www.rkoco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 03:0f:66:21:6a:e2:d2:49:95:64:41:0e:3d:69:0b:64:51:77 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.rkoco.com
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate has expire since
Certificate Details
Serial Number (hex): 03:0f:66:21:6a:e2:d2:49:95:64:41:0e:3d:69:0b:64:51:77Serial Number (int): 266576848068367273484600335119245098897783
Serial Number lenght: 138 bits, 18 octets
SubjectKeyId: ce:6e:18:d4:c3:da:e1:99:b6:07:fd:39:29:3a:a0:50:69:0b:33:aa
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): d1:16:6a:49:af:29:31:63:e1:b4:7a:f4:bc:b4:94:7b:e5:7b:f5:da
Fingerprint (sha256): 97:5d:a5:e9:84:0f:f3:da:7d:c7:74:33:ca:93:85:98:a4:12:2d:c4:97:21:66:09:8b:16:d8:8b:22:35:80:c6
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.rkoco.com
1
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.rkoco.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.rkoco.com
Other certificates including the domain name rkoco.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.rkoco.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGUzCCBTugAwIBAgISAw9mIWri0kmVZEEOPWkLZFF3MA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMjYwNTA0MzJaFw0y MDAzMjUwNTA0MzJaMBgxFjAUBgNVBAMTDXd3dy5ya29jby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQC1qKgXOBQYfm11oBg95M6x2ex8RgfyNz5T rdO6Axa7StRuwQxxCjL+qiYzWplazISea75A5BC1GeZ4impuCrdOyBQKBKKDz+kO Ww6Nzvg2bls5EKduJPoFgroIOFFwuJ0Grl1rzn6k/iZLDv23hRdP/cGe22sprnaN zpWNKpd2ptvk2hqGNSq6K4mbwsJSS8VZVjssF7dPaYZAZrzS+WCdNKDjzl83/WHs yu7sh5aexg3GUtJeHtgITmKuspB2rjnlOzaH2TQk9jw6+m4GlaQBiIPLeqn9bHTf qFhlU9JlB5TOOlmewJdyrIVqClhlcwIGfK0mJJ+pkYRRe9r7loWX82pm7HIPi1sJ QQiIFsZ9+D+WDrbii5LKdmL66KjSw0IpolZ050hKQp20DH3OA+X8wJfkEdR4FsPH poRh/ImvidOZt9hyJ1wVNwV0OmQK6eGYWI7jgrFYYDZECEIJkxi6tRtCAdblChwM kF3rbVQr6jZ93Nbgp4I2CT7sTbmifsPLsxDMUdS8/Lr/8Tb9Ci2/C3tkb811Tpme /4MZL9BsGN/L/J9RmrVch3Olk3tPt6NW955xdjaQCCzJwBj4zy1choV2Eddlnmj7 INoPbxpjfmwtxZXTpJHdSfKPiBdO97Ie0VCLWOlsFIytcGCmqMmd5Yb+9dvjI6L5 J0zwLev2QQIDAQABo4ICYzCCAl8wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBTObhjU w9rhmbYH/TkpOqBQaQszqjAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5ya29jby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEFBgorBgEEAdZ5AgQCBIH2BIHz APEAdgBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW9AzoFbAAAE AwBHMEUCIQD7emW3E4qjBYJ/niBxOfXUciH997/KvMnouU5pLcznlgIgaAh4h1FZ 2FJ2COsd6sszOfPi70nuJNuSa1krzOJXZZwAdwCyHgXMi6LNiiBOh2b5K7mKJSBn a9r6cOeySVMt74uQXgAAAW9AzoM6AAAEAwBIMEYCIQDqeOtl4EGmKAfE5mU47CXi 32N8EUdSIb13nWZntS6enQIhAIirlxRw0XHzzHL7oTpCo2V8tU1n/1cUZnDHRzfJ RxntMA0GCSqGSIb3DQEBCwUAA4IBAQBSbn4V6r4synh1znvw6UI6JBpNYTXSNcI7 et5qTFGsA/RU45PUNy40SION8MDfBHIhCXr8BwadKT1aV+fvBT+dmzWBOdR5MDMt MeCqDGmVe/3hIYlk7hVI5PElxTjqeWTTwyxgDAyIqPiyCmpk4qcKm4xnU7QGj33C AYXsfwfXNob3pxIUBD6soywJYGNMUflm5w3WgJumB9GKEO8faBxJv+oDogzSv2Xw cmJYiVEml1BHWEOlgTMIEuDBveHlb4fogVcguEEE1VkTsIrv774F1a6NeoulSaws l0NR6xbYAO7oFJHtX+1xEJ/0PYBAeAbaJ4NgsfnOk71D8iu+SJC5 -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAtaioFzgUGH5tdaAYPeTO sdnsfEYH8jc+U63TugMWu0rUbsEMcQoy/qomM1qZWsyEnmu+QOQQtRnmeIpqbgq3 