www.rkoco.com
Issued by Let's Encrypt Authority X3
About this certificate
This digital certificate with serial number 04:af:64:c6:b8:cd:15:b3:11:a6:bf:fe:b8:22:a1:94:6c:b2 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): 04:af:64:c6:b8:cd:15:b3:11:a6:bf:fe:b8:22:a1:94:6c:b2Serial Number (int): 408132512560773555229362714955611507027122
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 1d:8d:b0:f2:5c:b2:dc:31:58:e2:05:c3:fc:b2:1b:9f:85:6c:f4:35
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1
Fingerprint (sha1): 72:7c:96:1e:79:54:8b:01:73:5c:c6:07:69:be:6f:35:80:b4:ef:c9
Fingerprint (sha256): 98:fe:a3:02:18:b5:38:b9:3b:12:88:6f:ec:9c:33:4c:ad:ca:48:41:cf:88:d9:79:82:90:73:02:d7:35:f8:cc
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----- MIIGUTCCBTmgAwIBAgISBK9kxrjNFbMRpr/+uCKhlGyyMA0GCSqGSIb3DQEBCwUA MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEwMTMxMDA1MDFaFw0y MDAxMTExMDA1MDFaMBgxFjAUBgNVBAMTDXd3dy5ya29jby5jb20wggIiMA0GCSqG SIb3DQEBAQUAA4ICDwAwggIKAoICAQDA5TSYbPz72ruS3X2EHxSDbG3GdLQHGmPu MJ/JjNiEopFrG0IFMhmkcU46EnexZeTVUGc6lLJL0iXk9gayCC0bumVQEFVkI+zm WQhceSRc78kwbpFx9BBL+qQJP5w5ExKqZsIK24gpRrVF6u6Tg4a6mtCwEFSFwRrb 7WKbYDTXa5iRu5VZZlplyv0Op6e9ZZabmd265H7SBFOJFvKB5Ek97l1Dq+n1TjHe IKKaOarsUdzW18XF3vu0BZ9fMYLySPEEqYuYi7Sa8aoEuhb9hpX6yg/Pxr/T4VVX 4F7/VyIBamxRiFrgsyVBHDkJRl1oyBFr+bwj3ztt/nRgsM27sgt1UxsrAP+X5ZO5 uqQQ72eCQCXi2bpzuoQQUH9T9PC5HpGyGe1X1XFBxoMgQ8RCaxz3xnZ17XwSVX2D HhOw3uLA3ymdirjOF8MIlYym79r8V+IEXLKKf0GNWI9XlPSLgKLMioPOKedLQsHZ roqZFCoCsaU3jQ0T8yf2LneGLeTGUyirot1OdARqF+cZ0t1wKwzDzc0e/z3+hD/x R9tDNr/S9Kpw28rJtPDDyxBBVfataAhLIeoza6zOwidB+JYv0NzUUKQDXM0+3wTr eniX7if4wx+VBHmny8fEAUIMzWdPjh2e0uNL77WXdB2WNBTwmvuFd99GvnWuS9+E euMW9QADVQIDAQABo4ICYTCCAl0wDgYDVR0PAQH/BAQDAgWgMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjAMBgNVHRMBAf8EAjAAMB0GA1UdDgQWBBQdjbDy XLLcMVjiBcP8shufhWz0NTAfBgNVHSMEGDAWgBSoSmpjBH3duubRObemRWXv86js oTBvBggrBgEFBQcBAQRjMGEwLgYIKwYBBQUHMAGGImh0dHA6Ly9vY3NwLmludC14 My5sZXRzZW5jcnlwdC5vcmcwLwYIKwYBBQUHMAKGI2h0dHA6Ly9jZXJ0LmludC14 My5sZXRzZW5jcnlwdC5vcmcvMBgGA1UdEQQRMA+CDXd3dy5ya29jby5jb20wTAYD VR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEFBQcCARYa aHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEDBgorBgEEAdZ5AgQCBIH0BIHx AO8AdQBep3P531bA57U2SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW3EywG0AAAE AwBGMEQCIFS+XkiVOgVXb39npglOfLYcG7CWDYq1EoXHJ798vp6OAiA0cbvgH2qT s2Zs2JPwLMxv/zZsE1W5W+LhU2EebzV03QB2ALIeBcyLos2KIE6HZvkruYolIGdr 2vpw57JJUy3vi5BeAAABbcTLAbAAAAQDAEcwRQIhAIInh2Q+wT99A3MR7HLqEyUy vqf6O3wTbu/GnrCiWGrXAiAJDWKLjKgm+5qKH+P+S8EUvKj493/PHeMeCOEAbhk+ LDANBgkqhkiG9w0BAQsFAAOCAQEAkRxAfatyXlKZInD5xR/jiX0J7e93PzLUILUD hBMnkHElzFiOAwsegl1NhWAgCHxEgUqBhVmoOuuDIfg/DrhBzSHSeWxyX986ySU9 as5nnehqTfuXS1gQADEeuAe0qUy7ktrvPJM4pG76d9WbQLe1RZ3B+/X92SVzT1ki JYpKa08L7mkpSxtmvcxtIiSNvlt27PNRnjg/CtkIJuGzoki9c47hTYFt+eotu9hp 6BcpLXqWeFTa4EIFZIuDKwEryOQiFEgDYAPhx7GwE8Bd+knBOPIjlw+5jDJwAbsP MZ/Fjrkm+xPa2mIOGoKyKGicfj9lwtKy8b+03qczucbjAFWfaA== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAwOU0mGz8+9q7kt19hB8U