www.bktco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:b6:93:44:f8:e8:d4:05:63:e3:fc:96:0b:a0:b2:06:eb:e0 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): 03:b6:93:44:f8:e8:d4:05:63:e3:fc:96:0b:a0:b2:06:eb:e0Serial Number (int): 323464003214942436039156184916683259309024
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: 0b:5a:78:3f:a7:49:50:31:13:2b:82:e5:4a:d1:d8:66:f8:ef:3c:8e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 7c:2d:2f:a4:bd:97:bb:e1:3c:52:b5:c8:5f:e8:b8:b1:4e:15:37:a0
Fingerprint (sha256): 09:71:53:bd:b2:46:74:cb:8e:a8:ef:b8:7a:a6:03:f2:e9:5d:b6:8f:ef:09:d8:e9:68:78:53:c0:63:b0:14:e0
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----- MIIGUDCCBTigAwIBAgISA7aTRPjo1AVj4/yWC6CyBuvgMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMTcyMTE2MzdaFw0y MDA1MTcyMTE2MzdaMBgxFjAUBgNVBAMTDXd3dy5ia3Rjby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDbvWcduCcALqTMxQUXTbkZ2jlBkBPjCYXE mzioPqUnDwnMLJ4+8ukBpdWDBBY2UZML+pJyWHdVBfmXaWeU1lwVw3lEYEilfYqJ DH1KQuc1pGHzFntQd0xIz7YkBz4iNOmb+WnBp5FjVayfapHPdF1N/sQcwTS/lSPS CcPyZTd7GJybhCNxvN175kekrcol07IJBiDheuWLxK/jJRfBIf+xtd8EEsLAScqj EgDJruK8hBpIaUAwGYXx+esJV3fIMymt7N+6Np6p340upwXigfDKre6VR2UqprR3 RNCUlQ8JKx2xj/Uig+azGL0vkgJlkLigzfubvdXApSwSyFbHTcQnoMqVMqrBZZg+ GKEsF3CIJXvk5LirNHoIRy4NXnyQ6jdAns4U8b2IQ6GvHCUhAhNvmakpoD4JV4Bm ck+GnkLtsW1fmLbfm7JNG2pJ1kDuSHwYEqiwJXfrvLr+WZyNd2DTozsnv7a3jpSw zs6+v36r/Uki3EBOrCJSjfShDFf7TJhwQJhey66QrCJEhtf96BK4Yk/FvSHpXkOY fPw99O6q/iK95wxvebqtDiSFGLHKp4asRWtuiMG9cnFEBVNe0vO2RdKD0h7S5Pkg KzsrDKo6QtcubepYJjK89ghDeuj90cTOOAOno7TSI9b/zKkt6uKVjsZKYOSDRKWA aQTJJbz/HwIDAQABo4ICYDCCAlwwDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQLWng/ p0lQMRMrguVK0dhm+O88jjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5ia3Rjby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggECBgorBgEEAdZ5AgQCBIHzBIHw AO4AdQDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAAAXBVOYKDAAAE AwBGMEQCIEEG5jA8E6TgL1zehbKCe8fRFu0XSe9OTcV3fdOh7Of2AiAoT12hjGK2 SSOQUh8TbxKvKT1ucRJBwK4Gn8Jbb3z/BwB1ALIeBcyLos2KIE6HZvkruYolIGdr 2vpw57JJUy3vi5BeAAABcFU5gnUAAAQDAEYwRAIgFw+pk0WW2VSR/ms/iG0G94ZT q9LX9J7ewAptORtt2cgCICybxsBjsVXUW+kyLzPhUEwXkGuvDv+IQuJY59Gu/gjj MA0GCSqGSIb3DQEBCwUAA4IBAQAmBTn712JWpjcZ1xDJZlJhfzET5QnbAy5Jjilh DdkRYGgXGbKSmCIYigmsak5Dy0Q97dRyvtdAr0p2e8HCPyxlmSj1FpBAwvlzeQ7D fviEwojpMHoPD51hxlLNnU+2/6pDmwLgcUq45x9YndwcQI3zjN2zcsU6VwUY+EzX Bh/2Mo4UlSs4u9NKDJ0tPeB7EB2Ubt/jymYtinmZKn2KDvmbbnbwpRXgf6HjlwTf ItCCZ3xEemh6YB70twPXi+hLpeHzmcMqWhh31KBgdfSA93V0XwrdDNhQ4UzxDlY/ 8632R9ODiaIDudKVdceHWJi+q4oCnw2oXeYThkIvmn5dPcMT -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA271nHbgnAC6kzMUFF025 Gdo5QZAT4wmFxJs4qD6lJw8JzCyePvLpAaXVgwQWNlGTC/qSclh3VQX5l2lnlNZc FcN5RGBIpX2KiQx9SkLnNaRh8xZ7UHdMSM+2JAc+IjTpm/lpwaeRY1Wsn2qRz3Rd Tf7EHME0v5Uj0gnD8mU3exicm4Qjcbzde+ZHpK3KJdOyCQYg4Xrli8Sv4yUXwSH/ sbXfBBLCwEnKoxIAya7ivIQaSGlAMBmF8fnrCVd3yDMprezfujaeqd+NLqcF4oHw yq3ulUdlKqa0d0TQlJUPCSsdsY/1IoPmsxi9L5ICZZC4oM37m73VwKUsEshWx03E J6DKlTKqwWWYPhihLBdwiCV75OS4qzR6CEcuDV58kOo3QJ7OFPG9iEOhrxwlIQIT b5mpKaA+CVeAZnJPhp5C7bFtX5i235uyTRtqSdZA7kh8GBKosCV367y6/lmcjXdg 06M7J7+2t46UsM7Ovr9+q/1JItxATqwiUo30oQxX+0yYcECYXsuukKwiRIbX/egS uGJPxb0h6V5DmHz8PfTuqv4ivecMb3m6rQ4khRixyqeGrEVrbojBvXJxRAVTXtLz tkXSg9Ie0uT5ICs7KwyqOkLXLm3qWCYyvPYIQ3ro/dHEzjgDp6O00iPW/8ypLeri lY7GSmDkg0SlgGkEySW8/x8CAwEAAQ== -----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 323464003214942436039156184916683259309024 . . . . . . . . [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 2020-02-17 21:16:37 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-17 21:16:37 +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 896460394639340454916722246966976182106142500835731693097505792759659423429244174997968274341280970174688870299311909966978028625799161550394368463819954832325750209257383462337881333038596513486069558026579570209395670013572773321375998747524558946799476891211745606515345073875296326224324579531778148067425541135437225941009170503379335791298476216156909083123518495362592849664400118789702979830286347976435611240048419994060725920432862832092268261339273210636640121366485707270769777772983297644208384724909851415834278751790187869684230212340191530300115749898839623396751165677962424655713995394925864845152997285957496987388173723763397912469257993070587013499745129604036850574181671252422681761171714395697698004524281786761156321994060274030573014271445851128900444414138265590996560574976964584573353296619435496382527178637357864202677288692723909738499698122402277708130214298379654389900559623842880721872399561595784043661350502010515069491655366782159842477819745379072443590889703122373322457169468263022266190060815079518714757274713268087644714565948602879817591804750365726509536063135776347007460976345730173571458152093703874720620158444928925588526634748111313432960082643400407489445209398551185507076603679 . . . . . . . . . . . . . . . . . . . . [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) 0b5a783fa7495031132b82e54ad1d866f8ef3c8e . . . . . . . . . . . . . . . . [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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000017055398283000004030046304402204106e6303c13a4e02f5cde85b2827bc7d116ed1749ef4e4dc5777dd3a1ece7f60220284f5da18c62b6492390521f136f12af293d6e711241c0ae069fc25b6f7cff07007500b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001705539827500000403004630440220170fa9934596d95491fe6b3f886d06f78653abd2d7f49edec00a6d391b6dd9c802202c9bc6c063b155d45be9322f33e1504c17906baf0eff8842e258e7d1aefe08e3 . . . . [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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