flku.com

Issued by R3

About this certificate

This digital certificate with serial number 03:83:8a:71:1c:53:8f:96:81:c3:50:13:85:d5:48:a4:7d:9a 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=flku.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:83:8a:71:1c:53:8f:96:81:c3:50:13:85:d5:48:a4:7d:9a
Serial Number (int): 306097868629414856178552789318810825162138
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: af:8a:bb:5c:78:78:b5:77:24:f8:ec:08:f8:51:ce:83:6f:ea:07:20
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 3d:39:d0:07:bf:12:34:e8:87:ae:0d:63:13:2d:e3:64:89:f4:4b:c9
Fingerprint (sha256): 06:6d:7c:4d:7c:97:4d:40:40:16:53:7e:e3:71:03:62:1b:3a:e7:a2:45:ca:38:fe:fb:d0:8a:21:9f:60:20:2f

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

Revocation information

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

Check the revocation status for certificate flku.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for flku.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

flku.com
www.flku.com

Other certificates including the domain name flku.com

(limited to 100 certificates)
flku.com
flku.com
capitalsweet.com
couturefloral.com
www.flku.com
www.koin2kredit.com
slotsau.com
emsuniforms.com
escrowautomotriz.com
www.villavia.com
easycashday.com
www.enlightu.com
fredericksburgparent.com
www.chinartv.com
flku.com
www.citidirectory.com
bullport.com
jeremyarnott.com
www.moldremovalproducts.com
flku.com
qualtrex.com
www.legittokens.com
equineplasticproducts.com
www.doublebubble.top

Certificate

The complete raw certificate details for flku.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 306097868629414856178552789318810825162138
 . . . . . . . . [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 2024-02-23 17:47:28 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-05-23 17:47:27 +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 'flku.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 675836628366740812859674685891905671982347411820344487990452404704334026709615782242933950970746119257488962713021703954032958749126720518701751697077022732231550636940158181252438395454589824357602919156472490252260862429779947878534165195258426800683593139574197897954123185754358182527921385875954513565414010042253643550626833068314150905752491919822789007887126223528865086039379865280280012642022618794781712494637283816428487464034593318994973350936562796112833610634170123818120621557143356853321206456266544623910289823462767530244257529641532505097467542423833774628647316580233653791084914902260841911390680342594381277873838271147732573143661309585902593790266832249553724008309842770653496990546197311454633782610792334166386490150627690650944683659857268461379357360737391421505107779620182118477815590609906123329125570910960503259078025756894914414599149631093465438097871322695078849649104491577187798535443671177661199967070126843114961647964171158453724140519135118919496775209511483544453312384380502749073750506581449453346481169379526495420946499979410320611665311089904727716378083040834947040198008100930883810786408549404610481310384423972295198122001051164166755870376669836762282009465144375501463783656857
 . . . . . . . . . . . . . . . . . . . . [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)
							af8abb5c7878b57724f8ec08f851ce836fea0720
 . . . . . . . . . . . . . . . . [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 (26 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'flku.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.flku.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f1007600eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018dd74b3b9c00000403004730450221009696f1111a888aed79c88363262f0e295140b02c49db072f824e28bcfc4335010220076ebdeffeba25a880746d4abbfca9af3db60eae250ee6405bbf3dfdd58618e0007700a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018dd74b3c2d0000040300483046022100f95d98296798e565b153e6e878cb84c31e9f5361c6cbb34503ee2fa06994fe49022100cc0b4a07facc0e845e3b4f63a14c051b412f5ae2071decc038eae903a71e7ddf
 . . . . [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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