mail.showdigi.com

Issued by R3

About this certificate

This digital certificate with serial number 03:fa:8e:40:eb:e9:16:e8:b7:1a:d9:40:c1:45:79:5c:1e:b1 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:
  • DV certificate contains a subject common name, this is not recommended. If certificate policy 2.23.140.1.2.1 (CA/B BR domain validated) is included, only country and/or common name is allowed in SubjectDN. (BRs: 7.1.2.7.2)
  • Subscriber certificates use of Subject Key Identifier is NOT RECOMMENDED (BRs v2: 7.1.2.7.6)
  • Subscriber Certificate: commonName is NOT RECOMMENDED. (BRs: 7.1.2.7.1)

Certificate Subject

CN=mail.showdigi.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:fa:8e:40:eb:e9:16:e8:b7:1a:d9:40:c1:45:79:5c:1e:b1
Serial Number (int): 346596536992749268818296613828115583213233
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: c6:2c:a0:d0:2c:ed:b7:3d:9b:e6:fc:f3:c7:79:c1:8a:1c:53:9a:be
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): cf:30:4b:83:ed:b9:ae:eb:9a:e6:4e:a5:c5:78:7f:f1:92:26:ec:2f
Fingerprint (sha256): cf:a6:b8:9c:ca:a6:64:7d:7a:6e:a8:bb:ff:67:b5:4c:10:83:3c:e5:49:f3:2c:4b:30:c2:9c:ab:ea:42:59:d2

Issuing Certificate URL: http://r3.i.lencr.org/

Revocation information

OCSP Server: http://r3.o.lencr.org

Check the revocation status for certificate mail.showdigi.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for mail.showdigi.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

mail.showdigi.com
showdigi.com

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Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyLWrgN0mLxwQYfTN8u2a
iyXyy19AE+j4mNM7HkS5+XCc3MWkdVevXiPKnSm0ZBw4tDKprLeiVLFEoGqx1Ewi
j+wuB2O2tCO1vGO/RFDlESglQde077m3paxE8ZmaZ/kTWJIvBkJBTM9YSmRdtamJ
i0hGndSWDPgdjalgImX6vZONlb7VzDQyhcE48CqKdnChcJtLJmLK1fmJg4Zg4nN7
sBnKiPZmjfh4XpJl9x2U8kFo73SyUFUIybrEO2623SYA/vmtDUOFFX5LVVzZ+C7t
fr0X5HPEzf9Y0seXNTcikFNBF9bY/SMbF5FpbpGGctlypuLAU6NBQyCYSViOyKX2
3QIDAQAB
-----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 346596536992749268818296613828115583213233
 . . . . . . . . [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 'R3'
 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-25 05:59:37 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-24 05:59:36 +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 'mail.showdigi.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 25337245777058711350170184228177704256887056938963486920036927604621277463567180014237171192138913392991555996246241245158236608394997956623029385459044560213669429731189865045385521843234353818579761630568623982575809438116890135372204597681489324052011502074854356061366888006247534484555856312955638398618322456783663690764730767680435382578093517205438353788321957378561736189225328230870736687982762930307616568261976296751832331612641803774521772198794561108957986514287369216776627295598264774158515511322562653958421915016060447113630372761334330963270463528106973438283906662486844219342539879768932537988829
 . . . . . . . . . . . . . . . . . . . . [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)
							c62ca0d02cedb73d9be6fcf3c779c18a1c539abe
 . . . . . . . . . . . . . . . . [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 142eb317b75856cbae500940e61faf9d8b14c2c6
 . . . . . . . . . . . . . . . . [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 (73 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://r3.o.lencr.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://r3.i.lencr.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 (35 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.showdigi.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'showdigi.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 (12 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 1.3.6.1.4.1.11129.2.4.2
 . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (245 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (242 bytes)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018c9fc59e170000040300473045022100930c49a87efe31b0bd0e17c0c90d7fe1df5439ad6bf9a758994392194d637a320220394f2abafe01f6c7189ecf5a4c808d1bdb360be95959d0d7d7f7b0f5a3beb75c007600a2e2bfd61ede2f2f07a0d64e6d37a7dc6543b0c6b52ea2dab78af89a6df517d80000018c9fc59e200000040300473045022100c978930a3a4b5eac7187c73f9b8bd3539db1b31ccaeb2b6aa5dcc247c8efd68b02202420b1e7b749e0b62d0ad06711928ef8d6037f05fe3f4226f4862401dc9a4d5f
 . . . . [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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