipradlo.cz

Issued by R3

About this certificate

This digital certificate with serial number 03:ea:27:7c:6c:d5:b0:f2:f8:35:a5:f3:0e:aa:6c:71:33:b2 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=perfektnipradlo.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ea:27:7c:6c:d5:b0:f2:f8:35:a5:f3:0e:aa:6c:71:33:b2
Serial Number (int): 341015417598857009331802679174750689899442
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cf:27:43:f4:ce:60:14:3d:24:ee:2e:98:c5:04:2d:7e:72:73:23:36
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 97:2f:74:26:ce:bd:29:8b:3f:64:39:6a:86:de:61:d5:30:50:0b:08
Fingerprint (sha256): e8:eb:ac:b7:bd:c7:7d:e1:5c:7b:f5:a5:0a:91:86:99:4f:f1:29:ef:b7:31:b4:62:5e:ed:7c:cb:d0:82:91:89

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

Revocation information

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

Check the revocation status for certificate perfektnipradlo.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for perfektnipradlo.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

perfektnipradlo.cz

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perfektnipradlo.cz
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www.simplia.cz
www.simplia.cz
www.simplie.cz
www.simplia.cz

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArscgu2ptVTpi29m92Mrk
OLCDmYVsSapTKc2tJzv1EMCL/0NcIxdSYvFv1KpDj8kYmCGrCAwm6flRVwYDz3t4
3XcIuwukAGXZtq4KB9ABw4ChcMP67H+ONHWD25ziUb7sQG8ZehDO7KQumbElmGlq
uAPRC5fo4qzauudk6C6UtFNp3cl1r/S3DflKbyjr7Gy4VUPk91I5wNxESqzPRC0s
TWF/74/jjEGPL8zOQ69pCw0Rknxueyw6oerCNu+Qc5aZI0tUx3ZN3O5t5zQ6mpy5
ywV2QXshCK7r3d8nvLnQL7tkWgkcG4bUqlNg23pQB5nA/6nfzGdgx+RGWfAAkyYU
5wIDAQAB
-----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 341015417598857009331802679174750689899442
 . . . . . . . . [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 2023-11-25 12:35:29 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-23 12:35:28 +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 'perfektnipradlo.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 22063658671456430608988459773928725826667061283663360383980619616936241634628842042614834385663771755362285195604253514176122115443202515218833417904160522155192006788390112482317849696180735325868435740256127291698745507483095130709043628583523341863800870026665776676654530485639305756140903971178145013815677917946352025798414773421595688649297211775537349644513107910588812778229783678629222848708180884479306008366163354355319099774091644553067238819329565532517803537212861223652638994271706701157432069709096797894144146235551840552635585636583052521906479869032170674405165894063940811876666559444395250554087
 . . . . . . . . . . . . . . . . . . . . [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)
							cf2743f4ce60143d24ee2e98c5042d7e72732336
 . . . . . . . . . . . . . . . . [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 (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'perfektnipradlo.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)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c06b144c60000040300473045022100eae5fe9c415b3a1235b2b777cb4310feb48ae2b0c3094b889b34d7449267a25702204b19ff0f3d09f03c054c3e48963de8b9452dfe1815486779e0b423a1bcaea715007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c06b144e30000040300473045022100a6b9a199e2de3e1ae9f9e5b51df5b3bc229b8942509d169b85bb23dd54a5a16e02204a3117534c6febdbcd4a209e07031b92fb098ccaf3d63f839fd094816be2ff6c
 . . . . [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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