a-sistem.net

Issued by R3

About this certificate

This digital certificate with serial number 03:a8:a8:d7:24:68:2c:a7:75:fe:03:d1:d1:e7:4c:bd:20:60 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=a-sistem.net

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:a8:a8:d7:24:68:2c:a7:75:fe:03:d1:d1:e7:4c:bd:20:60
Serial Number (int): 318728722823535147077496874119212927098976
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 8c:13:4c:d5:1b:40:ad:47:0c:a5:1e:37:dc:b8:9f:54:d1:98:b9:01
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 12:4b:d0:be:65:f3:f5:1d:f0:e0:c4:dc:49:ba:c5:4c:83:54:d3:3f
Fingerprint (sha256): 0f:cf:a2:4b:23:f6:2f:58:3e:a7:f2:0d:ef:97:12:de:8c:62:48:10:d4:1c:7a:5b:60:36:88:8d:67:fd:ad:5f

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

Revocation information

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

Check the revocation status for certificate a-sistem.net

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for a-sistem.net

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

*.a-sistem.net
a-sistem.net

Other certificates including the domain name a-sistem.net

(limited to 100 certificates)
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a-sistem.net

Certificate

The complete raw certificate details for a-sistem.net in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArfUjeTKiDkFI8UK9QDBo
O9Oyf8ZlKbbv45YUustPGqCIhDU0A710S/M49uH3M4p6bJBDl3+AwjyiVO539esN
EO5nf9l1pGPuiQHlV+F2Nu0Brk9bj0nR9+Y3887JW1Lj1Qz94VvirAWXSAAS//wo
R2Ma9DN1uLi59ZctVKh83r0mwS9HHM8UZXMJEDga9mwLE3SL0T1jY9hXOaZlbXli
myhvUzdHbSwVlyKxdrntDz1RxB9jErpbFwaCTZC/TzV30QmvcUcIQTmJBnysPbPv
zboyYCFT8iPVqT0VVTXJRHIzUdnfBpZo6kShJj6RBejair43Tn8sEi183jwU4o5Q
mwIDAQAB
-----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 318728722823535147077496874119212927098976
 . . . . . . . . [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 2023-12-31 10:48:13 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-03-30 10:48:12 +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 'a-sistem.net'
 . . . . . . . . [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 21960109092395359576394255983826431147637252535834338108892134323414281344137275498662551530223597645656191887694571263963724750995320929032712316564104563317789790468388156667077296532962796680029064567865374883342312705239658984255022363397687119042899469371871006998404456154440145032878760741713078802491551936049318420417822633409612888554474827124229751839992033502371420147577023350311273446446030447793207954537273187599677946321585332145237518368959170705740857258199493869788420136245569147604467400442976758927779616568653809159887129930508627234236447398660688055227737374871442367519115780413820878344347
 . . . . . . . . . . . . . . . . . . . . [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)
							8c134cd51b40ad470ca51e37dcb89f54d198b901
 . . . . . . . . . . . . . . . . [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 (32 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String '*.a-sistem.net'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'a-sistem.net'
 . . . . . . . . . . . . . . . . [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)
							00f00076003b5377753e2db9804e8b305b06fe403b67d84fc3f4c7bd000d2d726fe1fad4170000018cbfb3fd330000040300473045022100b6de3d2507607438ea1db5c97cb1167cf915f23aaafc1a82587d7450bb70b3c8022067d6d682ebb462143f01dd790409673963a8a0d9145967bfc1b4c14f10b2e09900760029d03a1bb674aa711cd3035b6557c14f8aa78b4fe8389449eca453f944bd24680000018cbfb3fe2c0000040300473045022100e167534a9b64109a11a8a8107eba213541c698783cf13ac073182373a232d73802200ff71f23bbac66d700feb29b2b07142300f19e2a66efb6b609fe1ec7f44436c9
 . . . . [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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