dev.acheckin.vn

Issued by R3

About this certificate

This digital certificate with serial number 03:ad:6a:43:60:94:f5:70:c8:0b:85:01:01:be:ac:a7:54:84 was issued on by Let's Encrypt.

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=dev.acheckin.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:ad:6a:43:60:94:f5:70:c8:0b:85:01:01:be:ac:a7:54:84
Serial Number (int): 320346955282958867209469724430163748803716
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: 4e:73:d4:f4:68:72:4b:01:af:0a:b3:72:9e:d4:b2:2a:12:64:2b:b9
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 5e:97:39:b2:4e:06:16:d8:c5:3d:15:15:5b:ad:a2:a1:e6:f3:55:9f
Fingerprint (sha256): 31:72:f5:7d:ea:85:b1:9e:0a:bf:34:01:5f:7a:58:23:e6:77:50:b3:05:81:cf:6c:13:24:5e:77:a9:a3:4a:24

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

Revocation information

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

Check the revocation status for certificate dev.acheckin.vn

1

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for dev.acheckin.vn

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

dev.acheckin.vn

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Certificate

The complete raw certificate details for dev.acheckin.vn in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwyaoDJDOvhMcCYklTWIj
o8iEl2gcAohESQHdQRvIc/tgGi7O0z0gzOKgiO4LP6U+UVkKCCxBw0H1e/eVY/Jg
gXoZIgf1Wg9H/SMJTVhg0eSXOw6tPZS1lSVBTHc4YnmG+ldrxvlVZOjhaHaxnhwC
PgSXOPy0ZiwQArIViUGxjrc6dG6iUqnD1zCtEF/hRGqtgJQGKAi95I/Jr6ujc0YA
ivEMCXFs4qIAkr37HTCPdX6vJ6Q8qhAiWcjfRQT2dMshcfPPoWJcVPCw1M2+KwMH
D2++y7WYTeXKGdCViPwzPO9GhTyCnVV4hG+l6oF3ENaV8xR5ZCwzlWYnT8TAN2lJ
vwIDAQAB
-----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 320346955282958867209469724430163748803716
 . . . . . . . . [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 2023-09-25 03:31:28 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-24 03:31:27 +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 'dev.acheckin.vn'
 . . . . . . . . [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 24635531670259778515997648807322123765702881326413315455219123026564423655189182913425933517041324932138504685399414978691528585861589391175083445744349107534906676465936259196700564540749641177100073640800732826739470689294644866687007543398913666943421591800940841581514306585178214443748745662321817760171329881226240742272413645260226005806534222623440632777533340691527323524001123929907226060681737736073474843131781625553869402073834174129532382168524692392859410991443391186548058877880317052789165157737732329709245343503709581566345819926307491805394194308903598903574707316629213491774004902582680424106431
 . . . . . . . . . . . . . . . . . . . . [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)
							4e73d4f468724b01af0ab3729ed4b22a12642bb9
 . . . . . . . . . . . . . . . . [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 (19 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'dev.acheckin.vn'
 . . . . . . . . . . . . . . . . [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 (244 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (241 bytes)
							00ef0076007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018aca9b49220000040300473045022100dd9454e5eeceadd612a41d03045c6cfb5f3e834057d54be0d2767b0f9fa830ad022075a6d44644de10475eefb3bc3f1f40ac62f33e4fe9168cedacf5cca36a6ff362007500e83ed0da3ef5063532e75728bc896bc903d3cbd1116beceb69e1777d6d06bd6e0000018aca9b490f0000040300463044022015ffe29b3528baa929afbb2728366d9f8f27547a7e46ff2611169c0d59f0d42f02201095fbff4f09f5ce13c2ddd6eced35d55aeeffc1cd17715488baaa78b50681b8
 . . . . [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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