dnssec-validator.labs.nic.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:d1:f6:c2:99:29:e2:f3:ae:6a:f4:d9:4f:43:f8:20:bc:88 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=dnssec-validator.labs.nic.cz

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:d1:f6:c2:99:29:e2:f3:ae:6a:f4:d9:4f:43:f8:20:bc:88
Serial Number (int): 332783872980837786091660232070940403481736
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 1f:00:00:b7:33:0e:17:75:95:1e:68:b0:e1:51:a8:24:0a:3b:e2:be
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ae:c9:31:ec:e6:ea:83:66:87:bd:01:f3:41:2b:71:f9:75:4a:83:51
Fingerprint (sha256): 07:4c:36:8d:f2:1c:54:ab:7b:00:d5:20:e1:0f:1e:a2:95:f2:60:c0:ac:75:af:97:8b:9c:a8:65:c9:da:ea:27

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 dnssec-validator.labs.nic.cz

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for dnssec-validator.labs.nic.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

dnssec-validator.labs.nic.cz

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Certificate

The complete raw certificate details for dnssec-validator.labs.nic.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 332783872980837786091660232070940403481736
 . . . . . . . . [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 2018-03-08 06:45:14 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-06-06 06:45:14 +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 'dnssec-validator.labs.nic.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 822721114907475228554875157859569118207827054978136343107618748435953917833606742200470018574995988592203218432963897475859332063477872660941030157438978133172752737062378261389676772985063894098388769567858581771422001103466962705904214603028939168051195759774917249145313814950361548177975088563737290915781223408242134133249769668416265671509269457207982248500277736798537875707588885116533856943821843969633944514183536517189258685816446858180802077239301841485164430038590107285357427716465493052253646668583824338835675970537368829527985167286870190728186286046299233474399787161414934748367563653854838975466227478510910340977997046337721431376898247231404522412585587856899584606398845506959297302394465226570251052529651105990752747939169453855804102938705433750058888964881996733596774488894961846321237874406863474125700741251527794611907502238882809697921978425597500317584768505574653711842587237358962967783009437229615530955673330190901255835535375786695710354673702034973950023902493482753466684019654672493019026615364022678941928965446067156913779982952281665753142795741824695864425585742371706998229702072379415726260704652278332953266569207847483027291737437222938838301185882132265008200625848834821957596081533
 . . . . . . . . . . . . . . . . . . . . [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)
							1f0000b7330e1775951e68b0e151a8240a3be2be
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dnssec-validator.labs.nic.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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