g2xtxnS0Bxpj7jCfyYzYhKKRaxtCBTIZpHFOOhJ3sWXk1VBnOpSyS9Il5PYGsggt G7plUBBVZCPs5lkIXHkkXO/JMG6RcfQQS/qkCT+cORMSqmbCCtuIKUa1Reruk4OG uprQsBBUhcEa2+1im2A012uYkbuVWWZaZcr9DqenvWWWm5nduuR+0gRTiRbygeRJ Pe5dQ6vp9U4x3iCimjmq7FHc1tfFxd77tAWfXzGC8kjxBKmLmIu0mvGqBLoW/YaV +soPz8a/0+FVV+Be/1ciAWpsUYha4LMlQRw5CUZdaMgRa/m8I987bf50YLDNu7IL dVMbKwD/l+WTubqkEO9ngkAl4tm6c7qEEFB/U/TwuR6RshntV9VxQcaDIEPEQmsc 98Z2de18ElV9gx4TsN7iwN8pnYq4zhfDCJWMpu/a/FfiBFyyin9BjViPV5T0i4Ci zIqDzinnS0LB2a6KmRQqArGlN40NE/Mn9i53hi3kxlMoq6LdTnQEahfnGdLdcCsM w83NHv89/oQ/8UfbQza/0vSqcNvKybTww8sQQVX2rWgISyHqM2uszsInQfiWL9Dc 1FCkA1zNPt8E63p4l+4n+MMflQR5p8vHxAFCDM1nT44dntLjS++1l3QdljQU8Jr7 hXffRr51rkvfhHrjFvUAA1UCAwEAAQ== -----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 408132512560773555229362714955611507027122 . . . . . . . . [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 10:05:01 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 10:05:01 +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 786944304254572290260412972545075827430078573969681583781242878326131213927043656673675758383996035109376609757568423278229126772341673085914236277232744149764224990884996571004304363980067219334971515636400789243690924906353766103679562746616981916030833159280685961718839120048580704853397619043715337409410497373496281004156384495617993776498475341511586747388267762855505527743538745570801076178607308886627315948099837197307100711965678695495675713106190191324569635543368264400907833682554609144065114807840293793118489845468690988805779791929263914912876100899649147417354924649043007271701338878659977616713094037410494884244443501327395912639533548641705840067074862154584257332559119929887995410836657293228966755619790275383472961270254545484060918820370115376351660687053383203868148868933153081469160550764253752087959899251265549162395194598423938293118690274433696339498987408802487317708905405174057056165982885948038847611843650885583895717195155290714042749619918091167539719321641259823815617837737928574572935297187558315654101227803655554538634991516067541867615036494706766512151226024367422598112135286296512233112733270065315630390273080331557599765339417362146688321258901682591469758880811722928727342973781 . . . . . . . . . . . . . . . . . . . . [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) 1d8db0f25cb2dc3158e205c3fcb21b9f856cf435 . . . . . . . . . . . . . . . . [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 (244 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes) 00ef0075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc4cb01b40000040300463044022054be5e48953a05576f7f67a6094e7cb61c1bb0960d8ab51285c727bf7cbe9e8e02203471bbe01f6a93b3666cd893f02ccc6fff366c1355b95be2e153611e6f3574dd007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dc4cb01b00000040300473045022100822787643ec13f7d037311ec72ea132532bea7fa3b7c136eefc69eb0a2586ad70220090d628b8ca826fb9a8a1fe3fe4bc114bca8f8f77fcf1de31e08e1006e193e2c . . . . [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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