www.lklco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:aa:04:ea:68:2f:9f:1d:44:39:de:a4:c1:7a:93:53:93:cb 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.lklco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:aa:04:ea:68:2f:9f:1d:44:39:de:a4:c1:7a:93:53:93:cb
Serial Number (int): 319191394194431881457345012190806868726731
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 03:a7:0b:97:e3:28:4b:21:83:49:2c:67:42:3f:35:10:91:cd:12:cf
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 6b:63:80:c1:ff:4e:8d:24:34:4c:81:f9:89:92:a8:d8:f8:e0:cb:a4
Fingerprint (sha256): fb:49:f5:d9:2d:48:60:09:6e:21:ab:55:b6:e1:e2:dc:da:7d:ef:bb:11:8b:0f:a7:8b:35:b2:d5:38:e0:2f:23

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.lklco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.lklco.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.lklco.com

Other certificates including the domain name lklco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.lklco.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 319191394194431881457345012190806868726731
 . . . . . . . . [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 2020-03-01 21:41:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-30 21:41:57 +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.lklco.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 828266743259413468465479646800875352380642061685230357466025419645247932984587308772732716850547489271853008706826454160269098983170093108554435249936526975122247476782553610735952689558189941929410128836686565185387257099808218944964394399419285550984361874680779685705027096508084486966275086904570748928327295311664278924229503274513873885374352860934242328909891205488219953579132340722039586139664608306412038346243016152048062885770112711607237666023937978506438974139290596479619309236364472336578735857903181988034101861790316483285200593939948559392067378062562860114193425354329640148081150933073006637654681205503925802480665418615636415795019320042324435200042377357532731175777847120433378106657431763057376068943229639910324465447427401516124513142427859639911798231700424079969071802148716200979587379080409058344478486642357154170360477189131303785780622438175359862471748588625231385920515813515990029650816269526028432885726733839531284645446827257703087256131268750645145712149289908842632421778462523206800469204799589880844235615608035015248601741017863243916861914702069055230760865618002847729146233657497214070045682384128870543722758269848491626122047217208327903417668579947723995574703601220263194327707477
 . . . . . . . . . . . . . . . . . . . . [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)
							03a70b97e3284b2183492c67423f351091cd12cf
 . . . . . . . . . . . . . . . . [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.lklco.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)
							00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a112128418759681714558000001709843626f0000040300473045022033548b7d15191a1277ad9ae041614a2d9c22ee5e053222e238c5ca971cf2136c0221009b8cb76c300f377c2cdb18d8101778573715e650066c18961afe8f5bf47982dc00770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c00000170984362880000040300483046022100e4e9a190cab5d7060bb5529e8fe2bd7555c3c0f055a89060f71f483b149b56a1022100bab750a3db50e8b3df7b4b6e35234e78e641c31649c8c7bbe41c38ab8c1af661
 . . . . [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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