www.flex-sys.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:91:40:50:d2:3d:8d:8a:05:a5:5b:b7:23:eb:af:7c:15:32 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.flex-sys.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:91:40:50:d2:3d:8d:8a:05:a5:5b:b7:23:eb:af:7c:15:32
Serial Number (int): 310763291238478473469168126749397571343666
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: b8:35:26:78:6a:79:9c:c4:15:97:63:27:74:24:c2:8e:93:1f:c4:14
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 0e:03:7c:a1:d9:1e:1a:8f:7f:36:2d:66:f2:3a:cf:cc:d8:ba:70:bc
Fingerprint (sha256): 44:1e:d3:f3:b6:cb:9c:a9:e7:8a:5e:9c:61:c6:b5:e3:0c:ee:93:c9:4d:d0:13:68:9f:80:bf:f1:4e:9b:96:7d

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.flex-sys.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.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

www.flex-sys.com

Other certificates including the domain name flex-sys.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.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 310763291238478473469168126749397571343666
 . . . . . . . . [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 2019-12-17 12:20:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-16 12:20:25 +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.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 861758605308070403063087121814487396170815601015020945552340496562100080271580801841594928874890371222108787720845304693591821970562121771892493791033909365396959307218049883952160709346697265647791067930419269244999032973434328066667133858517097466361763889630717155560087727704300566552367288242412078249499258606562550606743011763885399760153715103848415204575603543456751629068513343348683368017598990202931450772196877635358203725080385199754303088388294643820647136420717706807281418363052408361140159009692671490083078688733777735631975167325664059990988912863595988796264876992303573819384584067917061605437486033788412712456154796839810250039918997707010434319649542604475441616131336837824711427015160518041026904850720685466866929428835123904628237549102095653974799957327414091610198325000740835271141834786117776141701815819823614305691154207103081292739798745635700728095272636198402867796775427122061075106333648380222295665332620397226986601203701061435345503027338838408025044046744615176945001555255141091427808665587345597841471234121025924763429838070359266205103120732956865751376219228683376735179017152935286984272415170888515734818819971136852310176053645948008864233202602101847893374689254237847129447380843
 . . . . . . . . . . . . . . . . . . . . [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)
							b83526786a799cc4159763277424c28e931fc414
 . . . . . . . . . . . . . . . . [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 (20 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.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 (243 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes)
							00ee007500f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f140453bb0000040300463044022018b245496991678e7dfc2e90aa9f7039cec867071a677f954d468a7303e6eefe02201eba9203eb279675b65a646d859e5e52ff29fce5b4b94c0f7265123f24bec85100750007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016f140453e8000004030046304402201c3046ce638a8f115a3b430c435113293ceb894924ab734d4eb90db11225e75002207c2548f2364107898846acf2f41fd364f28656e90bcce919d80074d015374711
 . . . . [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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