www.knowledgemarketing.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:3a:d8:73:9c:3d:e6:cf:31:2e:38:8c:4a:06:30:cd:5a:cb 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.knowledgemarketing.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:3a:d8:73:9c:3d:e6:cf:31:2e:38:8c:4a:06:30:cd:5a:cb
Serial Number (int): 281360948606883692269654791994918770137803
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 0f:99:b7:eb:52:f8:8a:be:fa:38:e8:92:0c:1f:89:66:52:55:73:db
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 54:6d:ae:85:20:b6:7e:5c:46:a0:78:7e:74:5b:bb:97:34:da:13:d8
Fingerprint (sha256): 13:71:f0:e2:c1:8e:94:88:d1:0a:d7:d1:44:a4:2a:d1:02:f6:12:23:31:e7:fc:0e:ce:c8:c6:03:f8:f7:ab:f2

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.knowledgemarketing.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for www.knowledgemarketing.com

Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA256 with RSA

Key Usage

Digital Signature
Key Encipherment

Extended Key Usages

Server Authentication
Client Authentication

Extensions

8 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

knowledgemarketing.com
www.knowledgemarketing.com

Other certificates including the domain name knowledgemarketing.com

(limited to 100 certificates)
status.accept360.com
support.crossover.com
www.knowledgemarketing.com
*.knowledgemarketing.com
supportsurvey.cardinal-mark.com
knowledgemarketing.com
www.knowledgemarketing.com
supportsurvey.cardinal-mark.com
supportsurvey.cardinal-mark.com
supportsurvey.knowledgemarketing.com
*.knowledgemarketing.com
www.knowledgemarketing.com
supportsurvey.cardinal-mark.com
supportsurvey.cardinal-mark.com
supportsurvey.cardinal-mark.com
*.knowledgemarketing.com
supportsurvey.cardinal-mark.com
mail.knowledgemarketing.com
support.cardinal-mark.com
*.knowledgemarketing.com
support.cardinal-mark.com
support.crossover.com
www.knowledgemarketing.com
supportsurvey.cardinal-mark.com
ecn.knowledgemarketing.com
status.accept360.com
supportsurvey.cardinal-mark.com
*.knowledgemarketing.com
*.knowledgemarketing.com
*.knowledgemarketing.com
knowledgemarketing.com
mail2010.knowledgemarketing.com
mail.knowledgemarketing.com
www.knowledgemarketing.com
supportsurvey.cardinal-mark.com
supportsurvey.knowledgemarketing.com
mail.knowledgemarketing.com
supportsurvey.cardinal-mark.com

Certificate

The complete raw certificate details for www.knowledgemarketing.com in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0F+L7lAa8vXV4vpiCp+2
Q/IAuF5S88J9r7UUgq5E35WOrWGjXUJ5BA8UNt8e20yvyZJPpFgpwzwcvl/NUO6R
Y3CbeFyXEiRWYRd51mvptMr5HNjf7FOg3hWsijZ0jET6cwHm2uiXXwUykpoWxkCX
P6qvbjkEJyVew/YGPQfdoFxmP8nBktwdiRsrrF+t90sOb8GEdmdc7FzV+YIWD8mZ
ye/dxubNB4ev9ymyGPCaXSj+KugW5M1sFNhDmbsnA5EyReYtamUE2UN/RdWS4ElQ
+VM/WgFq6WzUqPfsGYGFjyLKxG2nRLDiGnWj37e2HAndi9VXAH7ifaXUBamk966J
awIDAQAB
-----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 281360948606883692269654791994918770137803
 . . . . . . . . [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 2018-02-10 23:35:01 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2018-05-11 23:35:01 +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.knowledgemarketing.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 (2160 bits)
 . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . [c:0|t:2|false] INTEGER 26304683219952541524303810631734009555831087415879374315831261892258852079174457741036713448896672666113413591975208736201947917312195162101238004096996428621004725299913219599046006067595729118000359084548522293979159930656738882544662238900633396808536989022358906893262040928965182092406375260324736692422183383457077637304259976979175852111427155853427688523214397577827416421662768223170891539202682161707395283373062463070227753906433515183690185862765789281462958904082830191776230053970110643136693186353024605209587797462775029010946126900733003339894477266184160428798399389075961664554902717245185307085163
 . . . . . . . . . . . . . . . . . . . . [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)
							0f99b7eb52f88abefa38e8920c1f8966525573db
 . . . . . . . . . . . . . . . . [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 'knowledgemarketing.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.knowledgemarketing.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 (246 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 1.3.6.1.5.5.7.2.2 (unotice)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:12|false] UTF8String 'This Certificate may only be relied upon by Relying Parties and only in accordance with the Certificate Policy found at https://letsencrypt.org/repository/'
 . . . . [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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