DV SSL/TLS Certificate for *.kawai-tp.com

Certificate is witin its validity period

Issued by Let's Encrypt (R11)

About the *.kawai-tp.com DV SSL/TLS Certificate

This certificate with serial number 05:ce:cc:8c:54:34:95:e2:c3:8b:0c:82:11:00:ac:e1:2a:43 for *.kawai-tp.com was issued on by Let's Encrypt.

With 5 subject alternative names, this certificate can be used to secure multiple FQDNs. 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 *.kawai-tp.com 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)

Let's Encrypt

Organization: Let's Encrypt
Country: US

This X.509 certificate will expire on

Certificate Details

Serial Number (hex): 05:ce:cc:8c:54:34:95:e2:c3:8b:0c:82:11:00:ac:e1:2a:43
Serial Number (int): 505931488385103532985122174928654182722115
Serial Number Length: 139 bits, 18 octets

Subject Key Identifier: 25:13:a8:8e:f3:4c:2e:8b:bd:05:42:78:7c:64:f6:59:1c:da:7d:07
Authority Key Identifier: c5:cf:46:a4:ea:f4:c3:c0:7a:6c:95:c4:2d:b0:5e:92:2f:26:e3:b9

Fingerprint (SHA-1): c1:78:4c:68:4e:d4:d0:35:c5:16:7e:8d:b9:00:39:e4:a4:2d:4b:a5
Fingerprint (SHA-256): 3c:8d:14:d4:76:26:da:95:f2:ab:b1:e9:70:48:f1:a1:21:0f:57:48:58:92:a5:10:e3:8d:ce:56:64:a0:b5:1d

Issuing Certificate URL: http://r11.i.lencr.org/

Revocation Information

CRL Distribution Point: http://r11.c.lencr.org/68.crl

Check the revocation status for certificate *.kawai-tp.com
5
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details of the X.509 certificate for *.kawai-tp.com

Public Key Algorithm
RSA
Key Size
2048
Signature Algorithm
SHA256 with RSA
Key Usage
Key Encipherment
Digital Signature
Extended Key Usages
Server Authentication
Client Authentication
Extensions
10
CA Certificate
This is not a CA certificate

Subject Alternative Names

X.509 Certificate

The complete raw X.509 certificate details for *.kawai-tp.com in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvr7buNICdiaiAK7jEDnN
fDZJTQ4On7QC97ODK0ZZA691+THL5Jg4fuemIixVAtDTXL5hgwb3m/BsvSPqJmaf
V+xf1P80ajPL1sLiTHaKSYV24V6Pa3u0e5oR+1B/24q8V6C/xo6CjBMUTMSvxdKn
zlOKQF7NpXyBSZ+9mxu62DenCtVw5MfCmjqkyP/0/icEdHoEIm4dlzNshlhjcd9Q
AwBsws3w4X3p2vo8C2pXgZN2noPZu/SbNdAcXq+H5Yh14NaEq9LrAE38P0B3q96n
gL+uJ9V49myWmQnkbaAKwYjF5Uq2M7dGXMr3IAIxMVZWcNl2Mh/1u7G8fguHkFmR
fQIDAQAB
-----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 505931488385103532985122174928654182722115
 . . . . . . . . [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 'Let's Encrypt'
 . . . . . . . . . . . . [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 'R11'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-06-20 03:30:03 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2025-09-18 03:30:02 +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 '*.kawai-tp.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
 . . . . . . . . . . . . . . . . [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 24079393673541495350067117773356848610186579523425646595000286515360054563941752881930015283988420199179691224423073382052140641848299220923949037981983794795415643131353241789636746535355250292372914209481666147556934264546613374353135233869205781310982975869159144476202928008011805834311195476514822563818784026224191841938780023442754921398210570871249325339482970098577132579243679907598489658253186315751781205436966096801810908938006261594332113455983290720926281121615176429151834912252591879342010940374505692844538661627137063270614395131896052044716057477515541861698697843542979004273696225750640047526269
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.15
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.19
 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.14
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							2513a88ef34c2e8bbd0542787c64f6591cda7d07
 . . . . . . . . . . . . . . . . [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 c5cf46a4eaf4c3c07a6c95c42db05e922f26e3b9
 . . . . . . . . . . . . . . . . [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 (39 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://r11.i.lencr.org/'
 . . . . . . . . . . . . . . . . [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 (83 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.itma.org.tw'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.kawai-tp.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'itma.org.tw'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kawai-tp.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.itma.kawai-tp.com'
 . . . . . . . . . . . . . . . . [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 2.5.29.31
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (39 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://r11.c.lencr.org/68.crl'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007500a442c506496061548f0fd4ea9cfb7a2d26454d87a97f2fdf4559f6274f3a8454000001978b9873f50000040300463044022069fdf88f67ee6bf431f396c09278ed8d5f24be11a0186d808664af384d9d2bfe022006d8887dd2f2e7fdbec4949a8eccb4254b5701483322711a2f674e97f08271fc007600dddcca3495d7e11605e79532fac79ff83d1c50dfdb003a1412760a2cacbbc82a000001978b9874330000040300473045022000a6d2ff2298f7a783c1b2b6415dc17f7d562af4a44612bb10d0b6c91295c4e7022100e21e22114493a39029181b9184b79fffa15aecdb8cf580d11c2b1be88c566e3c
 . . . . [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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