elektro-placzek.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:10:10:2d:ee:55:a4:2e:b7:c3:89:06:63:97:6c:2c:97:bc 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)

Certificate Subject

CN=elektro-placzek.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:10:10:2d:ee:55:a4:2e:b7:c3:89:06:63:97:6c:2c:97:bc
Serial Number (int): 266802881801305639579303924619169019762620
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: eb:4b:c8:c0:fe:12:42:aa:13:ab:a2:09:85:87:70:d4:0f:d8:ae:63
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 1a:f3:a1:b3:e7:b7:43:65:e7:89:67:2f:ca:14:7d:98:38:1e:03:ad
Fingerprint (sha256): 25:bb:75:db:91:04:54:d6:6f:a3:0c:98:58:85:b5:a5:d5:04:61:89:79:d8:50:ec:4f:b1:df:8b:1c:46:1d:65

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 elektro-placzek.cz

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for elektro-placzek.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

elektro-placzek.cz
www.elektro-placzek.cz

Other certificates including the domain name elektro-placzek.cz

(limited to 100 certificates)
www.alaswaq.co
elektro-placzek.cz
elektro-placzek.cz
elektro-placzek.cz
elektro-placzek.cz
ortahisar.zeplinx.com
elektro-placzek.cz
elektro-placzek.cz
nz.creatoradar.com
youssef.lasheen.dev
elektro-placzek.cz
reg.agusibrah.im
elektro-placzek.cz
defendcanceled.men
gym.lycka.cz
www.science.dev
squash.kevinschweikert.de
games.cwt.team
ortahisar.zeplinx.com
www.alaswaq.co
testnet.freecity.finance
community.mlptf.org.my
connectedmachines.xyz
numerodeserie.fr
share.eblocky.sk
michellevill.centurycard.online
frogverse.cc
reg.agusibrah.im
www.aviita.li
elektro-placzek.cz

Certificate

The complete raw certificate details for elektro-placzek.cz in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkCj7DeZGd5f0n2ATcl1A
+FdiKGoF5t83cppuLOxf7Xs2lwLceUl2P6O62t2Y3En2Dczt3L2f77jSl8WDN2Ki
ttvWnq699qy3Wr6eW0i77u0ycbDWuVsFcAS7w/lpyqwRE9/jCoxUond3V4u7cM43
rZw5HMnQpAvfcKWCPxH45EJM2/fbFNHYKzITe4tZdiO5koyRRjA5F/4naD4ttv6H
fOOT3M+lonZY/xEI/7c2PJnVEohQxHxznInQJa5NdWQH1PpUj50FA6P8O8zb23fG
2Xbi/nUyncGT55aWfFi78CEJkfZbfF0jCbZfdV1whLT44TfB4yNPSyN3meTdpHNL
iQIDAQAB
-----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 266802881801305639579303924619169019762620
 . . . . . . . . [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 2020-02-22 13:09:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-22 13:09:57 +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 'elektro-placzek.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 18198524242009171813834442733007859016045055281393476827506564325043897950261051936747658201882869554494297846213337896351085570241776893121023963061196378850758348726524080903073738193624211779109600269580847349139575735648411382062523984586224582021965774393775744754208546024704083747570068396518392733873928893304632327800278868899011343729917574755813250578001151811293498189365354235605149785276174705087511834679144325027790940860011274756521881236896708375468002765642769130194308883208975202552349043859552562582739192030657820522253372888884947737190858182119244837459203756338994212698012882634789516168073
 . . . . . . . . . . . . . . . . . . . . [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)
							eb4bc8c0fe1242aa13aba209858770d40fd8ae63
 . . . . . . . . . . . . . . . . [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 (46 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'elektro-placzek.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.elektro-placzek.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)
							00ef007600e712f2b0377e1a62fb8ec90c6184f1ea7b37cb561d11265bf3e0f34bf241546e000001706d3bc2b500000403004730450220660ec5a1d530e759f9235668ba48fb93c02070319fa3bd4ba4095dec677f8660022100b4f53bdfa04c682ef8fc8e80e90a94939cbca1109cdc297276780caa4658bb6900750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c000001706d3bc2e1000004030046304402206c8ad35e9beda68f69177768db55e2a3297e4dda065066794c5af2b44f403c85022014e261bfaea07fba08c6ca9c76e3bb32c0bd9b4db6c8dd54415e392f48ba0689
 . . . . [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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