www.techforum.co.kr
Issued by Sectigo RSA Domain Validation Secure Server CA
About this certificate
This digital certificate with serial number 4f:d0:84:79:7a:8b:d7:55:22:c0:79:ce:b0:1f:cd:b9 was issued on by Sectigo Limited.
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=www.techforum.co.kr
Sectigo Limited
Organization:
Sectigo Limited
State / Province:
Greater Manchester
Locality: Salford
Country: GB
Locality: Salford
Country: GB
This certificate will expire on
Certificate Details
Serial Number (hex): 4f:d0:84:79:7a:8b:d7:55:22:c0:79:ce:b0:1f:cd:b9Serial Number (int): 106091696316185173119017641254796119481
Serial Number lenght: 127 bits, 16 octets
SubjectKeyId: 30:ec:75:ab:06:84:7c:f3:5d:dd:29:63:d1:0e:97:03:65:8b:98:e9
AuthorityKeyId: 8d:8c:5e:c4:54:ad:8a:e1:77:e9:9b:f9:9b:05:e1:b8:01:8d:61:e1
Fingerprint (sha1): 40:cd:3d:b2:68:f5:1b:c0:e1:57:d3:6f:df:a1:70:5f:24:a8:13:cf
Fingerprint (sha256): 50:b7:dc:2f:54:cd:0c:01:4f:08:0f:b4:ee:ed:1e:0b:4f:27:b2:39:14:cb:b1:d0:20:da:76:46:3d:88:10:f5
Issuing Certificate URL: http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt
Revocation information
OCSP Server: http://ocsp.sectigo.comCheck the revocation status for certificate www.techforum.co.kr
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for www.techforum.co.kr
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
www.techforum.co.kr
techforum.co.kr
techforum.co.kr
Other certificates including the domain name techforum.co.kr
(limited to 100 certificates)
Certificate
The complete raw certificate details for www.techforum.co.kr in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIGQjCCBSqgAwIBAgIQT9CEeXqL11UiwHnOsB/NuTANBgkqhkiG9w0BAQsFADCB jzELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G A1UEBxMHU2FsZm9yZDEYMBYGA1UEChMPU2VjdGlnbyBMaW1pdGVkMTcwNQYDVQQD Ey5TZWN0aWdvIFJTQSBEb21haW4gVmFsaWRhdGlvbiBTZWN1cmUgU2VydmVyIENB MB4XDTIzMTEwMTAwMDAwMFoXDTI0MTEzMDIzNTk1OVowHjEcMBoGA1UEAxMTd3d3 LnRlY2hmb3J1bS5jby5rcjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB AKVwmOwIoBKJq6HypoGFj6CMgjW8aTK1o4iXAQcegLzsv/oM4Ek7/oyYPQHCpw/V LPgsXUGsvzZAAS/TfQD4BgMBBAAzVUMEB5Iyp2TsRJ5sHHWfVuYUB9AWyE4mjBSV P1V+mn4dsvxSkDGpRrn+HcRQ88aaz+XIrVwMnvWzCRoZ8jLM8MNGoo3/lKD2IjZ9 1VjkfFwb5s29bL9VpCx2lw8g4TXxfnQOuaNpuP7XK+TTZa9XBw5ntUGc2F3Iw4Sc FsBt2xd5MdEMBgyK4D4XLV5Z5XQVNjiCqTmVpbNKrEtFeEl+tZdNiMWAIiIRGUpn VPbUcqcqMc+9WPSHhh0Q0KECAwEAAaOCAwgwggMEMB8GA1UdIwQYMBaAFI2MXsRU rYrhd+mb+ZsF4bgBjWHhMB0GA1UdDgQWBBQw7HWrBoR8813dKWPRDpcDZYuY6TAO BgNVHQ8BAf8EBAMCBaAwDAYDVR0TAQH/BAIwADAdBgNVHSUEFjAUBggrBgEFBQcD AQYIKwYBBQUHAwIwSQYDVR0gBEIwQDA0BgsrBgEEAbIxAQICBzAlMCMGCCsGAQUF BwIBFhdodHRwczovL3NlY3RpZ28uY29tL0NQUzAIBgZngQwBAgEwgYQGCCsGAQUF BwEBBHgwdjBPBggrBgEFBQcwAoZDaHR0cDovL2NydC5zZWN0aWdvLmNvbS9TZWN0 aWdvUlNBRG9tYWluVmFsaWRhdGlvblNlY3VyZVNlcnZlckNBLmNydDAjBggrBgEF BQcwAYYXaHR0cDovL29jc3Auc2VjdGlnby5jb20wLwYDVR0RBCgwJoITd3d3LnRl Y2hmb3J1bS5jby5rcoIPdGVjaGZvcnVtLmNvLmtyMIIBgAYKKwYBBAHWeQIEAgSC AXAEggFsAWoAdgB2/4g/Crb7lVHCYcz1h7o0tKTNuyncaEIKn+ZnTFo6dAAAAYuI oZ6YAAAEAwBHMEUCIGa749QcGEqXQRtQERRENWle/2xDi3llgq6lrcTYsgwMAiEA rOSS1K5PITAkffzT2qUkGXktwYfDY/lYrIiw3pWDhD4AdwDatr9rP7W2Ip+bwrtc a+hwkXFsu1GEhTS9pD0wSNf7qwAAAYuIoZ7uAAAEAwBIMEYCIQDnknyjjIkuGDz8 hp1ugxOk1g4jyyy2UGTyNrJftVSW+AIhAKwez0ZZC5UUgVwkZnfjtvwSDTgsZeVm srkeSk08LGYCAHcA7s3QZNXbGs7FXLedtM0TojKHRny87N7DUUhZRnEftZsAAAGL iKGe9QAABAMASDBGAiEAk9Mvecq/msZEfsnGCd6OokbjeRd3DhTp+/Ih4A3rLLcC IQCq0+cwhX5J6kVvL5z/tLELHyonBgz/qTlsQI5p9af5VTANBgkqhkiG9w0BAQsF AAOCAQEAwQ5bsZ+YD1aKIjlPsXdG/P8g0w6iN9+9l0oNgDurQEdIGGPZzHLtnQxR higX10LKEdcMxRz9Y536GPB8FoYjgAbU2gn81+npbqKwFD81FaOgRIyBdBGYEvdV FqI5348YothTQMve2SfH6qSL8mYtrIpINqnMPkjfc0jGz3m6WdB63Ya5GUOoVUj7 srV0fi6joscl55ym5/Z54X3O/7FPTQ3q6/fRQZ1l78cpmFkgGAPVYM7Y9n1+KQCO 4UHKdmtygBesETSHLEzlO+RZvU5cdBOSccMSBTyzdAcPihHrXv52YsrIJkt57//y 