www.bktco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:8f:ac:df:92:fd:c4:80:d6:30:90:95:0f:e0:0d:b9:76:44 was issued on by Let's Encrypt.
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=www.bktco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 04:8f:ac:df:92:fd:c4:80:d6:30:90:95:0f:e0:0d:b9:76:44Serial Number (int): 397339310275546987723623726901802967856708
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: a2:46:19:2a:c0:04:03:9d:06:56:7f:a3:13:39:0d:88:85:5e:b8:52
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 82:b5:29:3e:52:be:40:c9:9c:72:df:a5:95:37:54:3e:b0:0d:04:79
Fingerprint (sha256): 5c:ca:65:29:30:e5:c3:8b:78:4b:8a:b0:37:50:5a:64:fa:29:c2:02:f3:de:64:68:88:2e:7d:f3:71:0c:da:c8
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate www.bktco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.bktco.com
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
www.bktco.com
Other certificates including the domain name bktco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.bktco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUjCCBTqgAwIBAgISBI+s35L9xIDWMJCVD+ANuXZEMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMTgyMDU5NTVaFw0y MDAzMTcyMDU5NTVaMBgxFjAUBgNVBAMTDXd3dy5ia3Rjby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDZXf+OhUKe4Tb5TLScaRfs//EelnDbk5Hw Nd4O/ztn6ighhnkyjvbzRU4Ac7/BkM38SuJel63FBsqhx9j6uc32igzz1IhHwWtC axMzk6FMtsMnM+F/UqADqU3MxHzcPwqGFSm82/9116fH/HJ4hsie7bRoQH/89FGt 3Ld11cHMlpP3/9rV6MAVh33aY7cFI6wqN1Ec3cJ5/tJMhnLp9tZM8AMBMwVD2Eu8 raldxneoQuiILIGeTMGUnyC/v25MRUvEZ+ZURfIWKN2EpHdn7ZinWI4NhwfdVuiS 8l3U574X6BbvI0+XmQzuvtrxzcY0yJETcQXr/rYUS7oG/IzexzFLN4kC7uPDBpsS I0qi566EtBLNA7RCcnLNVWr7dkYNG/izDiIcaBQAtoU1Rqhlb62RcJRdWua+qxc5 MkXxBuQWha+KPeBNosoV7F6NLjiQ0DVnp9CEt/LPXzrdr+Rpv8VPS+c3S01027Z9 z1xLlVxhi6k67wdaifMD8xlNuUgQq+BSx+BKy3WZD8rqVNFKywdXlJh1TDzRiQBD KdVXGisWff4ztcfLhmkVde5Rb3eqHGijHiN3yY9ybqKqqMT0uVS5h9v6UWX1hIMe eRo4wS7yBNOvZl2ny93FV8Bu2XoJHPNEpvN0Uz5jQPk8xTm/AAsQcnUyooIb9aiP bFw6BOSZbQIDAQABo4ICYjCCAl4wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBSiRhkq wAQDnQZWf6MTOQ2IhV64UjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5ia3Rjby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHy APAAdwBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW8bBk+PAAAE AwBIMEYCIQCvymajFYmyakjB0Q1Ze1rqO8fSuqNFD+KKbzHgmSYHxwIhAL+DifKn WyZGEXR9jJHR/mIZXfLYk6HG2sL2JxNWq1AkAHUAsh4FzIuizYogTodm+Su5iiUg Z2va+nDnsklTLe+LkF4AAAFvGwZPfgAABAMARjBEAiAlPJCtMu79Bj3MEld3MIi1 pWxhQuXh5JmeRUEZ7pydgAIgEM0Scl++T5XcFbheoIX6d0RkSM1EulHdCNGCMxMu EzgwDQYJKoZIhvcNAQELBQADggEBAIO3OxtDn+eyw4mV27ofSobpVKjM1yW6zU4L Ugv1ikTcqkeTN57HVpmcaB7WHMsg7p+TlI5f/lgva4nOIQ1twVop+GbhuOKQMDbJ A/frPsV/P1dkINST74UE+wPgxtMtHEHoVpvnUyrTM7v4TRiUAX7ZoyRRXnmkxqDA cX5aRt00awQSEUiCqQIOvlxghi5TLK7wtCkdm7Lz0Dc+PYpovl0S5mJCIajgVTCu wnAV20CAdVaMAh+FYlX05nNfexbEyEt5E37lwtO5x1wpg3t8ow8ilgj/Ce1YW4gJ 7Eg3aF/0vt1dw+P2xZSGKOVLfgx5mT/uzs+9Xx0rjQQhA+obKVo= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA2V3/joVCnuE2+Uy0nGkX 7P/xHpZw25OR8DXeDv87Z+ooIYZ5Mo7280VOAHO/wZDN/EriXpetxQbKocfY+rnN 9ooM89SIR8FrQmsTM5OhTLbDJzPhf1KgA6lNzMR83D8KhhUpvNv/ddenx/xyeIbI