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:beSerial 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.orgCheck 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----- MIIGUjCCBTqgAwIBAgISA1GBBvlXoFj6HwGdxSjvF3C+MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTMwODUxMjRaFw0y MDAxMTEwODUxMjRaMBgxFjAUBgNVBAMTDXd3dy5sa2xjby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDhg8Z+kmzkvm/0qaOonkhThWqP5nI/RvTI KIdL8K+23Mrst2yXariqgVDPSMcKrTZ8aXTXx37L2gcRkqxc84R6G2WowrBG8XN8 HQSVy+5DSOLFOSVyaM4uJjNXmi/LWkM6GqIf5KqLyRq/ZQ0easfHhyCt9wkjBwJp cZV+sAOYUapVbEYDAIJBc1UiLYGkf0OTL4BpaBOGQ9ahcf68BjRBkdO1cgpvatyX LpAUIt5ZKowwj6XntMebf62J6Xlxs52P6GaSoTPyY4EzoeYy0T0uvaNmze7ZMap1 ydmCPTDjt85JNzqlpSpJhfa+IfM6oqwSZ/Ya4zOnV4Abl3tOjZKgPzsF0QGgBeJC QgJEYUBhVk7VPPN/UzCzAiC4lEzU0t5fJuTJN4Kh64hthn1HEuXcl+gxJijIyj/j 8hCbowDQVk62hAX7MOcbTNNMk6EkRUnRFDJXlw7GGenVsFq0nQoLpz4Swe4u00db nCBf2qHWHnDEKO08jNhdJELrc3Nf2yOtbF41u1rYWgdI8KQHnBm+ObLDIpSN534y 7lW3hmuc525Lp0Beaeuxp4RrJxYvZg/DLJYc4qubtpKgip2HKvHzCNXAFcF+68r7 jVosEf4SYgTAKvAT0o8itlq2136sG0nYszetS+sjkUrLlCaYSIBiR0EsJ8uAcgVF 7l7od7kixwIDAQABo4ICYjCCAl4wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBS8ZcsY Bk0WDtZC0OfsWio006DLnjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5sa2xjby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEEBgorBgEEAdZ5AgQCBIH1BIHy APAAdgDwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAAAW3Eh50tAAAE AwBHMEUCIQC/q9urqahxjOVPosYzLFXdpHpseZRfZNXIemMDHolIfQIgA963lZ+6 RHoz0M6Pn2vghtFI21aN/staco63zz3ApWwAdgApPFGWVMg5ZbqqUPxYB9S3b79Y eily3KTDDPTlRUf0eAAAAW3Eh51mAAAEAwBHMEUCIC404WO5lbrnKwLjAkOwoiy/ QXuujYtnNIhrT1H1TxPCAiEAt9/iJ3Tam0a7EUft28TGBjXndqQSwxcSUjjCIrbc qzUwDQYJKoZIhvcNAQELBQADggEBADr1L0iq9tixlFFQlODnrOtdqJg79jSoqsrt Jt1LB8zPEUxUanZGeF9J1Rr8yopBlpTSg/o+HwabFNYyI9DZPrC8ISPg4ur1Q+QX iwFMoRbNFQHRJOIuRl2iJLpmzKERwtLQCt8r8KQZvSohtcPKOpdxiPcEW0NK2Jnd 7u54wDYeHJz29yBWahdcfCcvWD4Mk27zPXXHaJIkjiAy1dNZWpHr0fKGoI3IkYQZ qfX41LoP/0T1ZfFg+3mvivPI7fQyRjtOqmoX6svrVG6fStqRTvUznk9B8KzSIcmG lzD7a/UwO3gPwxRqtCQxe3tPrDNjY2VQiVt2W6NV/0qYRwlsYTE= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEA4YPGfpJs5L5v9KmjqJ5I U4Vqj+ZyP0b0yCiHS/CvttzK7Ldsl2q4qoFQz0jHCq02fGl018d+y9oHEZKsXPOE ehtlqMKwRvFzfB0ElcvuQ0jixTklcmjOLiYzV5ovy1pDOhqiH+Sqi8kav2UNHmrH x4cgrfcJIwcCaXGVfrADmFGqVWxGAwCCQXNVIi2BpH9Dky+AaWgThkPWoXH+vAY0 QZHTtXIKb2rcly6QFCLeWSqMMI+l57THm3+tiel5cbOdj+hmkqEz8mOBM6HmMtE9 Lr2jZs3u2TGqdcnZgj0w47fOSTc6paUqSYX2viHzOqKsEmf2GuMzp1eAG5d7To2S oD87BdEBoAXiQkICRGFAYVZO1Tzzf1MwswIguJRM1NLeXybkyTeCoeuIbYZ9RxLl 3JfoMSYoyMo/4/IQm6MA0FZOtoQF+zDnG0zTTJOhJEVJ0RQyV5cOxhnp1bBatJ0K C6c+EsHuLtNHW5wgX9qh1h5wxCjtPIzYXSRC63NzX9sjrWxeNbta2FoHSPCkB5wZ vjmywyKUjed+Mu5Vt4ZrnOduS6dAXmnrsaeEaycWL2YPwyyWHOKrm7aSoIqdhyrx 8wjVwBXBfuvK+41aLBH+EmIEwCrwE9KPIrZattd+rBtJ2LM3rUvrI5FKy5QmmEiA YkdBLCfLgHIFRe5e6He5IscCAwEAAQ== -----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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