www.skaldo.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:47:2b:5f:03:cb:5d:20:24:c0:31:4f:20:c6:87:fc:55:b1 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=www.skaldo.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:47:2b:5f:03:cb:5d:20:24:c0:31:4f:20:c6:87:fc:55:b1
Serial Number (int): 285554555995647049803371675638980568438193
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 11:fa:2f:7e:75:b9:4a:cd:55:9a:86:57:49:a9:2e:b5:ed:4c:9e:a7
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c8:17:48:58:f5:15:c1:98:5e:13:0c:25:43:38:d5:92:e8:1c:34:51
Fingerprint (sha256): 56:87:fd:10:5f:93:fa:a2:56:df:30:11:df:c9:d5:2a:10:51:2c:b4:bb:8b:ae:a0:cd:3a:ea:5b:39:c6:00:2e

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.skaldo.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.skaldo.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

www.skaldo.cz

Other certificates including the domain name skaldo.cz

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.skaldo.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 285554555995647049803371675638980568438193
 . . . . . . . . [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 2018-01-11 17:29:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-04-11 17:29:11 +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.skaldo.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 666995913416234108190392107229564843939726378919631222104284762404011153067274651051643278176555649536655135578408868977586294779533001708533034975912489788699115064494447531816565546390011014905481440516433356891868593643878699989241846629260277844974747634113944815743062348574903280216107812196107213381039374522309152482635703563570880930840734934681209846748968037416644976927011291591962289297959404056364785150442792580967765396532230747327425834110076005028552827606123372521326254901486322945844170766997443458886748441266556969564106468242849979256553464401279549506057801186691626226431582332523718156365278655170307651033635400119042293889947087796149841775101794932443667126207930685661134030593883016184932548653632128699854613507474984473787385955016761764278702486581629810199246801283241329542874105601057915605797619625819546317501601206892087664053434461347331232195927420779443874440426065170026554893897007398211211028229404626459630674453914062854138497150703722152819268359727338941118439850080498081259373082010033906899850588585328863883457380136445699568340012703159354390382465935953610574492417632500564166297020356632065145901816097889422232834423620050764165308103786221875643723237494192687052864549883
 . . . . . . . . . . . . . . . . . . . . [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)
							11fa2f7e75b94acd559a865749a92eb5ed4c9ea7
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.skaldo.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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