bktco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:6f:39:93:48:ff:31:94:b6:f0:47:23:2b:17:84:0f:ad:51 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=bktco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:6f:39:93:48:ff:31:94:b6:f0:47:23:2b:17:84:0f:ad:51Serial Number (int): 299184731267454871663186460850108402478417
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: a3:7d:2d:a8:20:f8:7e:61:4b:36:ac:b3:58:53:06:14:88:48:6b:dd
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 89:c4:a3:d7:5e:57:12:9a:32:e9:ca:30:be:c6:83:50:b5:ab:40:f0
Fingerprint (sha256): c2:66:d9:fa:f8:65:e6:ae:09:3e:08:aa:ac:19:11:8b:f2:65:9d:04:e2:f6:ce:c6:30:f8:5e:6c:f3:a1:6a:fc
Issuing Certificate URL: http://cert.int-x3.letsencrypt.org/
Revocation information
OCSP Server: http://ocsp.int-x3.letsencrypt.orgCheck the revocation status for certificate bktco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for 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
bktco.com
Other certificates including the domain name bktco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for bktco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGSjCCBTKgAwIBAgISA285k0j/MZS28EcjKxeED61RMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMTcxODU5MDhaFw0y MDA1MTcxODU5MDhaMBQxEjAQBgNVBAMTCWJrdGNvLmNvbTCCAiIwDQYJKoZIhvcN AQEBBQADggIPADCCAgoCggIBAMTEgzXC8pM0oFuCELUED8KnaYingvbY034UDjUc zhqWXSQuq7fGsSHhu1NF3HR2sUXsuZqIFW/uOCNNukV1KeIe9UeA54w95PI/yepG E85ApKns0i3vsrn5tEhNLFuddXzjk9TAQ4YWWiJbTLHgEzjHui+JJQoNQ6LrvIup rb1ya2lo6BAcnyNfzb5gUKXY4976fbxlALa8z/q3Z4TCJGaRIJNsWDYrwoGjFjOD 559q91GkccII/ViSTPt1EokRhoswzrQG/9UyaElBCpazSM/xn+IwFYyOs0aGA3Gu B+PGUE3nV+ORP5a6iOrVcM7oMswExNi4fMbi2j3TaSi5ko/PWkGhf2+bGnRkIjSZ 9zb1wPRmt6nw44O4gqgochx52FLFujObTJR2v5PyOZTNJG0AexkQZr2Vb7O5owol ZrTHQUVHq/UUoBEkaSsOeaKL/t3EN0S/efDiDwfJk7dUxudHsotiRp3lWWvEk/Pj fv+UHUyp/vn8TyZIz6bRo1sc+BrjkBxnAIDfBMM7FM93GOFzzIgTmaU7nWLYrtLC Qqh29JxzrWX8eMXWyoLcS33Se+yNgdaaZ4NtjeBQcQp0sd/EV1EY8B5GjZNAqEMp wuxHP8prm0KEPMzwkFI/WSxIOov+8+dkXj96fNqoQ1O9Ea5NbE4OmA5x1y/HcMmp 1wWjAgMBAAGjggJeMIICWjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFKN9Lagg+H5h Szass1hTBhSISGvdMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJYmt0Y28uY29tMEwGA1UdIARFMEMw CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j cHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHYA8JWk WfIA0YJAEC0vk4iOrUv+HUfjmeHQNKawqKqOsnMAAAFwVLujnAAABAMARzBFAiEA nqjHwlzWuLE9jwjtTazRVwkh8w0HB2xXoh6NkZ7HlJcCIDalRgD7xV+RCLwC85cW Qm9sDPdO1hGuJ41ksWU77nZOAHYAsh4FzIuizYogTodm+Su5iiUgZ2va+nDnsklT Le+LkF4AAAFwVLujjAAABAMARzBFAiAdxsY530kSf+UmoEeIONdhrYVBGTbIYUS1 tMZ20jE+QQIhAKgVA18qgaF+/dObo8qX9ZtM841xHVLyS3oluGxDY1SJMA0GCSqG SIb3DQEBCwUAA4IBAQA581z/OqiLNlEmc46b1dEn2eGKWM0krC497DvqcGja5r09 b+2XdqCLQpfWLbn/v7RKaR9FfIxfesr+RLdELOKXA9K9usnlBW1jyzoTAP8a/SMS 6ri1RD0h6j2iHVzcIVsS//UoeEwCXSaBA4eYmNNNA/o94ppDPi3Q+hpIrh0X3Xb4 nHColQdSIowT6FlTMVj9bc7xFSE8B9TfY4vtqlLpCcu3n8wAmtqsS6bx0oPgBSNx 7arfL8MozvejpATc9NJP9loLIOYLfn0M99e4p1E79rc2+9fHu96Fq8YPSZ2HTKvV xwIa1tw9PHL14zZjWMzH/KDbSL58mP6ikPYIZKCV -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAxMSDNcLykzSgW4IQtQQP