kts.org.tw

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:4e:a4:cc:3e:28:b5:86:7e:e5:8a:12:6e:4b:c4:a6:64:10 was issued on by Let's Encrypt.

With 3 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:
  • Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)

Certificate Subject

CN=kts.org.tw

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:4e:a4:cc:3e:28:b5:86:7e:e5:8a:12:6e:4b:c4:a6:64:10
Serial Number (int): 288097936295716508707071424442886277981200
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 19:58:4c:30:05:72:10:b2:f4:aa:ad:20:cb:85:2e:0c:d1:b9:e9:b8
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 49:be:9f:b7:af:b5:64:58:09:49:b1:14:05:45:47:0c:a5:58:27:ba
Fingerprint (sha256): 80:c4:bd:78:a2:42:27:fc:f3:15:4d:e3:33:1a:39:93:6f:f1:ff:e9:a2:c9:47:c4:a3:ee:8f:c5:7b:0b:9d:9c

Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/

Revocation information

OCSP Server: http://ocsp.int-x3.letsencrypt.org

Check the revocation status for certificate kts.org.tw

3

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for kts.org.tw

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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

kts.org.tw
kts.synology.me
kts1.asuscomm.com

Other certificates including the domain name kts.org.tw

(limited to 100 certificates)
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw
kts.org.tw

Certificate

The complete raw certificate details for kts.org.tw in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvG0tMCvF6XvL1tHLc9gy
w7OgPfglNiEYM37/YVKk/W5Q0ZHx6oj55vtWQ0Dy1hoy7+otKNHcz7jnUt7+62qT
e4vUhPYZpp5bScTPLr2isCpEk3SLNm1AtXtrq7c7sPz2fCg5R61nU5+aOQtIOPsf
2ih0ed+ndRDa1sFo43Yh4IWw2nVSKzIG0PV67/4T//mvMOBrGQUEg0goG9d0sVxZ
T7RH1vjqmNNXyrP6t53WMz7gwpmaiFXU5yNbrKfuSMkbss2uc70Nrg2kuLlviYUo
B2p7u5/kD+Sv/MtPUP78PyWwV2tVuLHB3AlPXXiZZ7Fj66f+zSJD99D0EQ48+WqQ
hQIDAQAB
-----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 288097936295716508707071424442886277981200
 . . . . . . . . [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 'Let's Encrypt Authority X3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-05-29 15:03:40 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-08-27 15:03:40 +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 'kts.org.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 23786638280327642179924789758908206868687543774381304069521275562314411329523335670434657172485582344774902822892255238218504391276060603899185226410588348390813800635653850280885627747311853976622532428590603287673660703746679542015313218843805553648200990699331481107558636424707375565576758518334692291347599213970868398640154253696816768428647453254213717609695144188550607226681687118781300311449132515900886118132781073223965824688924411004346785360919154632689165605698567880682861810724065968526545598584587571334068448136137230430322832905986123656109730612841502767285571813603882705980946750990552583016581
 . . . . . . . . . . . . . . . . . . . . [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)
							19584c30057210b2f4aaad20cb852e0cd1b9e9b8
 . . . . . . . . . . . . . . . . [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 a84a6a63047dddbae6d139b7a64565eff3a8eca1
 . . . . . . . . . . . . . . . . [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 (99 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://ocsp.int-x3.letsencrypt.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://cert.int-x3.letsencrypt.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 (50 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kts.org.tw'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kts.synology.me'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'kts1.asuscomm.com'
 . . . . . . . . . . . . . . . . [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 (246 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 1.3.6.1.4.1.44947.1.1.1
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'http://cps.letsencrypt.org'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . . . . . . . . . . . . . [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)
							00ef007500db74afeecb29ecb1feca3e716d2ce5b9aabb36f7847183c75d9d4f37b61fbf6400000163aca404d0000004030046304402207a83ba4070f582a51d81979ac09c6198b4433c9a2fda6760f2f5ba901bc4681102201d89ea2d29aa7a1686f38f81c49897e53616f27458c3031c64e6797d6462ff70007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f47800000163aca404f40000040300473045022100cde73b888bc557e841decf7f4f30718f09289138c474cc67104921f2d2271939022076082cf65d804e3ecce99e7472f8d39df93852a344c4a75f3cd1a3dd0c56713f
 . . . . [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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