www.lklco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:a4:cb:96:16:e9:97:dd:35:95:56:cb:7f:5b:9b:9c:d0:f2 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): 04:a4:cb:96:16:e9:97:dd:35:95:56:cb:7f:5b:9b:9c:d0:f2
Serial Number (int): 404526064494468185549122526652800131977458
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 18:92:89:33:9d:fd:88:57:3d:44:e0:f9:cc:23:f8:a6:28:f9:7c:bb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b5:5d:28:40:79:16:92:f9:80:e2:fc:1c:09:cd:f1:5d:a2:46:28:48
Fingerprint (sha256): 28:b8:14:d1:d9:9e:b9:b4:0e:9b:63:f1:e4:6a:d8:fa:7b:d0:73:91:ba:46:29:37:9f:1f:e1:03:e5:fa:29:67

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-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAyFvZIrMABMPTu6BoOZ0/
gQcwxhgjSxYFZW4rj5ZCQ4R4bJQ3NTKTBNIlt6OBt4t9fi05DJcIwiwlOyS5xZka
k5+M62BOQrcnnJSPaBWEZFHnFnv63T8sSnwGWdoITZhk8P3NX4mx8vnGIvaayOWn
/zK6HkmLShLsswFGjYnLzlrX1dL3RS1fN81qEAMgKdPKBLi0dRSHgUpLBowMt3VA
qjvn7yDQTVg/v+NTs31XOuYzGEhaq0X1v+GwdabUExiq+Z0U0vseZBpt73Mj7YNU
g517Zg44zTU7w/f15FBUKJZTCeuK16VoBvECtxIhfJ9KsgSM+sK1FN+XihJHBMzo
9T6WHEWT514UGcyWNC8GzyO+Q6sGy9IXVrc+DVnWJ2HLeICSWvzBfXPsHbr7T2Vj
ebzdzwEt0QQRcbWlXhTATmUfZ1tL5ZUhMQGbPbGxv9VfwgWvLrwRjGmeeQwgiE5t
J8PPS9H38RztJbBlddIYhBtGMZIwvf+XOZTAqviIM5sPaI22Otv6w3oVeHplAsc8
rh1lsQc80+pLGRabz7j2DuY444nDaYrZqhGtdzEKTj0QkHKHH5Xp44pBWnfCs7vy
7h9ppRyOXg+of2f5VOPEjRkE/hb300DP0VK4KvvWqqASFMUvcxf0LhA7dRx54IdD
4uZx925ZRqbKKXcfYRoZj/ECAwEAAQ==
-----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 404526064494468185549122526652800131977458
 . . . . . . . . [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 2019-12-31 15:02:26 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-30 15:02:26 +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 817392516361928170182866376584052280331318043419427021645877874835538741428447180183422426033189895555601816452952234234232247258324395787965864215834150854069597468584593259527729857153673775420044060325339282817185819364345566089387470580163901293162862373008806708816355699930922728094946347627888509102210081457851284241169488759084232150422240630702758064991497211873940489731213957875484128210494403025835264753854666679546477837704025373802615323088700452635934040247595191357955845124310026501344327334712278063057887204041060614903714077348570174064395778828569304146576264106985220568994375850725120994673451237684932792959484136039166382108078414850602369715610798200740602304878263869438370665166693946605045195531168716347968842871817440640046832175980140807839792550712522175545387136475576567340850533424399790516876574652520231027398130617964068678815823864527936249315698262102992009215395804131602789616363865564613662393678116831035251982851915855157536555557184509315600255960143029370888229028632273855271742572022806972883902349748798952474703215592640310572987668952873131245058916011216893627811871677889813418063246843707433281247309376659269411710261615352531236177261638972699148544496944558189512658358257
 . . . . . . . . . . . . . . . . . . . . [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)
							189289339dfd88573d44e0f9cc23f8a628f97cbb
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f5cb1afac0000040300473045022100d285c162fe2a8aebed9a37ff6a9d5a4e80556402719a8ce135edbbd49829eb19022015a79294ee639c1d0c45a2180fdbff21fbe5af4330567bdc5e715ef32b16fc8d00750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f5cb1afd7000004030046304402204b02a014e001ebb4802897fbfa65d7f2902dc78adc7c0ce9a86f557b8f35bac602203c2ed6096566645e3a6816b4bb3312ed2633e77cd2eb2fc484a82b3dc33e2668
 . . . . [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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