rfg100.com

Issued by R3

About this certificate

This digital certificate with serial number 03:96:98:df:47:d7:dd:a2:29:53:17:44:f4:05:92:38:79:cc was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=rfg100.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:96:98:df:47:d7:dd:a2:29:53:17:44:f4:05:92:38:79:cc
Serial Number (int): 312582414828133998966758940398227916618188
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 5c:72:bd:b8:6b:4a:7d:8b:67:2f:7d:f6:2e:2d:a3:38:01:14:51:4e
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): ba:8c:a6:e1:4b:51:e2:bd:26:b3:fc:95:5c:1b:b2:83:e5:cd:01:1f
Fingerprint (sha256): 1f:db:3e:d9:25:35:e3:70:31:55:7f:d4:6c:cb:cc:69:82:39:58:6b:13:b2:07:f3:7e:33:13:45:7a:81:9d:cd

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate rfg100.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for rfg100.com

Public Key Algorithm

RSA

Key Size

2048

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

rfg100.com
www.rfg100.com

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rfg100.com

Certificate

The complete raw certificate details for rfg100.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqTT/K9TZE5sh58rjef0A
+OFCI02PC0Rgg2Y7XbApRM5gP9BGIOwCIYtJRlkXH80GRB/LXW+aCoHJK2YvkdiB
pWIqh2wJqB37T9SINLC+5RpqR7ROcB52RUGWz7LUinwTSt/MFupVB3wC628qNdFo
QU8sKOPr903EK2jAUD64BhDVACbTK3pNMUAkbe0jvjAFc7AjCoE5FEXqhOBgFCTa
EAhwJxphe/Ay39mYlzkcR/wEHH1L68Q08zrKIJc6889KR+9pj0Uly03Te08bpaJE
hR87jZyQrZF/09Rl7NKZFDV25baS/wPvl+eW3Dr3YgHLmWBLn+d2bRg4d9fNmbuO
CwIDAQAB
-----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 312582414828133998966758940398227916618188
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-02-08 17:51:46 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-08 17:51:45 +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 'rfg100.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 21360407216900043497031786934836568097159422625928739180949510863881228819377191642030525140059506179484884837046085142555848225775238160132688990611197019294223439402843234238421870521341767750803508353488490089675636691456470428173191582980087847446739280010518048684243862672874759258531490478616347565794891460274902884371421500586542381693924711804125285374384377013564449851224238486811762955327295890953892304298039410664437130243182564248649451201949572842538606860386927560432686867636244652821148709701371431436996060739010457227754556973245305608881689932223813448102771395116239564354726708274109274099211
 . . . . . . . . . . . . . . . . . . . . [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)
							5c72bdb86b4a7d8b672f7df62e2da3380114514e
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (30 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'rfg100.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.rfg100.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018d8a0fc80e000004030047304502202a684290bf3309ca0db9b782212f91cb905239a8bdb8259566eca6dbf28840f9022100f6cf9be76dd53e7e43dbcbd9bf340b659785b22687187414501cfa79e56d474e00760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018d8a0fc9920000040300473045022100ed0ee765e82e13ac62d26bad1f53c0dd9547d6a7c61d159850be2a33a6be8ff402206e88500050015f7f4ff183f796f37a4a6d2223c54e35daad6a844278759f80d8
 . . . . [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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