i-concept.com.sg
Issued by R3
About this certificate
This digital certificate with serial number 04:cc:55:27:54:21:b3:d1:6f:bd:88:91:28:79:5b:6c:fe:07 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=i-concept.com.sg
Let's Encrypt
Organization:
Let's Encrypt
Country:
US
This certificate will expire on
Certificate Details
Serial Number (hex): 04:cc:55:27:54:21:b3:d1:6f:bd:88:91:28:79:5b:6c:fe:07Serial Number (int): 417979935164524220920142668112271535570439
Serial Number lenght: 139 bits, 18 octets
SubjectKeyId: 40:1e:41:bd:6e:98:b5:4e:48:fc:3b:90:bd:5e:64:b9:f2:3f:69:ed
AuthorityKeyId: 14:2e:b3:17:b7:58:56:cb:ae:50:09:40:e6:1f:af:9d:8b:14:c2:c6
Fingerprint (sha1): 61:39:70:a4:9c:8e:99:c4:f2:01:77:b5:ba:9e:89:f4:0f:82:c8:5b
Fingerprint (sha256): 20:6c:21:b6:d8:6f:db:33:30:80:ff:a8:5b:32:06:c6:6c:69:4b:49:a9:42:e7:cf:0a:8e:b3:b7:ec:1a:2b:6e
Issuing Certificate URL: http://r3.i.lencr.org/
Revocation information
OCSP Server: http://r3.o.lencr.orgCheck 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
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
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----- MIIFBTCCA+2gAwIBAgISBMxVJ1Qhs9FvvYiRKHlbbP4HMA0GCSqGSIb3DQEBCwUA MDIxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQD EwJSMzAeFw0yNDA0MTYwMzUyMjJaFw0yNDA3MTUwMzUyMjFaMBsxGTAXBgNVBAMT EGktY29uY2VwdC5jb20uc2cwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIB AQCeTTjxTCM+MIsrA2l+Kl8Af8AgD8JGUJKQDWKrTY2/m9Jw0wU2zMP9wwrlv1Ob uaWW+WcIScwo6TzFoWCXG/2Shw29UDVvdA3DGoPi6QBqHaR+TxYOO1NVEpioOeTM tzyhpfvX1LJUFGv0Rz4RK8sOrFBqXEKNEaw3SFNA+Z9P544WTYlOEmjTKO3io/EL hxgG6H7S7iIOvSSx36KcFLX6WPHtriWJzYBgH0JiqLE7SOPUTD9fl0NBF1TWroli cvPFnR7DG9fRA2K9c/M5Go9JtaRhu6aVfjDTr3My/JvENEMgE9oEihGc6OuGvBoF /OCpxavtr3QF0/3e/VHPDMGTAgMBAAGjggIqMIICJjAOBgNVHQ8BAf8EBAMCBaAw HQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMCMAwGA1UdEwEB/wQCMAAwHQYD VR0OBBYEFEAeQb1umLVOSPw7kL1eZLnyP2ntMB8GA1UdIwQYMBaAFBQusxe3WFbL rlAJQOYfr52LFMLGMFUGCCsGAQUFBwEBBEkwRzAhBggrBgEFBQcwAYYVaHR0cDov L3IzLm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZodHRwOi8vcjMuaS5sZW5jci5v cmcvMDEGA1UdEQQqMCiCEGktY29uY2VwdC5jb20uc2eCFHd3dy5pLWNvbmNlcHQu Y29tLnNnMBMGA1UdIAQMMAowCAYGZ4EMAQIBMIIBBgYKKwYBBAHWeQIEAgSB9wSB 9ADyAHcA7s3QZNXbGs7FXLedtM0TojKHRny87N7DUUhZRnEftZsAAAGO5T+7FQAA BAMASDBGAiEAiS/s6kvPS1LASZ2kHsmteo4iCjyThCS4dEra5ix7j7YCIQCnmDQC 2mCYxPzEghKsCuEOKjf5B0OiRtwG6xf4J+ivtAB3ABmYEHEJ8NZSLjCA0p4/ZLuD bijM+Q9Sju7fzko/FrTKAAABjuU/uzQAAAQDAEgwRgIhAPzfhXOnh2CWC2m2HgRl TgAjCl/M3zALYqJaxh8RpRHYAiEAu5VMksrQ2HwQYcXr7GEqYCr2JmB3INoEH126 Hzszuz8wDQYJKoZIhvcNAQELBQADggEBADvTevalnLnLWHzEW2zvZgujSdtE5r9G j6fHEC6sNdNDfI6pByVXTt5tDiZJyeksHoMPZhrFiiolIEayb5qR1wG40SmGVrJ8 NkgvdH1i3gzrKMbLcPyZ9+XjhkmqrpFiyk71kcWgJVunr6LLQiH8QIN+OlGnPoFv RNgFzWTl5gKFDk0XoPIQVui8SsyUIH8H6lM0wNrKPSQGfC/HTE4kIDlTFdiN3Ttn