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:b9:76:44
Serial 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.org

Check 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-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----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-----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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