DV SSL/TLS Certificate for rfs.jp

Certificate is witin its validity period

Issued by Amazon (Amazon RSA 2048 M02)

About the rfs.jp DV SSL/TLS Certificate

This certificate with serial number 04:23:1d:39:12:84:d1:5e:1b:ab:16:19:c4:b2:1e:72 for rfs.jp was issued on by Amazon.

This DV SSL/TLS Certificate is currently within its validity period but we haven't checked the revocation status of this certificate, you can do this simply on revocationcheck.com. We have found some issues with the compliance of this certificate, they are be shown below. We hope this DV SSL/TLS Certificate review for rfs.jp provides you with the detailed information you were looking for.


We have identified some issues with this certificate:
  • 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)

Amazon

Organization: Amazon
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 04:23:1d:39:12:84:d1:5e:1b:ab:16:19:c4:b2:1e:72
Serial Number (int): 5499235084803448765679249447562911346
Serial Number Length: 123 bits, 16 octets

Subject Key Identifier: 05:a1:ba:7e:03:1d:7f:82:c1:69:96:2e:96:bf:e6:0f:f2:3c:3c:11
Authority Key Identifier: c0:31:52:cd:5a:50:c3:82:7c:74:71:ce:cb:e9:9c:f9:7a:eb:82:e2

Fingerprint (SHA-1): dc:91:d6:0b:21:3e:c1:1b:d7:17:bf:bd:91:43:ed:0d:4f:1f:42:16
Fingerprint (SHA-256): c4:c1:ee:42:eb:0a:0e:3a:83:0f:e1:80:a4:84:cd:af:7a:15:cb:ca:bb:f8:e1:fb:db:a2:4f:0a:9d:c9:fb:ed

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 rfs.jp
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for rfs.jp

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
CA Certificate
This is not a CA certificate

Subject Alternative Names

rfs.jp

X.509 Certificate

The complete raw X.509 certificate details for rfs.jp in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuarucRrixjZW17KffUea
GKDXwvIpRuKfyKkna0C+dSMjcreIHUhuQDN3Un0wblhFaCE1lmoDjIS3qhkNarl7
/2GJFr82qVL9JOfIpmQGD66zS+AtEJTExt2Z5rEJc+bOsq/F4diJFGGcPqEtJ6CO
3qy+hR/UdRl4c0AsUou6JiRRQFzKDbRRlKj4oWBB4iVbkCdFUrBLINifon55mzsn
vV11uzU6LcWKtaLpbOISBAqhC0NcI9qrBC+m0CK0bnoCajLtrUq+68pYLjFtnYoG
ptplhSz6hsfaA4Z44nnfaY+rYX6y2cvPEdvpyrv7tABy80r4NRHwuzRjzkOSIz6I
1wIDAQAB
-----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 5499235084803448765679249447562911346
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.11
 . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Amazon RSA 2048 M02'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-10-03 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-11-01 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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'rfs.jp'
 . . . . . . . . [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
 . . . . . . . . . . . . . . . . [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 23438375840151360681070895755463535363152414312717202095863394546172219421429645878033919407496179677324662684183806097092210605984025195852870675967032479478549899147132030532972402122586279236567775468189940199613933241575915366966776975339501796668119649248158347682520713052408078181339539973345296669579893138464469306154234903677307991712322963702212376822429623766349781664126028743612594192852614713212200767617830153683381237238973679768860724504884779029433596126153818323343343214264613290210366069365976697809202210103625583633838703579888604413086556224589685255516590925154228151171046091205353943238871
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							05a1ba7e031d7f82c169962e96bfe60ff23c3c11
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.17
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (10 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rfs.jp'
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.32
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.15
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.3.2
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . . . . . . . . . . . . . [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
 . . . . . . . . [c:0|t:5|false] NULL []
 . . . . [c:0|t:3|false] BIT STRING (2048 bits)
		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