d2TWVgdwnLoWK0go6mxZrNwmGooaThp0ONvGaQAmJKcKvCJV8JvMxkPLYoFxEEwu 4h0HaFLTpDXMWqZt18sBjg4eHpa99bg4QD7TMasFyznx/DSxgFbPf5A= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnk048UwjPjCLKwNpfipf AH/AIA/CRlCSkA1iq02Nv5vScNMFNszD/cMK5b9Tm7mllvlnCEnMKOk8xaFglxv9 kocNvVA1b3QNwxqD4ukAah2kfk8WDjtTVRKYqDnkzLc8oaX719SyVBRr9Ec+ESvL DqxQalxCjRGsN0hTQPmfT+eOFk2JThJo0yjt4qPxC4cYBuh+0u4iDr0ksd+inBS1 +ljx7a4lic2AYB9CYqixO0jj1Ew/X5dDQRdU1q6JYnLzxZ0ewxvX0QNivXPzORqP SbWkYbumlX4w069zMvybxDRDIBPaBIoRnOjrhrwaBfzgqcWr7a90BdP93v1RzwzB kwIDAQAB -----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 417979935164524220920142668112271535570439 . . . . . . . . [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 2024-04-16 03:52:22 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-07-15 03:52:21 +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 19983731985063868023822263908694583239092449195836630608531051769871389413481942191032733121769277414785127793593682068471733023801673664675764001185498275364250482124832028133768177910091718558890990208530230084151869099364512053449226428411857668586967497906271388027817913915349866251039800395001884786707735675639596510070465745263612235613302590615063596008979774335176209233252461093711495688448530960360897580424952256411842030983447798009806812423848255389348637252308153001226133707799902451252544020020230572187948679328561703325251498269952938676480818754355349390956015006335303874487188134697752289132947 . . . . . . . . . . . . . . . . . . . . [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) 401e41bd6e98b54e48fc3b90bd5e64b9f23f69ed . . . . . . . . . . . . . . . . [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 (247 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (244 bytes) 00f2007700eecdd064d5db1acec55cb79db4cd13a23287467cbcecdec351485946711fb59b0000018ee53fbb150000040300483046022100892fecea4bcf4b52c0499da41ec9ad7a8e220a3c938424b8744adae62c7b8fb6022100a7983402da6098c4fcc48212ac0ae10e2a37f90743a246dc06eb17f827e8afb40077001998107109f0d6522e3080d29e3f64bb836e28ccf90f528eeedfce4a3f16b4ca0000018ee53fbb340000040300483046022100fcdf8573a78760960b69b61e04654e00230a5fccdf300b62a25ac61f11a511d8022100bb954c92cad0d87c1061c5ebec612a602af626607720da041f5dba1f3b33bb3f . . . . [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) 003bd37af6a59cb9cb587cc45b6cef660ba349db44e6bf468fa7c7102eac35d3437c8ea90725574ede6d0e2649c9e92c1e830f661ac58a2a252046b26f9a91d701b8d1298656b27c36482f747d62de0ceb28c6cb70fc99f7e5e38649aaae9162ca4ef591c5a0255ba7afa2cb4221fc40837e3a51a73e816f44d805cd64e5e602850e4d17a0f21056e8bc4acc94207f07ea5334c0daca3d24067c2fc74c4e2420395315d88ddd3b677764d65607709cba162b4828ea6c59acdc261a8a1a4e1a7438dbc669002624a70abc2255f09bccc643cb628171104c2ee21d076852d3a435cc5aa66dd7cb018e0e1e1e96bdf5b838403ed331ab05cb39f1fc34b18056cf7f90