martincz.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ea:a3:67:2d:f4:29:bd:67:71:28:e6:8c:fb:28:4f:1b:5e 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=martincz.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ea:a3:67:2d:f4:29:bd:67:71:28:e6:8c:fb:28:4f:1b:5e
Serial Number (int): 341180131556722732443509842615681258822494
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 9c:9f:c0:87:1c:79:07:64:3c:39:23:cc:7d:ea:8f:bf:b9:b5:0c:76
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 71:b7:f3:ff:c5:d0:fe:bc:8b:19:a7:e4:8e:25:35:45:8e:7f:d4:ed
Fingerprint (sha256): e5:54:99:df:4a:3e:78:b7:e1:4f:29:65:72:d0:17:37:8c:a4:07:e7:a5:28:45:5c:29:88:2a:cb:70:2f:78:82

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 martincz.cz

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for martincz.cz

Public Key Algorithm

RSA

Key Size

4096

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

martincz.cz
www.martincz.cz

Other certificates including the domain name martincz.cz

(limited to 100 certificates)
www.martincz.cz
www.martincz.cz
maxxispneu.cz
www.maxxispneu.cz
sni27968.cloudflaressl.com
megamax24.com
martincz.cz
www.martincz.cz

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 341180131556722732443509842615681258822494
 . . . . . . . . [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 2016-12-09 15:42:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-03-09 15:42:00 +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 'martincz.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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 813536093752986680096222023652595432820936646655991552808120105627117960528740728383740323741650358210496391531897326994593528898013169053788175357895688593985473789161782871403631711686919165788575860983303687791984022964667459096534923204782868120227349529938753679085365775760334682119792684160539647678313971482489643913230511552502359542574038471731940929684392691157441673112414088224777734571171560800700865146192599707183777233527710389580172687524313534130901554508568207851842003864588402405239877024569674730999328698518061280783556587657488187476701513948058304563651470846595349553036362154718921015412192534580989668465260848039371949593300765696823484937418021102012378181154092586428093676369128625552878829374514744021897671602229704568314378557792610138667194884506900371790742109431212007613949820243689735387184621526397432291915773326642523811449611973766023474407663891751532286173414667761114180019004190132171580440778202419660438823199475183909248718269917399597732986320058173828638447174041694149285957881497619376106980244730018091784738668212772749998416225387414417224640784805387512205577078746401156810028763386980534477513866738475250974796215002570497133024366738766644194605946183568107564240792837
 . . . . . . . . . . . . . . . . . . . . [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)
							9c9fc0871c7907643c3923cc7dea8fbfb9b50c76
 . . . . . . . . . . . . . . . . [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 (100 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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'martincz.cz'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.martincz.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 1.2.840.113549.1.1.11 (sha256WithRSAEncryption)
 . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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