www.flex-sys.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:72:7f:bb:35:78:4f:bb:15:b4:83:b9:68:79:1d:5a:f3:78 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): 03:72:7f:bb:35:78:4f:bb:15:b4:83:b9:68:79:1d:5a:f3:78
Serial Number (int): 300298831623744719085975731436892572021624
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: bd:10:b1:59:76:45:73:b5:f9:9d:6c:55:ee:0c:75:e5:6a:d1:e8:73
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): ed:f2:04:de:cd:c5:72:ae:12:dc:b1:e3:91:e6:dd:17:34:e9:c9:48
Fingerprint (sha256): fc:f5:fc:1b:6d:60:35:f7:27:4c:9a:af:73:cc:0f:eb:2e:62:98:7f:cc:6f:d1:1c:45:e6:88:6d:62:ab:96:52

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 300298831623744719085975731436892572021624
 . . . . . . . . [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 2020-02-19 09:12:49 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-05-19 09:12:49 +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 765799085183276916193331942519884886633831311577773861850035600845492575152749131952614258964802085924990075921943347502864850039878843328637811190806334891874384361828204494833073373672276007171847033756164645092482598836922477838939788123406987215743101265712180256092488467798325957137281893161839025405345495009983363256223339833958311427265007365236842116207163902638108214295653546495356740901549785214327764075684820520617591323585864835443352688249769598342837755255988967901460972986218184537395208426898906916330602397557615890828531268614742824772155150326523254960870594998872399631118919595951485545854507136327933458361062241909066905451681760615194474301428094549843807892116498864236185783184116959683492760770027701129476006223239930493078696071156773551673420637622808419533028861034731962809195456510976092321703965174114811469489167619703471948961821270879209453697016102043094840662631937379663433378060355017224248381749900744678899376233053830784958623133261007949008009680290430198320399506002478615767416616734087600903381133533990977374301622718874258760286537579958683826624921292917597416671343938146449697363395734951221077636245604041485863674971464490295293279915264935864406651860938778357938574986219
 . . . . . . . . . . . . . . . . . . . . [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)
							bd10b159764573b5f99d6c55ee0c75e56ad1e873
 . . . . . . . . . . . . . . . . [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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a112128418759681714558000001705cef930d0000040300473045022039d350f7c9197355478e3f731b32c303d7c310f22bac186960f0d29370c7c1f9022100b40aa463d2b693693063a8814f463f6dc182de73ead10cac19afddff34de4818007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001705cef931e0000040300483046022100b115c54365412de0cadeb1401978df12f5429dfa1a96878194af551a045b6b15022100fda7fef09dfe3ee2d460db4ed1e5e4cd44d431c37f441f53a6d224ab433291b8
 . . . . [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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