bktco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:38:fb:e8:52:81:10:fa:00:cc:c6:c6:a0:1d:30:c3:8f:10 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): 03:38:fb:e8:52:81:10:fa:00:cc:c6:c6:a0:1d:30:c3:8f:10
Serial Number (int): 280727512856049762317095929765439679467280
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: ef:b3:17:a4:2a:21:e0:51:b6:d5:f3:4c:b3:0f:28:19:34:dc:e7:cc
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): f1:a2:33:5c:0e:82:a8:a5:9c:6d:1c:4b:de:01:d3:90:7d:f7:d3:64
Fingerprint (sha256): 4f:5d:06:d0:e9:e1:81:c5:9c:a8:49:4a:c4:f7:c8:9d:c9:36:ba:fc:3e:c9:8f:33:76:5b:60:61:d4:be:60:ad

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 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-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEApDdXTWgSv2L8GlpTxgAD
+GHefvHsKA2OP84IJPgfMnmoPozpV9S88lRQ0keDxtru9pZB+60NY+DVjgjNFhaB
O9bSlj0chvJu1pd7p1Tf7khPuqHoj5WiWpSbP6EIhXaCsG5woVwtXNzRKPgCeC2c
ulBdGo2VE5aWCkycbbao5Ku2NsbVeU1Sgl4Ah6Pz8Lt36AG0y+yn8V92wZVHNpBQ
dzuzJV65N4TegawiVpUBds0mHBgwm3yFbdG8LKlJbEmF38ieEMIsWvJYuyJkG77J
ks3UpXA6sW7nlgLzrV0al48aWKZtxVIHCezv54lOHZTyerxTjeE+lbfslRo+I+AX
MosgE7xwpVyKfg/rQt34H6Qwq5HXspmAF/9uPEtwMmtFZIIMfUMx6OH04Nu8rIOV
3IV38l8bExNANMD4Y/ZUKP+kqB5JXpdxz6hCXCAPT+yKle82p+9ema0oL/eKDa94
e6gxCQdczgSeUV1XsQTTvoyHhz/0ZH1WYmqgb6upApdqhBm0GQ+ld0BaaiaWo1rl
tS51n9t31CwZsaBqmYdF6hAe/Escgmg39z1yHmQkMotXE1lDHwKJayWx0HT6x50z
LhvDsmzw3uTZaqofLzuMuHAgrHI3MuBLTO9IIE+RBNHogUy372NA1jhgD6mMoJ4C
TToZCF9QwMdX3mN/6mCPXz8CAwEAAQ==
-----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 280727512856049762317095929765439679467280
 . . . . . . . . [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 19:29:19 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-17 19:29:19 +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 669943547795417505348590065683983819676077227179165649979731646250971425529408239976992451115585303051180708934972967556611097142722926496581440541285687463415335376215403608272450179790185701620522276661301868945269481675312244560031536885321762984479324570802311988093597782967112732733004975077324592979137014635309491269151710787722819165949643374455576031078400059419566095840726424058899597529927979800864926529984496463588944947491312143075254150251179647424816996538648853509514805623356046468912704366094219730780966120578607860755846092644143831065372766845580316418535415940500705825060585700545668309395269464325467022394712917676053234827786653266559224814942131953158131216767638906694920171226510936314283002917260665362271211046860805744625852451382092210460831928193136488740052755231566931957134339631573688591958534607726687041841805707280232361093613801924982373589751546181523578648768983966304327487424855483200787287316267347454318242978911692550613908641906027678326295749099788999172503776364868666842154349348640871693004967819343183749742740942682809811304494117055406013719856798574593501924864810354587553494014681314384767572353001957060940654460751409563471500001024688468346252172638141814892005383999
 . . . . . . . . . . . . . . . . . . . . [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)
							efb317a42a21e051b6d5f34cb30f281934dce7cc
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f1ab35b9c0000040300473045022100ab8cd846ffafd336ecbcc77ff933f887070af53622590e3fbe559442d8cb1d14022068066fef3b0af21ccb254a5e3f3e31a0e7931366f0fd627c0f3d57c8df75b14e00770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f1ab35bcb0000040300483046022100fbd11f15ede63c79b8b1eff843b4a0870c3af31680f22b8fd9d85191e3dd15ff022100dd01d998b6a8d4069fb1108d9a52101a9b0af0f496d5db21775a348ab1b8af1c
 . . . . [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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