www.nustage.nl

Issued by R3

About this certificate

This digital certificate with serial number 04:f2:2a:09:86:ef:42:1f:72:a4:9e:a0:2c:e2:5c:fc:a0:84 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=www.nustage.nl

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f2:2a:09:86:ef:42:1f:72:a4:9e:a0:2c:e2:5c:fc:a0:84
Serial Number (int): 430853353565201669783710975261879142490244
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 5f:a2:77:47:4f:c8:1b:31:f3:22:91:c7:32:1c:4f:da:36:01:7e:29
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 1f:d5:97:1e:d5:59:70:37:f6:2e:87:a0:69:0a:9b:2c:b3:e6:78:78
Fingerprint (sha256): 00:af:06:f8:68:a2:ca:97:7d:fb:12:d9:c0:35:f1:d0:75:fc:f9:cc:22:24:92:ba:46:03:10:32:bb:e3:0c:7c

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate www.nustage.nl

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.nustage.nl

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

nustage.nl
www.nustage.nl

Other certificates including the domain name nustage.nl

(limited to 100 certificates)
nustage.nl
www.nustage.nl
www.nustage.nl
www.nustage.nl
www.nustage.nl
www.nustage.nl
www.nustage.nl

Certificate

The complete raw certificate details for www.nustage.nl 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 430853353565201669783710975261879142490244
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-28 23:35:08 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-27 23:35:07 +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.nustage.nl'
 . . . . . . . . [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 841369236045055216095301267967252675940894661244687617522656786466512923452154978171954592561426327570933048166769576574643739083045412712405188506250571453396462375254513240822539236059110875707631682604848770556155036473817726737172930463398167182488967895326921411662050326255935725670088099441909839753872720107466776058174570857703310735993455084564326612356459930628161588577585514144923058691416193697954472773295671389582556547226250895865674149352028335564384292334687944331908594470055987735528501857521550143267852158655507758144868021277733696923778371514325616012761151122646281266268270444268226018159157125518122946568611261520583104812684494514758448523182439353124944112548677366112043831703822535889379157689833831424631281572825838344031337580418968622750742459286163616569968861324317394681491382792908323524616649243071529405060914954393676459693396768816394627973551327979827058598823845525917267302057853795406072504710899949765639741942930098655092743138707785618322845743106685092673857936883414848808581345057467073440612095027026499989246849035351663258523445992097458292534641562269324366107738662341230029611100188831200483657349258685797376432789436649042496877957450379570852718176417565806051433015717
 . . . . . . . . . . . . . . . . . . . . [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)
							5fa277474fc81b31f32291c7321c4fda36017e29
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'nustage.nl'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.nustage.nl'
 . . . . . . . . . . . . . . . . [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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018cb2ff0f290000040300483046022100c73707680fbfdb467725a480bcd52275457db590bf103ce90cc5840429c41afc022100bacf0d62beae2aa8e6dcffda64420f105ffd95157d794147247daeef0eddce9000770029d03a1bb674aa711cd3035b6557c14f8aa78b4fe8389449eca453f944bd24680000018cb2ff0ff50000040300483046022100e7b08e6697cdfebf4fba87bdbd0a52d03bc6aae9e9ee8f57feb91ea3801c0a15022100ecea6cf3fbac3f1060ae47d8e7e7b35e0522840fc3e002466ac850c04cd14111
 . . . . [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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