www.flfco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:81:60:d3:bb:0c:1c:03:40:54:a6:6e:3a:37:e4:d2:1a:38 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.flfco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:81:60:d3:bb:0c:1c:03:40:54:a6:6e:3a:37:e4:d2:1a:38
Serial Number (int): 305361988384084307842954380106597166881336
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 06:71:2d:7d:9c:bb:09:94:b0:4d:52:9d:1d:7b:96:bf:7d:4e:27:18
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 1b:0d:cd:35:a2:6b:30:2d:a8:b8:11:bd:d7:7e:e4:da:b8:8d:44:04
Fingerprint (sha256): e8:21:52:01:fe:a6:f3:bb:bc:94:87:16:0e:1a:5d:58:de:9b:95:27:77:5a:7f:7f:6d:65:1d:a3:93:e5:f7:62

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.flfco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.flfco.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.flfco.com

Other certificates including the domain name flfco.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.flfco.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 305361988384084307842954380106597166881336
 . . . . . . . . [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 2019-10-12 03:40:45 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-10 03:40:45 +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 'www.flfco.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 676444505023714453591253332455978053310964233586637672978752365003216364577222899870661784449940783505673285878037779355348712159581674416035967649804701599184133810539021269582108703704024509529569218511912717442602712453688887576995066036390647129472742775930282531531789001968499549651460050832900929960480496706323936989740763311591718973235898025194174564406029861125397157785574506069447017215247710495444698701075942193606498607953293016054845913865478204825977753017881353606442243537703682598652543137916413019326765726132573470230477453920319260996244960825124045122786161588156280914573299639150549370973372555454339824138554091400853629260924232819447669144727113523197667748804179166426693735707137220984856271612318440920773668675671599042815251934937048096470134844873634298517514261839168041049553126465557186667030954454964957132443259972555578429570002198297359756841697784324358970589581127506260387844333170497434727801698721992720634731332773537486157746278033948446508299208062384019634662492821432579692965278702352576258686891296294960195860485706788872283944335565316643555119172052154826048682749557590932695613011233191072968740002277068557032890380316486707360946061834683419836753961519522950196766217423
 . . . . . . . . . . . . . . . . . . . . [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)
							06712d7d9cbb0994b04d529d1d7b96bf7d4e2718
 . . . . . . . . . . . . . . . . [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.flfco.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)
							00f1007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dbe44d7a000000403004830460221008747ea0ec6953200a51362a8e27287ff5b7f6acf52d97e05ace77466c059ce0202210095f196ca5e4590973f3611ecf582a7c07355cdb9f3d0d8c71b5cf1fab16496a30076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016dbe44d7d500000403004730450221008cb36f63b5ed03bff9617098fd38d92dcae35357bf30c03b17c9ebbe60174353022003bd31df03a518a2c5108e2ecc84c4b5f716f6b60f4e59dc5e1c8da5476e054b
 . . . . [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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