www.relations.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e6:3c:e6:d5:74:1f:7b:58:b3:f5:76:5d:f7:6a:3a:a9:b7 was issued on by Let's Encrypt.

With 3 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)

Certificate Subject

CN=www.relations.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e6:3c:e6:d5:74:1f:7b:58:b3:f5:76:5d:f7:6a:3a:a9:b7
Serial Number (int): 339682754424474600080705291522438348843447
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 96:5f:c2:f5:f7:b6:af:66:9d:f5:4b:2d:17:9f:28:47:44:7a:2d:9b
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 7e:57:7f:06:42:d5:b3:6d:3c:0c:05:45:47:79:fd:bf:8f:53:bb:2b
Fingerprint (sha256): c3:50:a8:b5:af:d7:53:26:5f:1d:e1:74:49:59:b3:4d:86:fb:7d:45:03:e5:b3:40:48:59:98:5a:73:40:03:61

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.relations.cz

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.relations.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

public.relations.cz
relations.cz
www.relations.cz

Other certificates including the domain name relations.cz

(limited to 100 certificates)
www.relations.cz
www.relations.cz
relations.cz
public.relations.cz
relations.cz
public.relations.cz
www.relations.cz
relations.cz
www.relations.cz
www.relations.cz
www.relations.cz
www.relations.cz
www.relations.cz
public.relations.cz
public.relations.cz
www.relations.cz
public.relations.cz
www.relations.cz
www.relations.cz
public.relations.cz
www.relations.cz
public.relations.cz
www.relations.cz
www.relations.cz
public.relations.cz
www.relations.cz
www.relations.cz
public.relations.cz
relations.cz
public.relations.cz
www.relations.cz
www.relations.cz

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4nsDdXGiv8nyPIN5gszA
v6+jnssA4YPptTlAbzdTzvXE2dHacFtEeGZceA6hM455HgxRtwI1ElawoL1Npyjs
OXMWw5mS2WKUzHTrgns4UEQohiDWeWwd+wKj+pvh3PPM6Z4641wjK4GlKEalG/We
NP68POJlnxaxtX/fUHU1Dmmip/ufyzcFeal6nx/c9VfMyj2HIUENSVUzCw9XqJC+
TA4cBIst8NBgM8dQuGfNuo6MdMpAEn2Yj0w4KV6HhSWb0T8jh09YlXzKLmTk51J0
8iSVuvaBLA66U/OyurRVplKj6qeT6hEN5aT07TgsvpggRUwoHcbuliONzAnTmhAu
oQIDAQAB
-----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 339682754424474600080705291522438348843447
 . . . . . . . . [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 2020-01-08 23:47:40 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-04-07 23:47:40 +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.relations.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 28590517145342960045166777074900204385977645531208390601810003967331156974760991715283636232381756914441036072101240419397105815004813988631671328959145468927080257037140885199664424605036775918089579654903546139955643865099703357141671940034581416561500578043837417458870121918048701717952473582962179788929844443942333847254634009533941084314355748552130852413213641370251213508523066254880684405461691280412131762544164362626297092315572511304932841442012550062317041900542375459298847667997823679237455141963746897145089499672061569923214670762480306311912049939778158605358584587888316265853849999309356305231521
 . . . . . . . . . . . . . . . . . . . . [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)
							965fc2f5f7b6af669df54b2d179f2847447a2d9b
 . . . . . . . . . . . . . . . . [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 (55 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'public.relations.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'relations.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.relations.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 (69 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f87c56f68000004030046304402206f8bb96671c6b136c8d0def9c34555fd5d694b50ae8285d90df934bb11537b85022065b08c7939615d9085738cf0dc04ea9bdc2edb8ffc09cb4c0678fa1ca92c96b700760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f87c56f900000040300473045022006650ac0095f9e4b5b1e2c4478fe953f1bdb85a6f455ff9754b7e7a55288cbd4022100a8986cc6191667f9e59f2564a63c5458e5403af02087b493fd4c4920a3a7a411
 . . . . [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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