www.fflco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:18:b4:7d:45:34:c6:a2:b5:91:58:72:58:e0:34:73:7c:e4 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.fflco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:18:b4:7d:45:34:c6:a2:b5:91:58:72:58:e0:34:73:7c:e4
Serial Number (int): 356855832013159713258256733416379460582628
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 43:a6:c0:1a:74:21:9e:02:df:8a:a9:e9:5c:4b:31:dd:11:b0:37:7a
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): b5:b1:96:9d:aa:cc:8f:3c:d0:a2:8d:79:4c:3c:74:1a:22:53:3e:b4
Fingerprint (sha256): b3:3e:06:25:54:d4:68:b2:4c:b0:50:24:1e:9d:e9:7a:3b:4e:8f:20:31:c3:c8:9b:d7:97:6e:a2:6d:33:99:5e

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 www.fflco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.fflco.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.fflco.com

Other certificates including the domain name fflco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.fflco.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 356855832013159713258256733416379460582628
 . . . . . . . . [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 02:20:54 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 02:20:54 +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.fflco.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 996697049525480478610623191518880988787146138116632122070223862230899660588277549749848007556459385873678575693975615561824073767347875354746788195729665591608796368325967774498652049808045437310222294682193012995385355901893277850854502041491961102758372350803998098370048970627098890835544062332217675161927396042862776190364085978817810545457168706513368685350792724073365745137052658422819721428114689702724443392967695671132816815223400568822173536923647618136099364575605318505343619842558103635364779235419701614641238374587258947560603588332325359228474885152613830471459614856871239271677522287021623602132866459042609043781297790203437663146550938719684839141364054806905533822149542514542734167694901588497544171055942217944956946776661121748657132613445398899116858744603155352173617246030607686256570800875449859469958483929600262008276743614244221845110808439980886166340374496171290971294179082409678896459406833445596142573371554458771824091910826114549964319505130883763777354577047295970519046969623423597730632578374368238894564121134539159970780782025443407632304741510223641792368079626014456109098264582589283255651559910104973946633828611440588619203229850159852758573058630662440761524498972894436833539249563
 . . . . . . . . . . . . . . . . . . . . [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)
							43a6c01a74219e02df8aa9e95c4b31dd11b0377a
 . . . . . . . . . . . . . . . . [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.fflco.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)
							00f1007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dc32218c30000040300483046022100a6275746adec1fd5c802afe82bdd4363aaa685629c33357375edbe1731c242710221009ca91c6b49ea4d43041ebca78a6edbf4ad1c372649e8933c7b1d448ae18a127d007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016dc322194a0000040300473045022100806a847cca7afd71bdbdd7c6bfb2c1ebd31d586064cb283c9d66b4b25bab24b502200e25b3ff4c53d273ea01f1ac2d94eae8cbe9808c6509a341b89e6278e33f0b5a
 . . . . [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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