www.diventuremarketing.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:8d:93:99:74:b7:c6:06:6f:bd:30:9a:4b:f3:a5:0e:3d:3b was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. 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.diventuremarketing.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:8d:93:99:74:b7:c6:06:6f:bd:30:9a:4b:f3:a5:0e:3d:3b
Serial Number (int): 309512864835252355327027846351790908783931
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c9:25:cf:21:98:2e:c2:ee:ab:9c:f4:a7:18:f2:8d:ff:f8:e7:59:bc
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 86:d9:26:43:7a:29:27:a9:c1:8e:83:2a:9f:77:d9:0a:51:fd:24:69
Fingerprint (sha256): 92:02:58:46:06:0a:96:05:7e:1a:9b:5c:2b:b8:fc:af:11:89:37:dd:68:a7:9f:fa:39:02:b9:b1:4c:da:04:f4

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.diventuremarketing.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.diventuremarketing.com

Public Key Algorithm

RSA

Key Size

3072

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

diventuremarketing.com
www.diventuremarketing.com

Other certificates including the domain name diventuremarketing.com

(limited to 100 certificates)
www.diventuremarketing.com
books.ronu.mx
www.diventuremarketing.com
book.diventuremarketing.com
www.diventuremarketing.com
connect.schoolmerch.shop
www.diventuremarketing.com
www.diventuremarketing.com
billing.diventuremarketing.com
booking.pdm-automotive.com
booking.commandersact.com
www.diventuremarketing.com
www.diventuremarketing.com
www.diventuremarketing.com
www.diventuremarketing.com
www.diventuremarketing.com
www.diventuremarketing.com
www.diventuremarketing.com
billing.diventuremarketing.com
www.diventuremarketing.com
www.diventuremarketing.com
booknow.deliverymates.com
connect.schoolmerch.shop
www.diventuremarketing.com
www.diventuremarketing.com

Certificate

The complete raw certificate details for www.diventuremarketing.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 309512864835252355327027846351790908783931
 . . . . . . . . [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 2019-07-03 19:21:20 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2019-10-01 19:21:20 +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.diventuremarketing.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 (3184 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 5124556608572405336436951590408069363225521503199212926639155439002633798538771466708643429480543462844704404894495871163906183885921036326348467300443099174057610393278280882048801571175999365792164936694406699320351062897031739325962280329503892725403210962265357532725109079656759965570619965907542793005578177643781753438381134410434933482370631452843576402794685637786639692075014120598084788575071109285318054639755796497666076902362961072069859306969997031799555138813302369577650432002561312597375228754847625734298720832825496787529065674175898549306932230736725280489303196016602694323951597337594203353159187722664044831360615244949606828227976337739348475611172826137622754814971134274087381689541937316170944438362545648671243023711426303666723977412497089224976784358900470856180168249700106796089665353959927268148581208797636759934199972258996950207091754346203937395542342796394187827561374003857608082102079
 . . . . . . . . . . . . . . . . . . . . [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)
							c925cf21982ec2eeab9cf4a718f28dfff8e759bc
 . . . . . . . . . . . . . . . . [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 (54 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'diventuremarketing.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.diventuremarketing.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)
							00f10076006f5376ac31f03119d89900a45115ff77151c11d902c10029068db2089a37d9130000016bb97fac720000040300473045022052521aa00ed340e89592c3820fdb4f861803e09388d51e74b9c25981be5b9ce10221009e8194733af100cd5f6c9db767393417aec77668752f0ed9c529f20e0d75503a007700293c519654c83965baaa50fc5807d4b76fbf587a2972dca4c30cf4e54547f4780000016bb97fac6d0000040300483046022100d52424cb034e88f46c6bf91ab3ea6e3d04a2d0a07ba83114cd6abb6fc8400352022100bb6a99e65588f70d0a88404c4f9f33cf45a50d2905573da6d11bb2aefc4efe75
 . . . . [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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