nu20aEB//PRRrdy3ddXBzJaT9//a1ejAFYd92mO3BSOsKjdRHN3Cef7STIZy6fbW TPADATMFQ9hLvK2pXcZ3qELoiCyBnkzBlJ8gv79uTEVLxGfmVEXyFijdhKR3Z+2Y p1iODYcH3VbokvJd1Oe+F+gW7yNPl5kM7r7a8c3GNMiRE3EF6/62FEu6BvyM3scx SzeJAu7jwwabEiNKoueuhLQSzQO0QnJyzVVq+3ZGDRv4sw4iHGgUALaFNUaoZW+t kXCUXVrmvqsXOTJF8QbkFoWvij3gTaLKFexejS44kNA1Z6fQhLfyz1863a/kab/F T0vnN0tNdNu2fc9cS5VcYYupOu8HWonzA/MZTblIEKvgUsfgSst1mQ/K6lTRSssH V5SYdUw80YkAQynVVxorFn3+M7XHy4ZpFXXuUW93qhxoox4jd8mPcm6iqqjE9LlU uYfb+lFl9YSDHnkaOMEu8gTTr2Zdp8vdxVfAbtl6CRzzRKbzdFM+Y0D5PMU5vwAL EHJ1MqKCG/Woj2xcOgTkmW0CAwEAAQ== -----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 397339310275546987723623726901802967856708 . . . . . . . . [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 2019-12-18 20:59:55 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-17 20:59:55 +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.bktco.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 (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 886780729472279238311198368674858839480067240041284539579175225960982053968873029041748512433605993331160101656268417269177951659072941364646228456547601636529750267647966188435385430813836045533871154989060974277792589067212202164474961927526260388754675947212936755174241262549810408074669653197173340717024532118778437603557510302027591809829900733311807671793755786610021193199682721324211149273630553561498755619906406691639586011100333046334397249079599374749845504457492660424894940911212373393660373961504839803452096238420996366470102012837803487520084627720625803302607506540247134625960160163517751873980474244811068313377991646935976675116451187402049477621461790448131520619701753404260500921829032904534040028274608010221612022897082458306792333914656737384911402389451087066188850640089363274354315125360722540319255002640800473980838061078448910968496985892934769709845819683901166127822513759786068968900210011810011036409390806212387706174376642566255539643360971595095392569124680184429906268681952786854545429382112266582486544267554626934513494839479363195242595787369297396128524426129912690066554425368653000351632609576144205446202446127290945868338124741128273200182925823374303679098880379836923800684108141 . . . . . . . . . . . . . . . . . . . . [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) a246192ac004039d06567fa313390d88855eb852 . . . . . . . . . . . . . . . . [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 (17 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.bktco.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 (245 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes) 00f00077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f1b064f8f0000040300483046022100afca66a31589b26a48c1d10d597b5aea3bc7d2baa3450fe28a6f31e0992607c7022100bf8389f2a75b264611747d8c91d1fe62195df2d893a1c6dac2f6271356ab5024007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f1b064f7e00000403004630440220253c90ad32eefd063dcc1257773088b5a56c6142e5e1e4999e454119ee9c9d80022010cd12725fbe4f95dc15b85ea085fa77446448cd44ba51dd08d18233132e1338 . . . . [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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