5g5qNz3RNnqr1ardREZaWfZ5RsfmjQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApXCY7AigEomrofKmgYWP oIyCNbxpMrWjiJcBBx6AvOy/+gzgSTv+jJg9AcKnD9Us+CxdQay/NkABL9N9APgG AwEEADNVQwQHkjKnZOxEnmwcdZ9W5hQH0BbITiaMFJU/VX6afh2y/FKQMalGuf4d xFDzxprP5citXAye9bMJGhnyMszww0aijf+UoPYiNn3VWOR8XBvmzb1sv1WkLHaX DyDhNfF+dA65o2m4/tcr5NNlr1cHDme1QZzYXcjDhJwWwG3bF3kx0QwGDIrgPhct XlnldBU2OIKpOZWls0qsS0V4SX61l02IxYAiIhEZSmdU9tRypyoxz71Y9IeGHRDQ oQIDAQAB -----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 106091696316185173119017641254796119481 . . . . . . . . [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 'GB' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.8 (stateOrProvinceName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Greater Manchester' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.7 (localityName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Salford' . . . . . . . . . . . . [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 'Sectigo Limited' . . . . . . . . . . . . [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 'Sectigo RSA Domain Validation Secure Server CA' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-11-01 00:00:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2024-11-30 23:59:59 +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 'www.techforum.co.kr' . . . . . . . . [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 20884844142869116351155835010912199019389452188316164800912002033733566992655217603920654560796783067972372245547683911233533997946451670236918764940554567386571026374325651113266940494904937052995117742406621473739037326194340452819234863657226883397634039126788446277222894382426051414309344380239118229478827000148123501034246439699642151757418696792354549544037804442711555825005554215660019614438567984779144666751050317287666343188889544980409684141482763356864376827273298963482784754975347073583958739173048796707296339545324374115853018725181863033846543502797200904051378733531616221916685883553764298772641 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.35 (authorityKeyIdentifier) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (24 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|false] OtherName 8d8c5ec454ad8ae177e99bf99b05e1b8018d61e1 . . . . . . . . . . . . . . . . [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) 30ec75ab06847cf35ddd2963d10e9703658b98e9 . . . . . . . . . . . . . . . . [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 2.5.29.19 (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 2.5.29.37 (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 2.5.29.32 (certificatePolicies) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (66 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.4.1.6449.1.2.2.7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.2.1 (cps) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:22|false] IA5String 'https://sectigo.com/CPS' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 1.3.6.1.5.5.7.1.1 (authorityInfoAccess) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (120 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.3.6.1.5.5.7.48.2 (caIssuers) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://ocsp.sectigo.com' . . . . . . . . . . . . . . . . [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 (40 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.techforum.co.kr' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'techforum.co.kr' . . . . . . . . . . . . . . . . [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 (368 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (364 bytes) 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 . . . . [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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