cssgroup.vn

Issued by R3

About this certificate

This digital certificate with serial number 04:42:07:32:a7:75:86:32:5d:28:a9:4a:64:8d:b0:92:28:25 was issued on by Let's Encrypt.

With 4 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=cssgroup.vn

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate will expire on

Certificate Details

Serial Number (hex): 04:42:07:32:a7:75:86:32:5d:28:a9:4a:64:8d:b0:92:28:25
Serial Number (int): 370917347551109977029105155886095025711141
Serial Number lenght: 139 bits, 18 octets

SubjectKeyId: 41:12:44:7b:eb:6b:5b:75:fc:2d:da:9b:aa:54:ce:51:a5:9e:ba:a6
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): d3:9a:75:e5:5a:19:53:53:fd:46:18:fe:34:e5:55:b5:86:8a:f2:10
Fingerprint (sha256): 2d:ac:fc:1a:2a:7a:97:6e:07:4f:ca:a6:1f:fc:42:98:a6:6f:95:14:c4:6b:a2:46:26:5d:e6:95:9c:ee:da:ad

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

Revocation information

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

Check the revocation status for certificate cssgroup.vn

4

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for cssgroup.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

cssgroup.duy6.name.vn
cssgroup.vn
www.cssgroup.duy6.name.vn
www.cssgroup.vn

Other certificates including the domain name cssgroup.vn

(limited to 100 certificates)
cssgroup.vn
cssgroup.duy6.name.vn
cssgroup.vn
cssgroup.vn

Certificate

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

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxeENwNmUdKJ7Sm8rGJ8c
mb680Q4XxEMMlajBvFYPc+J5m15OVE+FMHcUtu8xdtIMOfbMHpMnjYRPVdW8yTBZ
Dipgr4ZGgCqlxWMubURYlEpGoDSkgExXlcebqxpXcjawe/YmY3X1RwcU87aXxOSY
YGEr2FYzNj8RsTkskGUjctteFJC8Ya+3PPy5B1ju/PvXCFxcMldPQTbC9dN/Xy43
l4UHzZiSBV/v0SfmBTKqGNNzn6jz/5muRYS/KY4uzgW9viVFRN/dScLXmDgsd/ot
Qg52UGWslG5aLzf/n078AaluV4oUFOaoYdery9GkVhbkCrYv2v6FXZ5q99nFYYux
GQIDAQAB
-----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 370917347551109977029105155886095025711141
 . . . . . . . . [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 2024-05-31 03:01:15 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-08-29 03:01:14 +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 'cssgroup.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 24979924205783186243586626981867052953746239669500064506348724332960949585799501085329420808759015762179410738230025913958757410786483578854764066276646771990207632434686794393425911803418564568875945738538069870668073857326963632503047217555174790594123713130706405298959647467700405063683334230692985506984189620260282636727982902723278234104739219877842079755833553420253344439456548411039682121142460541124490546843735931956621941332165785311031640094662898879866628141449187539328747364459897536849221519983125225758710693156081729281653619591160327415567568651456381213682840369585996830074453055138373355417881
 . . . . . . . . . . . . . . . . . . . . [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)
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:1|t:1|false]  
 . . . . . . . . . . . . . . . . [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 (82 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cssgroup.duy6.name.vn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'cssgroup.vn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cssgroup.duy6.name.vn'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.cssgroup.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 (246 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (243 bytes)
							00f100770048b0e36bdaa647340fe56a02fa9d30eb1c5201cb56dd2c81d9bbbfab39d884730000018fcccf17a20000040300483046022100bd883acbefcf63808b43d405378628d9504f1fe734c18289a956bc8b205ede43022100b8b8832aeaa6f49950e0711da2b0064c1297d0d55fde5ae1df3e516547ed9fc5007600dfe156ebaa05afb59c0f86718da8c0324eae56d96ea7f5a56a01d1c13bbe525c0000018fcccf1875000004030047304502201f2b9d22dc1addbe3262ecbab16fb90af42460a4737fbd327971be0cfad7bd640221008b85cbafc28930ff55fe0a0164969832d738acbb837d79b669e3ad9a0223be3e
 . . . . [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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