assets.cdn.nzxt.com

Issued by Amazon

About this certificate

This digital certificate with serial number 05:6d:c8:37:16:a0:7b:61:e8:31:2c:c2:16:f0:e5:aa was issued on by Amazon.

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=assets.cdn.nzxt.com

Amazon

Organization: Amazon
Organization unit: Server CA 1B
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 05:6d:c8:37:16:a0:7b:61:e8:31:2c:c2:16:f0:e5:aa
Serial Number (int): 7216161182977225199002920095325414826
Serial Number lenght: 123 bits, 16 octets

SubjectKeyId: 62:ac:1f:fe:98:15:36:e3:4d:46:f3:5f:41:ff:1e:1d:39:2a:59:bf
AuthorityKeyId: 59:a4:66:06:52:a0:7b:95:92:3c:a3:94:07:27:96:74:5b:f9:3d:d0

Fingerprint (sha1): 7e:07:e5:71:09:48:c5:6d:02:21:64:48:a8:c8:e2:ee:c2:ca:5c:1a
Fingerprint (sha256): 08:4f:a2:5b:5b:5c:62:da:ef:4a:3a:1e:63:55:6e:29:27:9c:79:c5:86:8b:d1:08:47:03:89:48:3a:dc:5f:91

Issuing Certificate URL: http://crt.sca1b.amazontrust.com/sca1b.crt

Revocation information

OCSP Server: http://ocsp.sca1b.amazontrust.com
CRL Distribution Point: http://crl.sca1b.amazontrust.com/sca1b.crl

Check the revocation status for certificate assets.cdn.nzxt.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for assets.cdn.nzxt.com

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

10 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

assets.cdn.nzxt.com

Other certificates including the domain name nzxt.com

(limited to 100 certificates)
checkout.nzxt.com
store.nzxt.com
nzxt.com
q.ssl.shopify.com
assets.cdn.nzxt.com
assets.cdn.nzxt.com
store.nzxt.com
support.nzxt.com
checkout.nzxt.com
blog.nzxt.com
cam-api-production.nzxt.com
store.nzxt.com
assets.cdn.nzxt.com
blog.nzxt.com
support.nzxt.com
info.nzxt.com
checkout.nzxt.com
q.ssl.shopify.com
*.nzxt.com
ssl.shopify.com
support.nzxt.com
support.nzxt.com
*.nzxt.com
q.ssl.shopify.com
nzxt.com
store.nzxt.com
nzxt-app.nzxt.com
blog.nzxt.com
apindev.nzxt.com
nzxt.com
nzxt-app.nzxt.com
apindev.nzxt.com
info.nzxt.com
*.nzxt.com
q.ssl.shopify.com
store.nzxt.com
nzxt.com
apindev.nzxt.com
checkout.nzxt.com
support.nzxt.com
*.nzxt.com
support.nzxt.com
apistore.nzxt.com
nzxt.com
support.nzxt.com
apindev.nzxt.com
*.nzxt.com
apianr.nzxt.com
nzxt.com
store.nzxt.com
*.nzxt.com
checkout.nzxt.com
blog.nzxt.com
ssl.shopify.com
cam-api-production.nzxt.com
cam-ideas.nzxt.com
checkout.nzxt.com
checkout.nzxt.com
store.nzxt.com
store.nzxt.com
q.ssl.shopify.com
blog.nzxt.com
ssl.shopify.com
*.nzxt.com
*.nzxt.com
checkout.nzxt.com
blog.nzxt.com
*.nzxt.com
q.ssl.shopify.com
nzxt.com
store.nzxt.com
checkout.nzxt.com
support.nzxt.com
checkout.nzxt.com
checkout.nzxt.com
checkout.nzxt.com
support.nzxt.com
apistore.nzxt.com
store.nzxt.com
support.nzxt.com
info.nzxt.com
auth.apistage.nzxt.com
info.nzxt.com
*.nzxt.com
store.nzxt.com
store.nzxt.com
apianr.nzxt.com
support.nzxt.com
checkout.nzxt.com
blog.nzxt.com
store.nzxt.com
q.ssl.shopify.com
cam-auth-service-backup.nzxt.com
store.nzxt.com
apindev.nzxt.com
support.nzxt.com
store.nzxt.com
support.nzxt.com
q.ssl.shopify.com
apindev.nzxt.com

Certificate

The complete raw certificate details for assets.cdn.nzxt.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmaMQV/GgaeD+mTE1HReb
lD1hvFGOdsHXmq2Rp9qt2O9yZ3TYr3v+QFG2jwMabdH5eOgop9RKIDkBbN7yGr7Y
aHuvZcKLvwNKnuNLEfLTHHwnV5UVQsoZnuvipitl58VTRYIptFVLJeDE0riGP0cp
4n/ej00nHXSiMOn+FYIHzdjFdXKs0HjOgCKnf731iNJphJUgH+NMBNBc5Y3uF3Ao
5bqkgNWCM2ywvPjmijqAQzxPsoWFi52ZtM1n5xZX783FRVyCRCifcZR8qxfzkuQk
ru8Ef52VAEhbODFDRdH1KJyceS2csJTVQqKZ1Cmr47WE0UbKLJyBPd03ITfBSt4+
NwIDAQAB
-----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 7216161182977225199002920095325414826
 . . . . . . . . [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 'Amazon'
 . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF 
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Server CA 1B'
 . . . . . . . . . . . . [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 'Amazon'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-06 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2021-01-06 12:00:00 +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 'assets.cdn.nzxt.com'
 . . . . . . . . [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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 19394870437169546149571286508304655142162657184899402011820296731930619103450154264798566798561695004743210525971923106610098251297606911183444206592307867819827002131539797037054165076965947288814048767105962699684805180229820245363927474381191387754267664346691793276489158500168489693851696065382127467447376956714112941939976850457979907045339379346229668169274939416771580944334778625018694015001237482806113702948188836097093490697587864963135411331904995408829046972350576855301749685969887818464310666611242749810866036777894625410514708011055277600686556830575479415472324638703875679311994412601544357592631
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 59a4660652a07b95923ca394072796745bf93dd0
 . . . . . . . . . . . . . . . . [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)
							62ac1ffe981536e34d46f35f41ff1e1d392a59bf
 . . . . . . . . . . . . . . . . [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 (23 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'assets.cdn.nzxt.com'
 . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (52 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crl.sca1b.amazontrust.com/sca1b.crl'
 . . . . . . . . . . . . . . . . [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 (25 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.840.1.114412.1.2 (digiCertDVCert)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (105 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.sca1b.amazontrust.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://crt.sca1b.amazontrust.com/sca1b.crt'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.3 (CT Precertificate Poison)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (2 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:5|false] NULL 
 . . . . [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)
		0030e1cdedc630b92330fb98c62042efacb2ae3d14422694939af2bdbfb6361837dc62b3f1b9dda20e0808553fa4a5e31f8748e5ba2413db8e9c05c060a8cfa7d79168ff1fc65ad2ea11bbc5cc2aa84b9676a008400d0541046c34cc9a848eb98a0c00f04f7dfc540dcbdc0a6abfb2f3e3a85c4f43cb32814a92b4724f3f2ba1c6c18b1c2dea447303960105b6e88bdd847df83d9f5d47dd81046a6ff6568a98a5ca0663500044a7df4d497e52f114dfbd2d79d36afe218c7abf079e6d1c55a672acf9c7111fcad6c813b9ad50338ab2fc05b77debd9604ebd01d7e415a5622ebb378bcb1f654ee65f6366321534378dba35226e83163244a902817d48762f22dc