www.4uinc.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:17:37:ce:76:17:e1:8a:c5:b8:aa:a4:a3:9e:ee:3d:01:2e 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.4uinc.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:17:37:ce:76:17:e1:8a:c5:b8:aa:a4:a3:9e:ee:3d:01:2e
Serial Number (int): 269237531782599736008441294566472531378478
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: cd:c8:95:ab:fc:74:53:35:cf:cd:75:f0:73:8c:a7:f8:ef:30:f4:65
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 19:51:ed:f9:2d:d4:54:15:2b:33:73:e3:e1:b2:70:2b:bc:b9:e4:06
Fingerprint (sha256): f0:74:da:ea:0a:07:c2:d9:87:0d:11:98:3a:d2:83:2f:0f:0a:21:39:8b:9b:92:3c:30:af:2d:4b:98:aa:21: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 www.4uinc.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.4uinc.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.4uinc.com

Other certificates including the domain name 4uinc.com

(limited to 100 certificates)

Certificate

The complete raw certificate details for www.4uinc.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 269237531782599736008441294566472531378478
 . . . . . . . . [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 2019-02-28 05:59:56 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-05-29 05:59:56 +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.4uinc.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 914957861488781077191538320744116656156406323618923702425806497859504661862866491279182512118767250551731862852220257181156455564246367668778939602665003868378063074089278332637818984925382045927046041288182812146921963018436417896588975858933082742828398486582578538937711544508236916205863406915966588081026253947587341986649416630810263893030866630170527077110356831920557730087618712816114665671029905800473397355317876888417170012884761304890936596834977237930125330260080055902606766530324023975490801664646659673518509936388590066450756479242969081629491500922050352039721415566204889261627159102061889231633279366236665903719656668138706061952706328848105471317204894527556717443653737767794676120340283100739579924458910992586087751213310212558827711379958332111044641298657552363086003888620516412987699057034469139995411797354678265558010711112604323704805442874381456513370827544679801436114686760940747732986072515283565160243880473165941734730077989074582098713715540383835817235552958693735073971779495849752542872840722849028226956345749411360913628780216399822878389017916223237480085468662004961409363657731829601187253588920894206129505404920777127752720291319546448310427171938935632700884571922065448731039743369
 . . . . . . . . . . . . . . . . . . . . [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)
							cdc895abfc745335cfcd75f0738ca7f8ef30f465
 . . . . . . . . . . . . . . . . [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 (17 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.4uinc.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)
							00f0007600e2694bae26e8e94009e8861bb63b83d43ee7fe7488fba48f2893019dddf1dbfe0000016932e70d3e0000040300473045022065cf8375a9c965c59edb51e4012b49c38f81f22a100cbc7e8c6caa7e0aa69549022100dbc151c772571f6545e0ab78d5c5791588a9c1919391f5c2315b7c750a18a11c00760063f2dbcde83bcc2ccf0b728427576b33a48d61778fbd75a638b1c768544bd88d0000016932e70b7800000403004730450220360ce5c073341afbd0ce397bdb3faba41a216b74f31ee7376a6ff5c531757ac0022100fd95f93a95f3aeecf839d9174eba7d4efa0c0b6e8c9b996fd215ba0cc3ab9efd
 . . . . [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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