rkoco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:e6:91:ee:05:94:67:bf:24:c9:2d:0e:a6:e3:82:d2:49: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=rkoco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:e6:91:ee:05:94:67:bf:24:c9:2d:0e:a6:e3:82:d2:49:b2
Serial Number (int): 339795776126307654731923355176603772668338
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 32:ee:9a:d1:66:56:d8:6d:3d:63:97:53:23:17:d0:e1:a5:b9:1d:95
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 79:cc:e8:3e:7c:f5:5d:ec:37:ac:b3:c0:c7:8b:0d:2b:48:9a:92:60
Fingerprint (sha256): 4b:46:ba:57:3c:24:47:91:71:15:9f:1c:1a:4c:1f:a4:d2:0d:9a:9d:ac:b8:ba:7f:f2:51:81:8b:0e:16:c0:18

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 rkoco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for 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

rkoco.com

Other certificates including the domain name rkoco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for rkoco.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----
MIIGSjCCBTKgAwIBAgISA+aR7gWUZ78kyS0OpuOC0kmyMA0GCSqGSIb3DQEBCwUA
MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD
ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0xOTEyMjUyMDMyNThaFw0y
MDAzMjQyMDMyNThaMBQxEjAQBgNVBAMTCXJrb2NvLmNvbTCCAiIwDQYJKoZIhvcN
AQEBBQADggIPADCCAgoCggIBANgY8jHaj58XhA/yCUmuWlL3hPW/xNTPElayOPok
hlLgXIJyorUWyHLtm+Jt27QJDbQNYRLY30am1CQh8AmFX0qLwKicQM69HyAzC6Ac
2Pjqul12Z2994/OH8DwhsHEF4EOx6EhrWpW2SXOMBtzShK3nxYdbN7J6q7wJAqU5
/ZHMQbAPhBAxxsz8WSDDuWcUb4/lUpcl7BWQo3mJbK2Fgid3jg93B5UFwV1PrXI9
uiCIW0ESBV+/ga1Ly50r/tALi1vakWIF3ySk/WF1TqnLpFh+MwoMqjUOCGe1BxhY
At4h/KXXPbNZlV54yF0Hm/5ylV4fOtWvU81NYAfBKzzVwdE0RQWJHiRi+N9y12l8
QZk/9wCbRM8SdXDIy0bcsgtc+hwguONMmI5Argks+0OKhJwAKzyfeK8vVcg4vSWp
hGd13J4smBNDHx95GFCYED66d48nwqZwM6zz14Bt3ojmLWy9s9PjJ0FPXhA8wr7j
9BrL56bVuPbb0XKXOU2k4t6AN33EzLV77Ho++i/hHrKeKb2VK00OBajrVHEdZeba
X7UkoMVhcbyXkG9EpdIoQAB8WSuTgR5Yov+QZ0SXYFYQYFeDessbVf7RA8ch0kFg
xsSB++EzKYTvGNoAS6Ms0l7APsIX2dKpxfCTEblIuz+J5VNwJCzqFJqGNW72PUu0
G1erAgMBAAGjggJeMIICWjAOBgNVHQ8BAf8EBAMCBaAwHQYDVR0lBBYwFAYIKwYB
BQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFDLumtFmVtht
PWOXUyMX0OGluR2VMB8GA1UdIwQYMBaAFKhKamMEfd265tE5t6ZFZe/zqOyhMG8G
CCsGAQUFBwEBBGMwYTAuBggrBgEFBQcwAYYiaHR0cDovL29jc3AuaW50LXgzLmxl
dHNlbmNyeXB0Lm9yZzAvBggrBgEFBQcwAoYjaHR0cDovL2NlcnQuaW50LXgzLmxl
dHNlbmNyeXB0Lm9yZy8wFAYDVR0RBA0wC4IJcmtvY28uY29tMEwGA1UdIARFMEMw
CAYGZ4EMAQIBMDcGCysGAQQBgt8TAQEBMCgwJgYIKwYBBQUHAgEWGmh0dHA6Ly9j
cHMubGV0c2VuY3J5cHQub3JnMIIBBAYKKwYBBAHWeQIEAgSB9QSB8gDwAHUAXqdz
+d9WwOe1Nkh90EngMnqRmgyEoRIShBh1loFxRVgAAAFvPvolgQAABAMARjBEAiAK
iuec7G2QBQhCz0oXGo0Z6oDqxmbyw6EZ0Qfo/zKrdAIgEdln7YkV1qEj9F1Fnb+X
8hQztI129tuTEe5ZpwkE5vUAdwAHt1wb5X1o//Gwxh0jFce65ld8V5S3au68YToa
adOiHAAAAW8++iWlAAAEAwBIMEYCIQDOiZposg4UEBmOgbyMVvh40eDYd9O2eMhC
S6kNuji0EAIhAJZ+RaBqfhrrQAKaBfXP2Mhy9IUOC2Ox0gMhDHmOGZ0rMA0GCSqG
SIb3DQEBCwUAA4IBAQBsilSyymwjNY/tSuLA69DOwiCtFj7S4xq7xb8J/gzlxKg/
3G2okYkJEJh+bxAea+WAm8kTQamdayI4O40AA+Q2QUzSX+r0s+zcRxxR+G8Mz4is
w56hPj3ShIW0DSvAYbdr72rxC3otz3RrutJR6/cIGCmmLw2iPvoXI7PG5nTZMFuO
4sJijFeAe/8vZBzRI90bCRti1UdtlhHx1n5pa8rdjMxpywsrwXXJ8Lgo9m88yeUy
jrq4alJ9FuCixuWcyHdpqWyAhgDZJZnVSKdrN5nOFESXTN9BeqhoL6CS64tx12NA
LTzfkRBsKaC2sgRkDMMJTEkqXuilcS6gk6YmPCJg
-----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 339795776126307654731923355176603772668338
 . . . . . . . . [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 2019-12-25 20:32:58 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-24 20:32:58 +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 '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 881600662050093797568546445036180470560299079599534082874446959664973885161419669782932413360776568114957878017385078974855778718158426927124436133032105130261399963507639827007251893163510650919462433095314589730585474399556700815119747646999826881589594931785651842839884391137887913583456339570216989392886115486534255443896156027395296338740779426290059150876414344379605516623475444194322374367107470766167394092069319411987502409380520069039457974345729492146525428258429285019897851686705769299590388934913043733882697268328693751576508765840310218769237733054362397972306637737087491265048644738400104234908548424401609903805889170780701433120440836136902414576289608772268808334478393865236073782892423051376746588428317174188267697957447486320252778802278398682732557209845269179616806723054301980213894180127723029762289756243109147119060922943288501721876029445216510691086334461914147646047390894891466254828503466564443922559526617019582484429909603342286074489369133375780257559100442462826519277241571761925401490961652929170990210894836829110095834625555791943909602184898173293768331762508383733465948107878354373260226551171725977825594921082187580215343298642259126018361369131910873143102236567196840304247003051
 . . . . . . . . . . . . . . . . . . . . [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)
							32ee9ad16656d86d3d6397532317d0e1a5b91d95
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f00075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016f3efa2581000004030046304402200a8ae79cec6d90050842cf4a171a8d19ea80eac666f2c3a119d107e8ff32ab74022011d967ed8915d6a123f45d459dbf97f21433b48d76f6db9311ee59a70904e6f500770007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f3efa25a50000040300483046022100ce899a68b20e1410198e81bc8c56f878d1e0d877d3b678c8424ba90dba38b410022100967e45a06a7e1aeb40029a05f5cfd8c872f4850e0b63b1d203210c798e199d2b
 . . . . [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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