www.flex-sys.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:ab:6d:79:3d:ff:1a:4e:10:7b:64:0c:ff:4c:05:9e:83:43 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:ab:6d:79:3d:ff:1a:4e:10:7b:64:0c:ff:4c:05:9e:83:43
Serial Number (int): 319670657915659963984590933062841339380547
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: db:fe:bf:71:b0:82:6c:fc:6b:02:6d:1a:7d:79:a6:8a:e3:73:bd:a0
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): fc:b7:7d:89:3c:75:31:5b:a0:b1:f9:0b:74:97:ed:55:70:ee:31:de
Fingerprint (sha256): 54:f1:7b:8e:7c:7f:a4:d3:a5:5e:24:79:83:f3:02:95:c3:39:ea:aa:1e:33:1f:fb:49:ec:c3:36:0a:aa:79:55

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 319670657915659963984590933062841339380547
 . . . . . . . . [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 2019-10-13 08:18:25 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-11 08:18:25 +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 646226413287247427140337734337324999190571242969718425970053029762253979479356500184952654400752219280505484134200131716789190881534587425908394521989465396356878168936534678687957798722173014140290596516531223761856667935980426094518828204761099536211390184655211206777933442193683850181185250831828831040148027754733657796731306130682445838547739955193109727916915748252888186786744377853351120939133239686546370523283269390344027325253745026486732751158742895950965704592221772933901992737065872123046562366117627744579581347237660068041544887454279077072725235258285272193654777528434746444432815916084567742320499254153605945460773280140204626977937771062248421753993641708521719443092943771222927930905522376725679649432077396197724921739626424244085924920138944343813343453270314245714787353274937319202975598064657023573846819833125411272896312254654545105233409303470822513812936527600278482017711489292263102137925723936059934619329497952864660941359873827130286445626208787849893986920425881600444880101600493744757570714260467278884630920849857513323220447256604444498247708747167833064822286500935121215164468159686921273625065587007123211129319801781029596448604237434785454077689711579848375532961502527433970108094221
 . . . . . . . . . . . . . . . . . . . . [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)
							dbfebf71b0826cfc6b026d1a7d79a68ae373bda0
 . . . . . . . . . . . . . . . . [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 (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f0007600f095a459f200d18240102d2f93888ead4bfe1d47e399e1d034a6b0a8aa8eb2730000016dc46968fe00000403004730450221008abe4b2cb82bdd7cda185b5dc095f0472ce771a6ea41e2e73c3735c8ced2e18b0220407128d72ab7676e99d8c49f6a6d150154b34a33bc40e41b90cc121ebf466283007600b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e0000016dc46969120000040300473045022061fcf0f18478e7bc6f95903649e4d7fd308b2db33c8bf278f345ecb50034a86d022100a885236aa565fd5eff5d713a0b6a90ea2be86416026936d745d953717dea3e36
 . . . . [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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