leonardocomputing.com

Issued by R3

About this certificate

This digital certificate with serial number 03:a2:15:73:ef:c8:90:bd:67:23:31:79:6e:41:e6:0e:a7:fb was issued on by Let's Encrypt.

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. This certificate is currently not expired, we haven't checked the revocation status of this certificate but you can do this simply on revocationcheck.com. 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=leonardocomputing.com

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 03:a2:15:73:ef:c8:90:bd:67:23:31:79:6e:41:e6:0e:a7:fb
Serial Number (int): 316491117001909308350495874343763062990843
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 02:d5:7a:0f:e8:f9:36:f3:31:c8:c3:a1:18:a2:42:f7:fb:34:ed:b3
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 21:02:43:de:c4:da:19:53:55:5e:5b:cb:b0:c8:12:42:5f:fb:c6:5f
Fingerprint (sha256): 65:f9:23:14:3a:0f:cd:b5:51:3b:47:07:70:a3:9c:18:09:6e:ca:e1:54:72:ca:84:d3:2b:a6:11:25:00:be:3e

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

Revocation information

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

Check the revocation status for certificate leonardocomputing.com

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for leonardocomputing.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

leonardocomputing.com
www.leonardocomputing.com

Other certificates including the domain name leonardocomputing.com

(limited to 100 certificates)
leonardocomputing.com
leonardocomputing.com
leonardocomputing.com
supporto.leonardocomputing.com

Certificate

The complete raw certificate details for leonardocomputing.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 316491117001909308350495874343763062990843
 . . . . . . . . [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 2024-04-20 23:32:57 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-19 23:32:56 +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 'leonardocomputing.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 742915250365650682006818161123922963571540730855778662056138352210223096881174349357277650972136361890505640425238961717965956481718500832773435647217018338503503063823441629477946632267116376900442083117576318888141274995153415394715125401379071967262185625032872498077987396342942717224299797664598443826072640635833377767520340763696624595789687679190371795897918414657559506789780683518324994131766199565752072570868773962103116524224414721158660256544163172195571351569898418271111575249103045191262012107456743987832387689145042778840983203792669968941472217598825444201333327348843014383006303099482913289856533357865988382694548986909374253545697710694190284866056965391957867139521048164652450239172984790072258709787737778866391494442839592402847780913069810920293347479908586734573563025601866030428129713397442092797981484478216783003438597231576633292573636087981385471910015570957769360242406906592745026611773135461835377196851326568092405383708870708311015700043397463490252608473337292585187040246272703603435911664307037879693941652201386779819957021707021890736283574018841396154614453259197438126603526540069768599750764287493787482055935700112540580813331621841687533167636363791207692619242430550488992294358211
 . . . . . . . . . . . . . . . . . . . . [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)
							02d57a0fe8f936f331c8c3a118a242f7fb34edb3
 . . . . . . . . . . . . . . . . [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 (52 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'leonardocomputing.com'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.leonardocomputing.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)
							00f000760048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018efe120356000004030047304502204e767be44dadfdd6f36da582f05584280c56d58ea5e551e3a8a63e970b82e41d022100a553046343a5d199b42cdc1ea069ad6e78c2c7787156b71eb45a0bc0239f640f007600dfe156ebaa05afb59c0f86718da8c0324eae56d96ea7f5a56a01d1c13bbe525c0000018efe12041a00000403004730450221008358dbd941385f7443952447c81e206bf2973e586d672f36a788d0e5cd162c21022070956b0f20002a8ac9037e6d39317be5e08f59b2588fe0cbfc3ebe60b737a195
 . . . . [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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