www.realityvlukach.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:57:b8:cf:3f:9f:3d:39:3f:d3:6b:94:71:d8:57:72:8c:4e was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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:

  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

www.realityvlukach.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 03:57:b8:cf:3f:9f:3d:39:3f:d3:6b:94:71:d8:57:72:8c:4e
Serial Number (int): 291187077764484558156721885501472011095118
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 27:96:ec:4b:29:54:4d:75:00:3b:4c:d8:ab:92:66:21:43:38:3d:80
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): e4:24:91:44:f5:86:c7:ed:59:6e:d1:c6:73:05:b4:73:be:ce:de:ff
Fingerprint (sha256): 00:18:db:1a:07:57:6c:82:9e:c9:96:d1:94:7d:95:b5:d8:ea:ee:df:2c:1f:49:b4:f7:de:3b:fa:d9:24:07:3b

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate www.realityvlukach.cz

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.realityvlukach.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

realityvlukach.cz
www.realityvlukach.cz

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu1gGarp6r2Fcznuv02kK
u/kwhHDyu9hOYqTaKpmjvOpU5AxdXN4nBekrIYh2A9Ll81S11xAKkcCrTJdfAKzP
D6wP/BL1m1i1xs2PDJumkLkTkcjrxczpL/Sj81y5WKRVy2/e2WDvhVX2fzXkRBws
p+U+/MMPGXZHEY31VSEMkP4gsGzg6t90Adicw1uMcrYnpempKhcwv2vYS4mve5jP
hFjRAsm89HETTKYFfVbq7tr+MZFMMk2l6lB0vIB74IHh4nwo3BQrDAEm+8fwnTQy
V12nJ+ZtDpvtD3dORLh2UE0joIcPyVnpUvkJsSVJ4H8OjYaTNfTK1/udgudngY9Q
XwIDAQAB
-----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 291187077764484558156721885501472011095118
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-04-03 22:43:42 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-07-02 22:43:42 +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.realityvlukach.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 23649969806513340894806056541390629204903726330682370106107302888726420830113680500161138724859738582160382213387696165709079520612169759654981647517754329090322314801057427856792412751546231974794195555589229458848578478261508397733108418200638488846964419465696443435753961165494874426605884606872248004777636768152792907266363215337072321837906044907475511989364100866982291422272554134081009783906435506949695343214236822753291085131508213798510173378109745841481304967000112527245556269074083325105161454345910705769009829904365418381281300539385790047896951049504014881064153140109290558167689668138121032585311
 . . . . . . . . . . . . . . . . . . . . [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)
							2796ec4b29544d75003b4cd8ab92662143383d80
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (44 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'realityvlukach.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.realityvlukach.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 (246 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . . . . . . . . . . . . . [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)
							00f0007700db74afeecb29ecb1feca3e716d2ce5b9aabb36f7847183c75d9d4f37b61fbf64000001628de5113a0000040300483046022100faed779c60873168e0962867aca94a3dd2e5eb0a4234dac30f27b5cb9dd485280221008a6334e637f016917f7586b1cbbcd5209e8bfc2c20a0343c99adaec4bd6fc8b4007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f478000001628de51138000004030046304402206d15832b19f1b34873c93fdab85eef743a699fa4f88505285ea6e5065303947f02204e8eeff0e8edcd019d75f34814b823dc1bf0f0935f634b14d1731d4efd097d5d
 . . . . [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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