www.bluetechnology.com.tw

Issued by R3

About this certificate

This digital certificate with serial number 03:cd:f6:cb:04:f6:5a:a0:aa:7e:95:d2:e4:46:da:68:af:17 was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate has already expired and will cause a warning or error message in the browser it's still listed on this site to allow you to look back on previously issued certificates. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • 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)

Certificate Subject

CN=www.bluetechnology.com.tw

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:cd:f6:cb:04:f6:5a:a0:aa:7e:95:d2:e4:46:da:68:af:17
Serial Number (int): 331422787237946311101874577182725079871255
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3c:3a:a2:36:dc:9b:dd:bf:e9:13:99:b3:73:6b:dc:c0:a7:4a:7f:bd
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 86:16:ec:eb:fb:f2:ee:b8:d9:be:32:67:8d:b2:b6:65:85:5b:c9:b9
Fingerprint (sha256): 37:01:08:08:4e:21:6a:cc:c0:34:36:e2:00:f5:f8:ce:1c:41:47:b1:3f:d1:c2:7b:e6:10:b7:b1:2c:3c:a5:bf

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate www.bluetechnology.com.tw

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.bluetechnology.com.tw

Public Key Algorithm

RSA

Key Size

4096

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

bluetechnology.com.tw
www.bluetechnology.com.tw

Other certificates including the domain name bluetechnology.com.tw

(limited to 100 certificates)
www.bluetechnology.com.tw
www.bluetechnology.com.tw
www.bluetechnology.com.tw
www.bluetechnology.com.tw
btciservices.bluetechnology.com.tw
icc.bluetechnology.com.tw
icc.bluetechnology.com.tw
www.bluetechnology.com.tw
btciservices.bluetechnology.com.tw
btciservices.bluetechnology.com.tw
btciservices.bluetechnology.com.tw
btciservices.bluetechnology.com.tw
btciservices.bluetechnology.com.tw
www.bluetechnology.com.tw
www.bluetechnology.com.tw
icc.bluetechnology.com.tw

Certificate

The complete raw certificate details for www.bluetechnology.com.tw in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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 331422787237946311101874577182725079871255
 . . . . . . . . [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 '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 (commonName)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-23 11:49:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-22 11:49:17 +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:19|false] PrintableString 'www.bluetechnology.com.tw'
 . . . . . . . . [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 (4208 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 667760371946712050235675662346670918449837772452643822078988921520975376482487933013514311932991164693890802436143789104472631351044550352167485193730275093847279964603988570926196689468168065113287924081597883478625097522294860094221942554503319753830691230630070073468845608549852932498188332987082316992372218857815208437148632583388388817863870113992751739998654282241120171426713239968360355225054989960660425234758077466411322251533183975111508469305704943237074682510262946092303765755304112664068769767700821441921335387641335544280562066448202516130224491579821403016134868713119300453211332817832741997350433226991187635559731796538891470546659169184240363287976194000796215732377779977724350956929872518763560381693098761833050926390347068874439410698674729716118082716010563601024201857603020463477034373066168223355418946368676385293296994923592628769855563890032519166381606992150572534798424094911138857006166282159041899115283587407798707263364794825392185698064123378548820105277969675532680338679620470096105098066307551993972649964876125166318076324837319631909985864756581634990078348608750561398758710155701288626172924343202491965465107975046090277798149816935625513300993340120143652279386406664679757524947273
 . . . . . . . . . . . . . . . . . . . . [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 (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 2.5.29.19 (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 2.5.29.14 (subjectKeyIdentifier)
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (22 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (20 bytes)
							3c3aa236dc9bddbfe91399b3736bdcc0a74a7fbd
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://r3.i.lencr.org/'
 . . . . . . . . . . . . . . . . [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 (52 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'bluetechnology.com.tw'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.bluetechnology.com.tw'
 . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (247 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes)
							00f20077003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018c96b90ba60000040300483046022100909d0d50474758050762b1357e468bcd19c8e679b7229f54b3e0e699da7b31de0221008c076a73fbcbc578fb3e02aa252ce7561586a65bbcb6f93ccd56cdb655ad66ea007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018c96b90ba200000403004830460221008f8556d7992366fd537639ee6246954d1af84a439ca57015b16c7af19a483251022100b8876222ff589b6c127bb1f978c1fe9ef3a9584b31ba7e7671dfaab5e45f8e8d
 . . . . [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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