DV SSL/TLS Certificate for *.city-hc.jp

Certificate is witin its validity period

Issued by Amazon (Amazon RSA 2048 M04)

About the *.city-hc.jp DV SSL/TLS Certificate

This certificate with serial number 05:f7:89:c1:e2:9e:95:6f:9d:25:fc:00:96:5d:9d:bb for *.city-hc.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 *.city-hc.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): 05:f7:89:c1:e2:9e:95:6f:9d:25:fc:00:96:5d:9d:bb
Serial Number (int): 7931431354269075511272674839974747579
Serial Number Length: 123 bits, 16 octets

Subject Key Identifier: 41:ea:ad:ea:9f:30:0c:f2:06:d1:99:17:2d:84:04:1e:56:73:a2:fb
Authority Key Identifier: 1f:52:92:61:56:82:54:7f:81:66:d8:1d:3d:0a:aa:32:5c:87:dd:08

Fingerprint (SHA-1): b5:d1:15:a9:d9:35:4d:c5:e0:fb:73:47:b3:96:db:db:0a:23:8e:04
Fingerprint (SHA-256): 8e:6c:4e:8f:fb:8c:a4:bd:90:f5:59:11:a5:a3:ea:17:7f:b5:7b:9f:b3:87:74:6b:99:b0:01:25:9f:3a:56:81

Issuing Certificate URL: http://crt.r2m04.amazontrust.com/r2m04.cer

Revocation Information

OCSP Server: http://ocsp.r2m04.amazontrust.com
CRL Distribution Point: http://crl.r2m04.amazontrust.com/r2m04.crl

Check the revocation status for certificate *.city-hc.jp
1
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for *.city-hc.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

*.city-hc.jp

X.509 Certificate

The complete raw X.509 certificate details for *.city-hc.jp in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs0kIFIl9xzgzmHE6K6F+
fAjbPZ01Y9u79DNrbOsNooHPAa6f/JKytc96Mv7cmTOL/MXj4oNFCMTkdZlpGYiQ
km0GzuFGgpQc0ySRFb0z3fbgqq5zzKUxK5i5Rfi93MFtX+8kqtr8oERdqAXivGKm
E8ByLrWDoTTSmZFSumVOludArTJQLLrXEKrKnGu7v7zosET0KC7o4lIXX/R5PKWv
cjI8FJMJeLProfmdcZlm+1/DAG41KeZpZU/EkMURLrEmf38pUr/Jamt3pxIlqDM+
+BVAfdzV3/5nC9clKjMp5y3Sd10Jum+k4mUCGqyR8VTj9xJ7jgZGErcdJda7f5/H
zQIDAQAB
-----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 7931431354269075511272674839974747579
 . . . . . . . . [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 M04'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-05-18 00:00:00 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2026-06-16 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:12|false] UTF8String '*.city-hc.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 22632669795053259163956729367775783332345469884889473419258983122684184774257826368492798252725007532143713392400273241125025430869245847439866190571808495300234116225226226618727546481468773575826070995315242804909087117724407757867937354236169566430808607210364605522488571548139724637905740031260531703924341191496277820876251892808530719396746202122861629559124647701206123858525184892519228728118832246510729566055190841642394810157822889956381687880326828439459685862238230448851333619097084823469371226085853669039490156458767668779451191344468744247410369176098424389513130530161936355088954858649708992120781
 . . . . . . . . . . . . . . . . . . . . [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 1f5292615682547f8166d81d3d0aaa325c87dd08
 . . . . . . . . . . . . . . . . [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)
							41eaadea9f300cf206d199172d84041e5673a2fb
 . . . . . . . . . . . . . . . . [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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.city-hc.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.r2m04.amazontrust.com/r2m04.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.r2m04.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.r2m04.amazontrust.com/r2m04.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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