wqdpiKeC9tjTfhQONRzOGpZdJC6rt8axIeG7U0XcdHaxRey5mogVb+44I026RXUp 4h71R4DnjD3k8j/J6kYTzkCkqezSLe+yufm0SE0sW511fOOT1MBDhhZaIltMseAT OMe6L4klCg1Douu8i6mtvXJraWjoEByfI1/NvmBQpdjj3vp9vGUAtrzP+rdnhMIk ZpEgk2xYNivCgaMWM4Pnn2r3UaRxwgj9WJJM+3USiRGGizDOtAb/1TJoSUEKlrNI z/Gf4jAVjI6zRoYDca4H48ZQTedX45E/lrqI6tVwzugyzATE2Lh8xuLaPdNpKLmS j89aQaF/b5sadGQiNJn3NvXA9Ga3qfDjg7iCqChyHHnYUsW6M5tMlHa/k/I5lM0k bQB7GRBmvZVvs7mjCiVmtMdBRUer9RSgESRpKw55oov+3cQ3RL958OIPB8mTt1TG 50eyi2JGneVZa8ST8+N+/5QdTKn++fxPJkjPptGjWxz4GuOQHGcAgN8EwzsUz3cY 4XPMiBOZpTudYtiu0sJCqHb0nHOtZfx4xdbKgtxLfdJ77I2B1ppng22N4FBxCnSx 38RXURjwHkaNk0CoQynC7Ec/ymubQoQ8zPCQUj9ZLEg6i/7z52ReP3p82qhDU70R rk1sTg6YDnHXL8dwyanXBaMCAwEAAQ== -----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 299184731267454871663186460850108402478417 . . . . . . . . [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 18:59:08 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-17 18:59:08 +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 '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 802741882700586069971870732271287891395564696002945272810306692197058861251453215174464809244068297459691573563888162185947686744281499891555764880527181838161909655307715483872559605790764723648143586327617616263396909461264488076313326060248702009758714785791286798411832411473835188992074828345092362062457455367664842542464691610613158091165716737291165286294703103025136083813947357040522139470047746453276021636985175837779552597740593737473200491878681061533500061870101705199773206197021881713986045084177602611886780434938474565161999780123677859023456220224069448536619569419506330640230871936079848164370306065691797096425404175843200890744540529372902435408890379238677112110950432054544973436123819974241304430539232368170744701783501502782921026356390533686219277643782399255584583464426548658032171539662636823539810303358243533101783056503501392759624383320047297788011711639573927900914510114876056085529510417010434837658602542136009876476462891042689655753191494852931686649118015188031576464401645413858844489763622934128794091376346108936214485307179232612133140544640047981324996987877367141942775938275888095874713674594644145827952677689249954396768257155473043942189292774371492688531505695635316598755493283 . . . . . . . . . . . . . . . . . . . . [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) a37d2da820f87e614b36acb35853061488486bdd . . . . . . . . . . . . . . . . [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 (13 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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) 00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000017054bba39c00000403004730450221009ea8c7c25cd6b8b13d8f08ed4dacd1570921f30d07076c57a21e8d919ec79497022036a54600fbc55f9108bc02f39716426f6c0cf74ed611ae278d64b1653bee764e007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000017054bba38c000004030047304502201dc6c639df49127fe526a0478838d761ad85411936c86144b5b4c676d2313e41022100a815035f2a81a17efdd39ba3ca97f59b4cf38d711d52f24b7a25b86c43635489 . . . . [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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