*.scout.production-ca-central-1.aws.netengine.io

Issued by Amazon RSA 2048 M02

About this certificate

This digital certificate with serial number 07:31:2a:fa:54:42:49:e8:45:a6:be:71:a0:fb:98:eb was issued on by Amazon.

With 4 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=*.scout.production-ca-central-1.aws.netengine.io

Amazon

Organization: Amazon
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 07:31:2a:fa:54:42:49:e8:45:a6:be:71:a0:fb:98:eb
Serial Number (int): 9559890210883478546871182025757006059
Serial Number lenght: 123 bits, 16 octets

SubjectKeyId: dd:be:34:ba:c3:9e:97:92:0f:11:a7:49:1e:1a:4b:95:98:4b:a1:d7
AuthorityKeyId: c0:31:52:cd:5a:50:c3:82:7c:74:71:ce:cb:e9:9c:f9:7a:eb:82:e2

Fingerprint (sha1): 8e:7f:c6:a0:eb:7f:49:e9:40:bc:b7:37:f1:78:a8:08:60:96:93:7a
Fingerprint (sha256): a3:ec:d9:00:45:a6:79:09:a4:0e:ba:ef:95:a1:bc:23:53:e7:36:67:75:58:7f:4b:54:46:4d:06:bd:56:7a:9d

Issuing Certificate URL: http://crt.r2m02.amazontrust.com/r2m02.cer

Revocation information

OCSP Server: http://ocsp.r2m02.amazontrust.com
CRL Distribution Point: http://crl.r2m02.amazontrust.com/r2m02.crl

Check the revocation status for certificate *.scout.production-ca-central-1.aws.netengine.io

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for *.scout.production-ca-central-1.aws.netengine.io

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

*.scout.production-ca-central-1.aws.netengine.io
*.scouterecruit.net
scout.production-ca-central-1.aws.netengine.io
scouterecruit.net

Other certificates including the domain name netengine.io

(limited to 100 certificates)

Certificate

The complete raw certificate details for *.scout.production-ca-central-1.aws.netengine.io in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0D6fg6NZ0dy0TrGFaLvx
2/IKXR5ytJu5JzRHX80FxqDNtScHWqKoySmxfDoWNf+iN5ama971Xvcm8UcSlHGS
L4hVNUACzE0PRZ/T36JR6EfSskaS3Kp6N7qdAZ7dPM3otuyuoxhqCtqM+nOkxK+7
IrLx6pAU2FP2jsitvCIq71eq93BjYlbvS4FJtdHun/IG2/gNt50e3QdRfB6hQMEV
QZbOA/1W72hOEvUOhd3RtgknWW9JCiwYEhWU8O+K6joP+cHg2NHtWHk2g5beGxFD
loNDp6+3ybHjiuzWC8ZXeiLf6Jt/9ISTg1Rc1BlY2nHGzUffixwVIN6kcpf+nVAc
SwIDAQAB
-----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 9559890210883478546871182025757006059
 . . . . . . . . [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 2.5.4.3 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Amazon RSA 2048 M02'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-04-21 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-20 23:59:59 +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:12|false] UTF8String '*.scout.production-ca-central-1.aws.netengine.io'
 . . . . . . . . [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 26288448035663460976490094272239699730586371716025466573750837813427498906661147446038375977411498313905431818902947024033101582462279485376201938503751337167193837074393094572642092436803370870447577233398804251036197995249737429004097534437464508192017896157944346768775722997113887749284680071806649357164246953483831040090154264746889712664237419797861669600001481170038412293039163014224214952453420441555932511005411471812995859727293504820029586310777870599353603482045549883912121352830437642769211037801929550201097468680849244886445563890753094188444359302132800133087848148995625447468480053299979326856267
 . . . . . . . . . . . . . . . . . . . . [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 c03152cd5a50c3827c7471cecbe99cf97aeb82e2
 . . . . . . . . . . . . . . . . [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)
							ddbe34bac39e97920f11a7491e1a4b95984ba1d7
 . . . . . . . . . . . . . . . . [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 (141 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.scout.production-ca-central-1.aws.netengine.io'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.scouterecruit.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'scout.production-ca-central-1.aws.netengine.io'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'scouterecruit.net'
 . . . . . . . . . . . . . . . . [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.r2m02.amazontrust.com/r2m02.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 (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 1.3.6.1.5.5.7.1.1 (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.r2m02.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.r2m02.amazontrust.com/r2m02.cer'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (366 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (362 bytes)
							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
 . . . . [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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