DV SSL/TLS Certificate for www.riatec.co.jp

Certificate is witin its validity period

Issued by Amazon (Amazon RSA 2048 M03)

About the www.riatec.co.jp DV SSL/TLS Certificate

This certificate with serial number 0b:cf:43:1b:b9:52:ae:57:40:63:01:fd:34:ca:53:54 for www.riatec.co.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 www.riatec.co.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): 0b:cf:43:1b:b9:52:ae:57:40:63:01:fd:34:ca:53:54
Serial Number (int): 15697674521309298503534755160309519188
Serial Number Length: 124 bits, 16 octets

Subject Key Identifier: d2:7a:70:ff:d4:9e:e2:74:8e:11:05:52:34:aa:c6:2c:59:a0:1c:47
Authority Key Identifier: 55:d9:18:5f:d2:1c:cc:01:e1:58:b4:be:ab:d9:55:42:01:d7:2e:02

Fingerprint (SHA-1): ad:eb:85:99:23:74:0e:55:a5:2f:b6:6a:93:68:de:ff:ff:88:e4:77
Fingerprint (SHA-256): 97:3e:11:90:98:23:97:6d:78:f2:1b:1f:b0:72:10:e1:60:50:a6:50:8f:43:bb:bb:3f:c0:6d:58:08:64:0f:6a

Issuing Certificate URL: http://crt.r2m03.amazontrust.com/r2m03.cer

Revocation Information

OCSP Server: http://ocsp.r2m03.amazontrust.com
CRL Distribution Point: http://crl.r2m03.amazontrust.com/r2m03.crl

Check the revocation status for certificate www.riatec.co.jp
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for www.riatec.co.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

www.riatec.co.jp

X.509 Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmKfq+UfjXUgNh6PU6/uA
D4/mth/hsNq3nphGXoejM81ZWe2kNUANbLTUvmCy+HlaFeyfBfxH7Q9+Di8ZoagN
5MJ0EBDIqbv1cZIdpn+AUw23C1olDw1VxwkQoo7BnVCPluuujV/e01EZGnlIgsQZ
AZ3njN1wdW0VOZX+Is7jO9xi6jT4L0f0SFqUECDuzZvSUUQkoNk1t+Cqe4KYcsCW
Y4c6Z1oFRcmQm1BW5Pr1m8m0uBx9GcJvJtxnzjdLFeYQUjEU+MvRGRJCwnjCi7+f
+NVGcEzMcGTkP57OsIgwS/b2loVOylaKSfR0vGuyxyXy0bChol3a6B4DIxENQcSs
EQIDAQAB
-----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 15697674521309298503534755160309519188
 . . . . . . . . [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 M03'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-10-21 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-11-19 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 'www.riatec.co.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 19271025740800099260666722967900367338016304287957407732401946692478055136405723401184016232933500671179175279903772322267624879603705485998598237610429814238785543073910284436317287616009990987289002065805953305402097072924335195829684650754607892805446779246925636543102075509521592433519041190128178859343047691857036290358195765227570854967877424071412090146297378092526674291797649135614088331737499655376408489807851430221635063091645850367512355773669868768082410299132255985538173094284418335783555082939584369885069622735652443324835362145028149093326419934137840474589471678069560004308677863579945149967377
 . . . . . . . . . . . . . . . . . . . . [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 55d9185fd21ccc01e158b4beabd9554201d72e02
 . . . . . . . . . . . . . . . . [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)
							d27a70ffd49ee2748e11055234aac62c59a01c47
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.riatec.co.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.r2m03.amazontrust.com/r2m03.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.r2m03.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.r2m03.amazontrust.com/r2m03.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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