www.lklco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:51:81:06:f9:57:a0:58:fa:1f:01:9d:c5:28:ef:17:70:be 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): 03:51:81:06:f9:57:a0:58:fa:1f:01:9d:c5:28:ef:17:70:be
Serial Number (int): 289071236138376627453189464484833865986238
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: bc:65:cb:18:06:4d:16:0e:d6:42:d0:e7:ec:5a:2a:34:d3:a0:cb:9e
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 8b:6f:65:e3:17:e5:1f:fc:3b:d8:28:3c:41:3a:03:d4:e9:81:8b:4a
Fingerprint (sha256): 92:ad:60:7f:43:ef:8d:38:9b:1f:bc:54:ea:7c:60:b5:9d:65:45:9f:e8:fb:32:d4:c0:ad:d8:64:b0:50:ac:72

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 289071236138376627453189464484833865986238
 . . . . . . . . [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 2019-10-13 08:51:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 08:51:24 +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 920019902030228146096808321151700528460297835610656013049160678731927637611844573489676109222292560186754339210689065308593306830740765692178794182108503909900311548129153577761246180183938604188090800122678471858096443665523494978162109581485042040429045552731074295645902627825736129485103968580784470381779011261518717652425490279208785154833683513450995775716255179950982893317176799571932398391466671552352752225216105552793436603630822982645133901361262156699806920894095964813031457891238502952986149204522495708093244474522254191707239985180168810252091391813338686212465315482384616061930235750729831476873344971459327114449256497382902990118759035932624012578680389871920930168663871220576956060338349041777194523646580785299737728641406513430507615025839386944482616644963538911956256909272041967244079751122597859874105970476539707053420404323746906433897805408447218767163099053184400926285951842604083028032497186398131704884083895397377863909446301617969926699813562180393245872854746210051848497349321221951554526697749958351236735411963122085920297802857271967446152079376121480990884099869007026573434886622534131734598892865622458413634704748040586418868179602205651186714818531652442624741844882760862273059234503
 . . . . . . . . . . . . . . . . . . . . [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)
							bc65cb18064d160ed642d0e7ec5a2a34d3a0cb9e
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016dc4879d2d0000040300473045022100bfabdbaba9a8718ce54fa2c6332c55dda47a6c79945f64d5c87a63031e89487d022003deb7959fba447a33d0ce8f9f6be086d148db568dfecb5a728eb7cf3dc0a56c007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc4879d66000004030047304502202e34e163b995bae72b02e30243b0a22cbf417bae8d8b6734886b4f51f54f13c2022100b7dfe22774da9b46bb1147eddbc4c60635e776a412c317125238c222b6dcab35
 . . . . [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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