www.skaldo.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:66:94:c0:f7:4f:a1:31:fc:f0:c1:a7:37:f2:6a:5a:3c:59 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): 03:66:94:c0:f7:4f:a1:31:fc:f0:c1:a7:37:f2:6a:5a:3c:59
Serial Number (int): 296243386901653553908243751267935958219865
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b6:b2:fc:d4:4f:ac:7f:b2:c3:02:90:99:1f:ba:03:ad:b0:4a:4e:4b
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 96:47:7c:59:6d:b4:cf:cf:a1:54:60:59:31:e0:eb:54:04:72:e7:f7
Fingerprint (sha256): 54:0b:4f:ea:94:43:c5:3b:db:7d:f5:ac:15:8f:98:14:e5:90:00:51:bd:9a:86:e3:1f:75:76:08:2e:05:aa:85

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 296243386901653553908243751267935958219865
 . . . . . . . . [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 2017-06-30 21:05:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-09-28 21:05:00 +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 '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 721747534424898976395673630933699649970338670832278321431345140390855551381412234024789335266169529271592701119738389866229328932659236104651564673666956653044672828996432573311898565532606090869763831876197627313694099000644942235878985049574338351889153629095833568200306952972731007096546717650525857577025230872672627031998942986422479119073052165016693079793464936269283483507014984010709871949361671000150695968912175338521199250812581552052702331267613976581047849101358529412813939642798070438279693654316172330387175452324111477277999564811774947195929409461708941175333204179727544027574351965694080861370178216608462653274465252126357853694628840449647006692098071080153281713441239393163674335368931973368394488772597400557581012542551081002109909557264560302920795587815734855540795999200327039940428061606950101329800186894829927082818558850612430886429024657713945829244609713572314843620676498062372640667894990833647767433910903627042064248361985290778142476901797929222820617931951437646365862169946460228538206555334323500691273784226587983998863990474556417995944331486058965157320131320438538678885035519699034154373857238454347225530375706894850826456060912565425743243700714232265806701831091248696775471470251
 . . . . . . . . . . . . . . . . . . . . [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)
							b6b2fcd44fac7fb2c30290991fba03adb04a4e4b
 . . . . . . . . . . . . . . . . [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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