flex-sys.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:41:ec:f8:5a:45:48:c4:27:81:76:01:18:bf:26:8c:37:dd 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): 03:41:ec:f8:5a:45:48:c4:27:81:76:01:18:bf:26:8c:37:dd
Serial Number (int): 283770198972674024447111006703657715251165
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 16:a1:be:60:a7:7b:90:ec:cf:1d:5f:aa:d9:a2:e2:e3:93:e6:f3:3c
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 3d:dc:ec:98:46:81:de:79:75:07:70:80:ef:63:2c:4d:4a:7b:40:e8
Fingerprint (sha256): db:37:f2:ad:ab:fc:f5:c7:19:f3:11:1b:3c:ec:92:3e:6f:21:bf:b7:a4:d9:28:82:a2:6c:e0:5a:ef:46:7c:cf

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 283770198972674024447111006703657715251165
 . . . . . . . . [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 2019-12-18 14:00:18 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-03-17 14:00:18 +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 843683226064453653528001053933387346618157109147268815108747059043800287530897055005331772814237639611625980528940912884867971846979648305535602473930522005797595428576074671746110176945939378735852003174784099319221185267774841622023183757674532393896700910374366115098104474947447763994569832125844895624368651622674109850713303927889935047978928894703284425551650302267917555727033624643277621498269495052669950297240375206696916888128053481953525027058245847468554885427213377582220960075016270555890712188853862126843906056113860820484894452880750735544079065818186404204427973265829372970219854080724026841111408758037636463030789605254615219737570467357335419111481451537990932129768886572441890503797525290005241063161238613820105761954268900805315692686248965492101210798000376780631785956590326127952940196078320835064973797352880213285894062459586433286725109218917702055758920863295068453541733026651162048518682693343328395984754637878633007020118290047626390631483550765893706498416023173524227432022939635977769292968342805828616636712067603754151933277355220426566536741811028955892644493798754196621995951224225483409502350251151601329574816505354229091228006898648809231327626993392082335034724599045852741240775331
 . . . . . . . . . . . . . . . . . . . . [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)
							16a1be60a77b90eccf1d5faad9a2e2e393e6f33c
 . . . . . . . . . . . . . . . . [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)
							00f1007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016f198620610000040300473045022100eee6f8d54f693b4ab8b8cdfe53b3c74c8421230ad45b27c53d717c17c72a27f5022024b37499650afd4655879058cdf847ede1f5cdd297753ed833931713a36a16f6007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016f198620760000040300483046022100c888b4a102370699952192d683a2f83ebfafc6aaf0496be55ea1829386e1b0db022100ca9a1e8daf7104bd45d720d81766851d3a2e1810aa37fe7c0da7d38b9341d098
 . . . . [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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