rfoco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:f5:f5:27:ae:ca:fb:37:7a:3d:37:c1:8c:c6:1e:53:71:0a 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=rfoco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:f5:f5:27:ae:ca:fb:37:7a:3d:37:c1:8c:c6:1e:53:71:0a
Serial Number (int): 432144190526436805051076588573329645072650
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: fe:e0:8b:9d:fe:72:d3:ab:d8:5b:c6:1c:da:d7:89:51:61:e3:3f:57
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): c7:dc:54:55:98:8e:f1:f2:3e:20:d1:89:da:d6:8c:c5:bc:3d:bc:cb
Fingerprint (sha256): 8e:7c:f3:5e:71:00:77:83:70:bb:e3:53:e5:87:98:63:60:ca:c0:29:37:c9:d3:aa:d6:62:c7:f0:f3:7f:32:63

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 rfoco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for rfoco.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

rfoco.com

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rfoco.com

Certificate

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

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----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 432144190526436805051076588573329645072650
 . . . . . . . . [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 10:04:07 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 10:04:07 +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 'rfoco.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 840046081516187935312963437443547390900123656720938825254016028643518530469354994456103512291185743276687436280016886332834880174488294855057145299716559973946990758136897246405605123453579717151051461662108571049993585010804970375647058630747653060601469983803464333174423853837904950618894849852275500536118588475926236715414996236323764355719461766474212430200135727484953490081873081734470808965317318030657404148235020874622896095716923463879265269242268020813959233051242880469180989238503122661395754394725588089491639010621136332421247725422569534868541466740391008133553374312825900708600877817783638947833723377227679414700340148631281838406260638538564560133408630150217145255578804184775292664299274723516331680451847139970020307190072301014424636701949900957528072809187815615029246327971705591663213595520572267269734750688136534536778517565189453341936235394334490637833416127518104035434059322960988838153957892981968768489634494123561957292955463903185211174700036383604390955201502698109065907049919177175417034558198747611774875204167505342482400603104526266296776365360900846488752169799277048438307799054498572269316382872705484869089519531578877004504258943522193602131344238546288992943383585172805900674641063
 . . . . . . . . . . . . . . . . . . . . [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)
							fee08b9dfe72d3abd85bc61cdad7895161e33f57
 . . . . . . . . . . . . . . . . [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 'rfoco.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)
							00f00076005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dc4ca2e3b0000040300473045022100964b7b5e4b5a364c2121ced2708eb945de1b8c2bbbb97ce93cc0e00014a0a471022006a6ce967c0e05644e152822d91ed4790367b26631d99fb81e0050374118a39b007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dc4ca2e360000040300473045022100b8f3c5848894cab361e6444e88fea5b2c8fd8bbc3fe585e45be4c702d844a33b02201b509adaebdb68992f78fee28c99fcc15a4c796b5092b495fe2944a885893f6d
 . . . . [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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