flex-sys.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 04:9c:c5:a8:dd:b3:31:61:33:d0:39:16:2a:5f:54:8b:27:0a 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=flex-sys.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 04:9c:c5:a8:dd:b3:31:61:33:d0:39:16:2a:5f:54:8b:27:0a
Serial Number (int): 401795927684358894937825635448311459292938
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: e9:02:70:d6:93:9c:25:dc:a9:b2:0d:a1:95:f3:ad:53:4b:e2:51:f3
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): a5:8d:2b:c2:d4:45:fe:5c:93:d0:b6:b6:fd:ff:73:8d:57:f5:96:17
Fingerprint (sha256): f6:04:5e:3f:f6:a9:91:12:09:fc:0c:a4:08:ba:5c:f4:96:63:e3:08:56:29:39:65:1c:b0:ea:39:52:c4:a6:47

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 flex-sys.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for flex-sys.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

flex-sys.com

Other certificates including the domain name flex-sys.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for flex-sys.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 401795927684358894937825635448311459292938
 . . . . . . . . [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 2020-02-17 07:18:11 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-17 07:18:11 +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 'flex-sys.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 828801579463254080613991979718005943971933753162451523502048687523902408363222129442355114501197429436746489288846780737590280525005527368029867840190129004869800497828075296556386031737198922347004787575097769345600524263167595990548243218292625382347478817080603487952693930175533520101783860806073185803878899014326328685169264316006419170747612286769291026568997112465233730480200452058423242763924983101128910792215873317966164037001480743932598252177518191506093106961291556468623883419757297810686799384029654439672320052200304435104513674725221144721244603703802617004424875447243075970854790611641483951678752560709715313518305993366881201884200657454218093128135217226930908430617545042613774332538366702062152138857189243509693020344521609133004222549817901647911967536001331628422369240761746781074373665669569901325016516169354580963039908705432970230829058847738903688613212411920421355362564156156436316530971106267188283600223986733673507133210870591245467045954008765798708461994040171582867030313624975043384265304850783763814820110255633947198105816621502304794257896726635288407918210868187939698507002026374631264492467612899410559608774750787440429398157021521462006535339836997743633935912501593334673190646137
 . . . . . . . . . . . . . . . . . . . . [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)
							e90270d6939c25dca9b20da195f3ad534be251f3
 . . . . . . . . . . . . . . . . [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 (16 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'flex-sys.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)
							00f1007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001705239e9080000040300483046022100c57a2c0ef47fa49a73bb713edb50d2b0dbb71685729669f19f85299c8cbde251022100960d2ab1f62cb6905f7c37e1b2c2519be31d63bfcbd66ba99a2a7b0988c4d0f50076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d913000001705239e9330000040300473045022100ededba66055a8e5db51fffd5301e95f956b56506ff4b26b90281276c2f163df902204a8993b9ba4375eab8a0368f754671382f7008e3b0a1311afe6576588ca8f32c
 . . . . [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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