thejamesshannon.com

Issued by Let's Encrypt Authority X3

About this certificate

This digital certificate with serial number 03:82:b9:df:2d:24:8f:13:f7:50:b6:12:1b:6a:66:0c:5f:c8 was issued on by Let's Encrypt.

With 9 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=thejamesshannon.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:82:b9:df:2d:24:8f:13:f7:50:b6:12:1b:6a:66:0c:5f:c8
Serial Number (int): 305820631472027329401905854707844395065288
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 3a:61:1e:d8:32:9b:75:bb:cd:35:93:eb:24:57:a2:36:0a:a8:0a:eb
AuthorityKeyId: a8:4a:6a:63:04:7d:dd:ba:e6:d1:39:b7:a6:45:65:ef:f3:a8:ec:a1

Fingerprint (sha1): 1e:cf:cf:b5:3e:34:58:dc:e9:0e:e2:23:bf:6d:42:52:33:4d:32:fe
Fingerprint (sha256): 1b:94:b4:44:42:58:df:84:6b:78:85:02:bd:45:58:6f:1e:29:57:79:d2:7b:88:24:34:ae:ae:51:d6:8e:b1:29

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 thejamesshannon.com

9

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for thejamesshannon.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

9 extensions
No unhandled critical extensions

CA Certificate

This is not a CA certificate

Subject Alternative Names

autodiscover.thejamesshannon.com
cpanel.thejamesshannon.com
mail.thejamesshannon.com
thejamesshannon.com
thejamesshannon.thetech50.com
webdisk.thejamesshannon.com
webmail.thejamesshannon.com
www.thejamesshannon.com
www.thejamesshannon.thetech50.com

Other certificates including the domain name thejamesshannon.com

(limited to 100 certificates)
thejamesshannon.com

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArlC+/H1hN61pS8mLlO9D
+kufgQcvw5swczNu6UCwqN1wSmwrbPpJNtri6GMiTd9pIayC7bvKEY7XH2UPCWRS
tZvZcDxfHhX7l8zSoXNP71B+0dmsisPhzwyXzRvqlXwcqTmPLqzXe4zZ2HaEUyMm
lE2GHo6XJKv/x0hR//SooIrjELiA4RP1wUr5sg5bMMZRyoFl25cwsJ0CEH7Bm08V
LppWnLjQjX9Jtph6Fo0hhX5LYVt2Gm7+mI9PIiEW3FNqSL5VLK3UVY35Pgpka255
uZl2k5XublGews49rE2SJJnbSiKkddAwKroJgUk1AEwwaczfN3Vlv0VsLG/ddJpK
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 305820631472027329401905854707844395065288
 . . . . . . . . [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 2020-03-27 23:14:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-06-25 23:14:15 +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 'thejamesshannon.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 22005282420524129524494211223761640831264255824496405448526926091294366590613371209849215297002535836457030522823389848686160906479443283806470118540259195701248102856973720604712903746937106332223339903599165659185653699895409085881124724283979419310243957141931291476983892685885593087079203805586110305132167815911495669562772736609755981192212165995889005082524389228136727704759952120250758671156959328559843403132484457332707955517312498224156112803744195913564579505689914926774400193367591240342069103821978347556776657399380612218863129399503077552532624767883261350366987546207066822494134124435973126900331
 . . . . . . . . . . . . . . . . . . . . [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)
							3a611ed8329b75bbcd3593eb2457a2360aa80aeb
 . . . . . . . . . . . . . . . . [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 (262 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'autodiscover.thejamesshannon.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cpanel.thejamesshannon.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.thejamesshannon.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'thejamesshannon.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'thejamesshannon.thetech50.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webdisk.thejamesshannon.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'webmail.thejamesshannon.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.thejamesshannon.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.thejamesshannon.thetech50.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)
							00f10076005ea773f9df56c0e7b536487dd049e0327a919a0c84a112128418759681714558000001711e7d3ab30000040300473045022100be86a0437c5840f8a89961cc923463c624289c3a1d61c1cb0a650442c54379fc022075972ca5da534c4598342204f294b9d344765706447babcd2962a0179f8b62f4007700b21e05cc8ba2cd8a204e8766f92bb98a2520676bdafa70e7b249532def8b905e000001711e7d3aa30000040300483046022100e126764f94f740fdd71143d32a23778269c5e30e107e2f5c6951fb810f16720402210082709e4a804f451d860f7203426950366a70ea4e04da8754faa2435549bba533
 . . . . [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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