dnssec-validator.labs.nic.cz

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:6e:98:a6:42:30:34:f3:e4:96:66:ae:e1:9a:65:72:18:14 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): 03:6e:98:a6:42:30:34:f3:e4:96:66:ae:e1:9a:65:72:18:14
Serial Number (int): 298970824075680168625564401348744190236692
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 21:df:e6:70:50:63:6a:20:aa:e6:7a:c8:0a:7d:d5:5c:a6:b4:c6:ae
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): d0:49:78:a2:5a:cc:9d:33:83:d7:65:7b:fc:a5:7c:71:18:a6:a8:cc
Fingerprint (sha256): 17:eb:70:d2:38:ef:35:1e:c4:d0:26:77:94:ba:ba:7d:65:27:2d:f5:79:c4:2f:3a:f1:cb:e3:21:e4:6c:74:2e

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 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 298970824075680168625564401348744190236692
 . . . . . . . . [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 2017-03-09 13:42:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2017-06-07 13:42:00 +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 '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 758775972648964476032607401286483108302943868874992367808732198657978267743637284047052851695498459586858661057137531966017426294286522409253051841873508037229368986166307371613633786407617857459385467894921799032585090061297667357535205802471377973230604271928944769533204016050829728326660582640988426301989830124200675749555992699435975268288949368975177961049293887958917193542088302402548492220706125523996995807875365367214288309905294508832302151710604166376883423892602753589406549980536821378092089793106792844662271916065752794442983028864143946869308241743378189661892013590658441986752915125356355554790541609247325716667568088947743121527669792720848731582108529361576388740046666595555195266575378943514296511168693809918758869050526243732352747796652369921740153276612558392479175401020167308565990402693097027740145508210356016940430350499737583342715776446336013738908762878358713912115207936136677625869870256701339890456588569299441571954039107759494024029173884388704779895079162778227554966739662927586629997551173263844735647727839107855020390975477840715527668784901304740190619403992167437074900708945770112898038183788599987824799678680079605900899975424118391515430548958287542764846034763254445105221053567
 . . . . . . . . . . . . . . . . . . . . [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)
							21dfe67050636a20aae67ac80a7dd55ca6b4c6ae
 . . . . . . . . . . . . . . . . [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 '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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