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:51
Serial 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.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-----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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 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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