www.lkcco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:87:5f:0c:88:3a:b3:1c:27:00:e8:fa:fa:24:0a:4c:1b:f1 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.lkcco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:87:5f:0c:88:3a:b3:1c:27:00:e8:fa:fa:24:0a:4c:1b:f1
Serial Number (int): 307401319059827673306609234599249468726257
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 5c:01:64:be:d1:a0:54:b5:1b:ac:2c:50:f8:cf:e2:fb:0c:81:d5:98
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 09:c7:ca:65:4b:04:87:db:5f:59:20:4e:c9:e1:e5:13:cc:17:00:58
Fingerprint (sha256): 10:11:d2:f7:59:6e:84:bf:ce:d4:6a:76:a1:99:c1:07:4e:ba:c9:1c:ec:90:c9:3c:5a:e7:21:4e:bb:21:16:63

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.lkcco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.lkcco.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.lkcco.com

Other certificates including the domain name lkcco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.lkcco.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 307401319059827673306609234599249468726257
 . . . . . . . . [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 08:57:51 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 08:57:51 +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.lkcco.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 822764854078673366971082146191885113300481935209815786540932316067753051766146838196018594643213086476848718928076887560051297255958826838390972686190757750469767088635459639982428792340422521390506880867748452801623772258742735443952425920241782271119767828702047138160736881822218644960527664020490255218598381601855134755642237120159610318382995427959030118599142634173229185862243707951313015900645249753609530884607418464234572497850194327634048013998997956671774295797579772440900967608434560006363803153562986629374564881158559034392686249666778279285434179217481193175862034672446038778255923915494255294301502324345365382025815018101432595170226925688721017849796000311456369153221148436239381850104247703456886249679186185975098850408125115103665507250811662035458908287401667627330344509662055113470533998422172955095794118140851340648724303019805976095515055038537578925502962274563687613477029790761951147753691335837652529298887929108007686658464853919114464142430920279105851627471618509092854428660107150417442134470078606161942994456755083894938611030072635985947281085207011085441787614720134887367793622749127947546855610013138220462003572004289821615925750444331459349406278555521585927326429203030707131119826951
 . . . . . . . . . . . . . . . . . . . . [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)
							5c0164bed1a054b51bac2c50f8cfe2fb0c81d598
 . . . . . . . . . . . . . . . . [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.lkcco.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)
							00f1007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016dc48d827f0000040300483046022100bc5440078699cae51b9d972b966bc9cc2dc3ffc9bbe103333fa60240ebb6ee3c022100ff77fb665e15e4733b1ba622ef44d35fdbf7e3163df58af2818460e227d7c6bb007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc48d82b90000040300473045022021b26c657e978a757613f0149fb7c42488d1d0024994a3488cd14e64dcc0f3ff022100fa8ca01b01dbca91f128f76d5a30c7416853a6f8cd878cb38c44bf46e28c1505
 . . . . [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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