i-concept.com.sg

Issued by R3

About this certificate

This digital certificate with serial number 03:db:7d:07:61:46:2e:1a:2f:0c:9b:39:d8:bd:4e:58:55:bd 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=i-concept.com.sg

Let's Encrypt

Organization: Let's Encrypt
Country: US

This certificate has expire since

Certificate Details

Serial Number (hex): 03:db:7d:07:61:46:2e:1a:2f:0c:9b:39:d8:bd:4e:58:55:bd
Serial Number (int): 336024887969471358561174510572330871707069
Serial Number lenght: 138 bits, 18 octets

SubjectKeyId: fc:dc:e3:b9:bd:3d:b6:44:f6:10:3c:90:fb:26:5a:64:38:47:fa:ac
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6

Fingerprint (sha1): 85:0f:52:b3:7e:41:90:73:d5:d6:5a:60:67:9b:ec:32:c6:b3:5f:f3
Fingerprint (sha256): 8c:ea:63:33:0a:1b:86:ee:32:be:ee:99:01:2d:59:b2:5f:38:66:61:90:4b:f9:b3:2f:1d:fc:ce:e9:c0:0b:33

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

Revocation information

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

Check the revocation status for certificate i-concept.com.sg

2

DNS Names

0

Email Addresses

0

IP Addresses

Advanced Certificate Properties

Tehnical certificate details for i-concept.com.sg

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

i-concept.com.sg
www.i-concept.com.sg

Other certificates including the domain name i-concept.com.sg

(limited to 100 certificates)
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
mummyguru.i-concept.com.sg
mail.i-concept.com.sg
i-concept.com.sg
mail.i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
mail.i-concept.com.sg
i-concept.iconcept-s1.com
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
mail.i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
mail.i-concept.com.sg
mail.i-concept.com.sg
i-concept.com.sg
mail.i-concept.com.sg
mummyguru.i-concept.com.sg
mail.i-concept.com.sg
mummyguru.i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
mummyguru.i-concept.com.sg
mail.i-concept.com.sg
mail.i-concept.com.sg
mummyguru.i-concept.com.sg
i-concept.com.sg
mail.i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
i-concept.com.sg
mail.i-concept.com.sg
i-concept.com.sg

Certificate

The complete raw certificate details for i-concept.com.sg in PEM and ASN.1 format.

Certificate (PEM)

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

Public Key (PEM)

-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6VL9aMN7L0LfZ67Mi4dD
DoDhVQ6QcLc/JXJUhyRC8MsbL4HTvicr0d56KA9AEnHnf7j0uUEoKUmc4SPfHaqY
TDa3TtoBbJIrqBszWRCEoqJh/txRkKJp7g9kekTXQxSxKiFoBOsWV6oWVdHhnCwm
g9OU0lW3OyGfnxkdahjWf6nSPg2Vw4h4A7S1Fnfcsq/ljTESfrSNbXtu4BkAdUnM
0xv/dNKf5trxHBithI0NQAi0KwqRoKsIgNFWPwRUsguVAQvC2iHvZsY3XT4I4i6u
6+5iYmZE1yDqOXigvEDsJEWxCG+pBz2y65Psr/OaIyLo/aQ/8OH+08xalJZrLoug
XQIDAQAB
-----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 336024887969471358561174510572330871707069
 . . . . . . . . [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 2023-10-19 04:29:24 +0000 UTC
 . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-01-17 04:29:23 +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 'i-concept.com.sg'
 . . . . . . . . [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 29454448892080973441186246771029048837984971515935487843556245399276798138831340428787629846069030494448042214782272219578529605794177747651776992427098853274249745994100268007925556534418087119335738363039347746195482851078680204075048950213920559181598770766709617707719903893333941187950910714667950337068793098165657118672378828371082412643242135056689580027886401750859948003813563797747917653531496179573415999644670959147480101017342815208137315550678610612808963071978579907132637074695785860428463579426163858678955351727448053928653026663965201241446096938682475629799697986561250101210266394341259627700317
 . . . . . . . . . . . . . . . . . . . . [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)
							fcdce3b9bd3db644f6103c90fb265a643847faac
 . . . . . . . . . . . . . . . . [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 (42 bytes)
 . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF 
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'i-concept.com.sg'
 . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.i-concept.com.sg'
 . . . . . . . . . . . . . . . . [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)
							00f0007600dab6bf6b3fb5b6229f9bc2bb5c6be87091716cbb51848534bda43d3048d7fbab0000018b4668f20900000403004730450220298f5edc323df6b883283bccd2b8de402cc16737d346887f5a2fcc9c66039d5f022100bc816880ab13666ce21f5d5eec0f60ac3ca986090bf1c2d6019f043e325c22c000760076ff883f0ab6fb9551c261ccf587ba34b4a4cdbb29dc68420a9fe6674c5a3a740000018b4668f2530000040300473045022100ededed3f64a86ab27e73758a698f107ff73b4fe2412ef24173605aed3aace492022029703c301901c96e30258c045ba50a901626de1dd8c16ca4dfe7322569fb965b
 . . . . [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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