rkoco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:61:fe:f6:61:3b:54:1a:79:81:30:73:ca:81:71:91:f0:45 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): 03:61:fe:f6:61:3b:54:1a:79:81:30:73:ca:81:71:91:f0:45
Serial Number (int): 294683150574662560984372616700450640621637
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 02:b1:e0:21:08:37:4a:9b:77:3e:96:74:dd:bf:6c:82:8e:5e:f7:6d
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 93:c0:c1:c5:41:7e:be:44:79:42:1c:fc:da:25:c2:c8:46:35:1e:44
Fingerprint (sha256): aa:ca:6d:97:95:de:38:6d:34:0f:87:c3:c8:65:0c:63:ec:6b:f9:9d:03:1d:a0:cc:94:14:62:d5:dd:eb:14:83

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-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAr7k5FzFAeq/Uf0PdfO1a
s3WtsW8f1oEpXgZ2o4MJHGpSM6gqxUCtiAZwEz+U6QCZCq1OPnQDJU8LFUCAtnST
4EEc770tiu4NNyODvljkZxjMN4h82MTgZizknJbikEaaRQKKQdpTW3owmH8dY5Rx
Xe4ExRC4GLlHYwKxs4LatWDZY7Q7YbiepACERCWuIWvXWM00nCD00lUS3zcg79Hf
cmOibLn87y+451jGvZdsR8K/XzTNnFTFvUihui8FrxVcSbxsivemEiIUK++7x1LN
h8SP8qLN23HyUF5TSU3xu++ShVRI232AFqFQZ05Z4py9Z37TdyyIQ76LdZKII29c
pmE/aUe/wvamO3U7m9ItuIsaQpuVCgf+2gbxQpKgTxaJaj8kPGIPsHMzBouRU7et
FAFX9mSic8cVn6ZvEWL8Vhlvfv4GodeM5LpIToSHxx3CHiZnM1uZQK9WEHxUBefY
coDOz4QRRmXKmi9yEbbd/yZkcvVayvLOq7I+YMTlSxiih80nrz65r2F/eDX2GDnW
dfYw5pi0jUjOCdQ76lIEtGryZdgFaoJ5Dr56FUe4xkQKWzTgVLgNZlmy3BKVGSmf
RJ+BtzsrGP80P245s17CF8eZCKXM51VBm1Ad7lGfvuBdaSt18lNdVC3Jgi56F+QK
BF0EI8hJyk0thrtAbdtPQ8ECAwEAAQ==
-----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 294683150574662560984372616700450640621637
 . . . . . . . . [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 10:05:09 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 10:05:09 +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 716889446101059181610256954074817915431497527569492873304975518920737904578168305148510163522035855131788701734230913131041666920798014702794851888331796349330901001848079265264936659125617760084442030448372636599546541352360760368796873138996425937128637446169509876677494410946401041734993362013719084236015712161424801343976919631196246102490843446115961015340131567186379032411539990556900875471713901056221237081142976364100332252949724452572762940340851969159479909095399902064299102210735140939484227261176475562748006307826324083654578193397640607161575450449592965762447968193423637721153213369987936565186841242959804430290411025565057900251290148433528035471326706313979691970014866859418560649684166229685480307141006615309215368662956596478947522726675821039349547806685702713814349654730416593615222468877787208569044615708131689534607291114717946148897137230402017175963882965654420691818074324186705831954898999176293953763563318205698556949445725473960679663378258388300579689140101632298128175051675589299900361893505662958514079338385534809854759077209868283281074137863737040441254664544738251638638357741246841415983071099314278737317528730808680308903301276290781954245919798072497667942596738188166906065667009
 . . . . . . . . . . . . . . . . . . . . [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)
							02b1e02108374a9b773e9674ddbf6c828e5ef76d
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007700f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016dc4cb1f0d0000040300483046022100e400434d11e0b83a85f91aa86cb9a77a20172a49a5fecd5a34dc2e36941adbff022100cdc0425247ec4200954bd997421dfe9c23af4d3b8b21ac05fb9f4b2f32218f00007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc4cb1f0e0000040300473045022100f7bc7396d00eb5bce46ac01109aecda283b140b1e8ee113ca6758ceb2fe1adee02203f552c4d6c67076a29afd197d800e99d60ac6c68e59890be23a8146dd739c437
 . . . . [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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