kts.org.tw
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:fd:f7:b9:8c:40:1c:1e:d5:a4:d8:2e:64:8c:80:df:aa:40 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:fd:f7:b9:8c:40:1c:1e:d5:a4:d8:2e:64:8c:80:df:aa:40Serial Number (int): 347757579360772524128925260110985561090624
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 02:9e:c5:d9:99:0b:3f:c3:5f:ba:68:7b:96:19:8a:de:f1:6f:a9:82
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 85:4c:9b:63:dd:4a:7c:82:4f:8b:af:fd:f3:d3:7a:08:37:8e:44:04
Fingerprint (sha256): fd:b8:ee:b9:9a:6f:ff:1e:fa:d1:74:f4:00:64:4a:fc:35:e9:7a:b3:97:cb:40:3c:f0:83:05:0e:f9:e8:95:1e
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck 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
kts.synology.me
kts1.asuscomm.com
Other certificates including the domain name kts.org.tw
(limited to 100 certificates)
Certificate
The complete raw certificate details for kts.org.tw in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIFbjCCBFagAwIBAgISA/33uYxAHB7VpNguZIyA36pAMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTA5MDgxMjIwMDBaFw0x OTEyMDcxMjIwMDBaMBUxEzARBgNVBAMTCmt0cy5vcmcudHcwggEiMA0GCSqGSIb3 DQEBAQUAA4IBDwAwggEKAoIBAQCqHmoRJzTncWTzVqvW7mofMD6yQ8rei7ns1MnX vgMNcxew4iUw0Z/jaaubm4H/Ttnb3TEzkm7Z3oRLHMFGWSMdJN6bGI0qgB2C4+BE f78n5vtrOHJrcGxfyEmDzoTZyBNVi39lMUQko9+rgnAPDYYhS7shgpydNeSDUVmg QBsc0rdajbfLlXl8/MDqTUqSWu2f0Ip6sIVWQW+II//txxqqq2tv8Be24OuQyYM3 S13h+eIBLxdnu/rDXZCWAIB2k+dVfWt+sghLj0tncyT0ecaEYe5BV3Tqi1ik400O 3JiaXX4xwSPvaQoifUcns69uwpne/t8csZXEDDc+pIm2x1vtAgMBAAGjggKBMIIC fTAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMC MAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFAKexdmZCz/DX7poe5YZit7xb6mCMB8G A1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8GCCsGAQUFBwEBBGMwYTAu BggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxldHNlbmNyeXB0Lm9yZzAv BggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxldHNlbmNyeXB0Lm9yZy8w OQYDVR0RBDIwMIIKa3RzLm9yZy50d4IPa3RzLnN5bm9sb2d5Lm1lghFrdHMxLmFz dXNjb21tLmNvbTBMBgNVHSAERTBDMAgGBmeBDAECATA3BgsrBgEEAYLfEwEBATAo MCYGCCsGAQUFBwIBFhpodHRwOi8vY3BzLmxldHNlbmNyeXB0Lm9yZzCCAQIGCisG AQQB1nkCBAIEgfMEgfAA7gB1AHR+2oMxrTMQkSGcziVPQnDCv/1eQiAIxjc1eeYQ e8xWAAABbREIA3oAAAQDAEYwRAIgcvw5WC83TPnTn0xkQ8/WYFpfWkEQN1ppvITz esZjLSkCIBBlI7OucrZSwajp6X+YQ0rurQvOTd8PVM7VHKwJkhwXAHUAKTxRllTI OWW6qlD8WAfUt2+/WHopctykwwz05UVH9HgAAAFtEQgDnAAABAMARjBEAiBy0JBv lxIkathpelIGUmA64nJIAslREiKzKlKE7gjoTQIgBZjJ2y70EeCcsi25MdyX0wtt qusRtrBKqqLuHbarZjYwDQYJKoZIhvcNAQELBQADggEBAFU5nEzbLcbOQuqOKl+p eVqXpINq8Z72cMKhayYNK9Iv0SGYA5Ljdkkfh9XBZnHEmtMWndShExFf4ms+MBzh FjAERje2NrZXqpo4ocO2KsxNiwo3wY5hAMfTXjHjskQyq+68/HDRqF54KWyQSSJm O2B0UdTh0paYc44qkXcuhceYj7pneHkUPl+5GgPHgF2rXnEm29rCE94053J4fnCN gKZbuOVX1wUlxCtSMMxVo5Y8kLtym2cSa482aPcVG9fq74FrOOrSVOKsdD+1F/0U ffQmHOGXtgZlrW99UIa44RqRHEazliO0wyPBSEm4TF3YtN9a2v07o/WhUcFCCK1T RxA= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqh5qESc053Fk81ar1u5q HzA+skPK3ou57NTJ174DDXMXsOIlMNGf42mrm5uB/07Z290xM5Ju2d6ESxzBRlkj HSTemxiNKoAdguPgRH+/J+b7azhya3BsX8hJg86E2cgTVYt/ZTFEJKPfq4JwDw2G IUu7IYKcnTXkg1FZoEAbHNK3Wo23y5V5fPzA6k1Kklrtn9CKerCFVkFviCP/7cca qqtrb/AXtuDrkMmDN0td4fniAS8XZ7v6w12QlgCAdpPnVX1rfrIIS49LZ3Mk9HnG hGHuQVd06otYpONNDtyYml1+McEj72kKIn1HJ7OvbsKZ3v7fHLGVxAw3PqSJtsdb 7QIDAQAB -----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 347757579360772524128925260110985561090624 . . . . . . . . [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 2019-09-08 12:20:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-12-07 12:20:00 +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 21475509706488873034338876814289446826796089094924818119345138374772774608163362770425660073639290014517869534381120276929403351979709240516936552813783139361721845126621841416117420840547195183781794578318438420523530103838606579028051370068566999272250804359383177700046990054369392393694284924304116760084996985843572644923238426776361913968282883144880951554923319513511805372910210889811469286852900287653746209139809897512813398736072473772438535576389999075930971223973021087179788069652149577611587671448931203815489103196459028056796042189964564243933964763603259938197913012429144237714105373827516756089837 . . . . . . . . . . . . . . . . . . . . [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) 029ec5d9990b3fc35fba687b96198adef16fa982 . . . . . . . . . . . . . . . . [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 (69 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 1.3.6.1.4.1.11129.2.4.2 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500747eda8331ad331091219cce254f4270c2bffd5e422008c6373579e6107bcc560000016d1108037a0000040300463044022072fc39582f374cf9d39f4c6443cfd6605a5f5a4110375a69bc84f37ac6632d290220106523b3ae72b652c1a8e9e97f98434aeead0bce4ddf0f54ced51cac09921c17007500293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016d1108039c0000040300463044022072d0906f9712246ad8697a520652603ae2724802c9511222b32a5284ee08e84d02200598c9db2ef411e09cb22db931dc97d30b6daaeb11b6b04aaaa2ee1db6ab6636 . . . . [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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