TsgUCgSig8/pDlsOjc74Nm5bORCnbiT6BYK6CDhRcLidBq5da85+pP4mSw79t4UX T/3BnttrKa52jc6VjSqXdqbb5NoahjUquiuJm8LCUkvFWVY7LBe3T2mGQGa80vlg nTSg485fN/1h7Mru7IeWnsYNxlLSXh7YCE5irrKQdq455Ts2h9k0JPY8OvpuBpWk AYiDy3qp/Wx036hYZVPSZQeUzjpZnsCXcqyFagpYZXMCBnytJiSfqZGEUXva+5aF l/NqZuxyD4tbCUEIiBbGffg/lg624ouSynZi+uio0sNCKaJWdOdISkKdtAx9zgPl /MCX5BHUeBbDx6aEYfyJr4nTmbfYcidcFTcFdDpkCunhmFiO44KxWGA2RAhCCZMY urUbQgHW5QocDJBd621UK+o2fdzW4KeCNgk+7E25on7Dy7MQzFHUvPy6//E2/Qot vwt7ZG/NdU6Znv+DGS/QbBjfy/yfUZq1XIdzpZN7T7ejVveecXY2kAgsycAY+M8t XIaFdhHXZZ5o+yDaD28aY35sLcWV06SR3Unyj4gXTveyHtFQi1jpbBSMrXBgpqjJ neWG/vXb4yOi+SdM8C3r9kECAwEAAQ== -----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 266576848068367273484600335119245098897783 . . . . . . . . [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 2019-12-26 05:04:32 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-25 05:04:32 +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.rkoco.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 741103306449311887408586216228924241174737205474460743068077780263935054401505575334079951867036631496694778721706797928536025267354876827826637373446854452911354766818817878776095388886742875535954099874944031525773575734547595235177877215210610977844809800459632409418092393763866043130171473073764840720803289472080361255998920480606175410241031169350496752091502287410663968123789725280352743218476065689721638876266454372950339797907826542347002870968669890363620398234286289804628794912904304295292688007564883217129919309651148366271266886982767951515992775740783318056683576348046821709637988144203243447675797515592566120051730356846911797450270441936568912611512037312121506058090488426703484737448147181144253106394036589504666903057810351541785841180305054941771648368968653659487052560590606176662433060167510871219725045574763215476014366411904755744583242972782051898343515989689921873530561807606357824246919896246615124459507248832368629083799210367249868086692982242443293324605622933313177628743338110960886649467053465080043074330458897673741787835739843433821792465953787179976797364548834782604349489047856483924468094798860242892549263683102004062690334660565756383589363776264864137898978900692437635164796481 . . . . . . . . . . . . . . . . . . . . [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) ce6e18d4c3dae199b607fd39293aa050690b33aa . . . . . . . . . . . . . . . . [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.rkoco.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) 00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f40ce815b0000040300473045022100fb7a65b7138aa305827f9e207139f5d47221fdf7bfcabcc9e8b94e692dcce7960220680878875159d8527608eb1deacb3339f3e2ef49ee24db926b592bcce257659c007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f40ce833a0000040300483046022100ea78eb65e041a62807c4e66538ec25e2df637c11475221bd779d6667b52e9e9d02210088ab971470d171f3cc72fba13a42a3657cb54d67ff57146670c74737c94719ed . . . . [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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