oumco.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:54:76:61:e7:d1:ba:5e:f5:1d:db:44:d8:fd:53:d3:25:b3 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=oumco.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:54:76:61:e7:d1:ba:5e:f5:1d:db:44:d8:fd:53:d3:25:b3
Serial Number (int): 290077933874790452239479254543090417083827
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 89:6e:89:48:45:39:38:fd:84:84:47:84:87:73:9f:ff:11:ae:64:9f
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 8f:5b:d7:05:bc:0d:4d:90:ac:dc:98:44:47:77:20:e6:9c:03:b6:2e
Fingerprint (sha256): eb:aa:40:c0:25:b7:da:c6:be:db:1b:e8:8c:99:0e:18:df:46:e0:dc:c2:3e:0c:c3:b2:65:b8:3e:5e:3d:a6:68

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 oumco.com

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for oumco.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

oumco.com

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duferus.nl

Certificate

The complete raw certificate details for oumco.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 290077933874790452239479254543090417083827
 . . . . . . . . [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 2019-10-12 01:55:43 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-01-10 01:55:43 +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 'oumco.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 792988958320039414181757696957569150838589279336652879149439712888418023125866166415319519120069304890190549022530625874228224420665045773988523569808383666764287992799992637909427417062445366865684793330977270689532725525045312642531764420792032272827186508463196847715562310517822952932439309485130207783817251961042725417540470411217999317867047320757167470326616289865561880076600643842963274173423589586220259215720885679487289624602807358462236643744574845542787996154006979759261344637214819555039548654420082509784123081139633632795454544761718862909275213310026020348475854808692729385126863018926498701879776853292316404668312945772985892255596821663089259750076751619020900087474323752981262315267852484768781010525513266734646146075307304464334858134384215684578669997868967630189152087425889229950456756933027204422310508465273874796614804128605039410467642341035443342062128149531363182295037862655835620747315677399169471226431564566733467202545919996651424313066001651589212456348673472878516088269661874355586894151805728452013218515383547769553622695391122197542000226558372261028009900273376721650181353366756807585578417080735387251226531328648263349673581113840333961196239665434217982000494379538179236880049191
 . . . . . . . . . . . . . . . . . . . . [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)
							896e8948453938fd8484478487739fff11ae649f
 . . . . . . . . . . . . . . . . [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 (13 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'oumco.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)
							00f10077005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016dbde4ac650000040300483046022100af351126c290317fe634b55ff5610fc89d97e7c949cd8d2aa46524d544ce7f0a022100ce812e3ced864965f409a8ef577037a94982e4c8ecdf94402a7e1107631fed01007600293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016dbde4ac550000040300473045022100b1ab58bd09743198b7c88946354c66abe4a8fae81f1c54f1d2315196c3fad45902202622be809f8555e2485ec0e241f7535333ef59fce5c3466bf4be6ed8c9c05e07
 . . . . [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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