knowerstech.com
Issued by Sectigo RSA Domain Validation Secure Server CA
About this certificate
This digital certificate with serial number 4e:dc:5e:20:8a:a2:43:78:7f:d4:fc:0f:d7:4a:95:11 was issued on by Sectigo Limited.
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:
- Subscriber Certificate: commonName is deprecated. (BRs: 7.1.4.2.2)
Certificate Subject
CN=knowerstech.com,OU=Domain Control Validated+OU=PositiveSSL
Sectigo Limited
Organization:
Sectigo Limited
State / Province:
Greater Manchester
Locality: Salford
Country: GB
Locality: Salford
Country: GB
This certificate has expire since
Certificate Details
Serial Number (hex): 4e:dc:5e:20:8a:a2:43:78:7f:d4:fc:0f:d7:4a:95:11Serial Number (int): 104823998104810139837750408733866497297
Serial Number lenght: 127 bits, 16 octets
SubjectKeyId: e1:da:c9:4e:a9:73:3c:82:fb:36:c5:f8:43:7a:67:79:df:a5:eb:53
AuthorityKeyId: 8d:8c:5e:c4:54:ad:8a:e1:77:e9:9b:f9:9b:05:e1:b8:01:8d:61:e1
Fingerprint (sha1): bd:a3:b1:27:02:2d:9d:f7:ec:ba:82:5f:99:2a:af:36:f3:4b:f9:0a
Fingerprint (sha256): f0:da:8b:a1:e6:c5:f8:8a:72:ed:04:4f:95:38:0f:4d:0f:d4:50:14:79:bd:ae:c4:4b:c4:80:9f:24:29:c0:87
Issuing Certificate URL: http://crt.sectigo.com/SectigoRSADomainValidationSecureServerCA.crt
Revocation information
OCSP Server: http://ocsp.sectigo.comCheck the revocation status for certificate knowerstech.com
2
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for knowerstech.com
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
knowerstech.com
www.knowerstech.com
www.knowerstech.com
Other certificates including the domain name knowerstech.com
(limited to 100 certificates)
Certificate
The complete raw certificate details for knowerstech.com in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF+jCCBOKgAwIBAgIQTtxeIIqiQ3h/1PwP10qVETANBgkqhkiG9w0BAQsFADCB jzELMAkGA1UEBhMCR0IxGzAZBgNVBAgTEkdyZWF0ZXIgTWFuY2hlc3RlcjEQMA4G A1UEBxMHU2FsZm9yZDEYMBYGA1UEChMPU2VjdGlnbyBMaW1pdGVkMTcwNQYDVQQD Ey5TZWN0aWdvIFJTQSBEb21haW4gVmFsaWRhdGlvbiBTZWN1cmUgU2VydmVyIENB MB4XDTE5MTEwMTAwMDAwMFoXDTIwMTAzMTIzNTk1OVowUzEhMB8GA1UECxMYRG9t YWluIENvbnRyb2wgVmFsaWRhdGVkMRQwEgYDVQQLEwtQb3NpdGl2ZVNTTDEYMBYG A1UEAxMPa25vd2Vyc3RlY2guY29tMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIB CgKCAQEA0T9Y6iSY7Kv/uJGI4iISq4oR+vDGxe+osYgjOohDZm5pL2IRqMUHvGZS KiP8nzQTRx15i2XJeTrNdtllN+MjZ4rqt+doTM1bW2QOgAKrfRyDH3+BL3qbJy5E Q+7gyh21mOZONhrB/K8/7kq8j6O130KzTTLcIuASjfJxLfOhjfvhd2a+voEn5MOI MTdmwesnWWuh8/bQo2BHyD4fxYwpj0WcglHUUGPTr16yjZbCBpuXpdYW35+k8BZr uwuLDKp9XzFI3U3Klg9q8oIHPDddqeUgaleXDIP974ApcAjXQtIWWJWHRQm+2iGD eJLJ2s0dDhBs2CMDfa1sqwYwh/5mLwIDAQABo4ICizCCAocwHwYDVR0jBBgwFoAU jYxexFStiuF36Zv5mwXhuAGNYeEwHQYDVR0OBBYEFOHayU6pczyC+zbF+EN6Z3nf petTMA4GA1UdDwEB/wQEAwIFoDAMBgNVHRMBAf8EAjAAMB0GA1UdJQQWMBQGCCsG AQUFBwMBBggrBgEFBQcDAjBJBgNVHSAEQjBAMDQGCysGAQQBsjEBAgIHMCUwIwYI KwYBBQUHAgEWF2h0dHBzOi8vc2VjdGlnby5jb20vQ1BTMAgGBmeBDAECATCBhAYI KwYBBQUHAQEEeDB2ME8GCCsGAQUFBzAChkNodHRwOi8vY3J0LnNlY3RpZ28uY29t L1NlY3RpZ29SU0FEb21haW5WYWxpZGF0aW9uU2VjdXJlU2VydmVyQ0EuY3J0MCMG CCsGAQUFBzABhhdodHRwOi8vb2NzcC5zZWN0aWdvLmNvbTAvBgNVHREEKDAmgg9r bm93ZXJzdGVjaC5jb22CE3d3dy5rbm93ZXJzdGVjaC5jb20wggEDBgorBgEEAdZ5 AgQCBIH0BIHxAO8AdgAHt1wb5X1o//Gwxh0jFce65ld8V5S3au68YToaadOiHAAA AW4le5P1AAAEAwBHMEUCICI4Ow6CIqCOvCM1/QjtsXtyy14/N5Z0xSbXcZzn7YHn AiEAqP0xXIthdOIM2TSmiYo/zPvIY3OONOC5YtN1PtiRElcAdQBep3P531bA57U2 SH3QSeAyepGaDIShEhKEGHWWgXFFWAAAAW4le5PmAAAEAwBGMEQCIEpyZcUlPiKZ sqD9mL+14a6a7sGx4WNI8S/uzflJU72ZAiAnNSbiNidufYlLoYj8VKaJnhTtMDQR Tgj138BGtAHLJzANBgkqhkiG9w0BAQsFAAOCAQEAoy2wPPf2gu97nwtBlMI6JFg/ dSijxruynVTyI+1axzV67zgFiAQcRyP9hmzKyuCEhkIzc3g+DKHgGw4iDFHWJXEA HnB0bDNqsC2uTkGi2Ymr+Tdta9cAModKOqxxP1+2QduhkXyNoN84h4uiBfwQwYV3 MC7TsfVmteRxG9dRKOTlx85zNgGdtchcAGjrguMNA6+69ra8lFHOmgOZh54eEbR1 PkSHVAba9wEZNK/1DUk3mv1txS/CV6cFiInS9f9LpeUhJbhmBedew1IEg1I7vux/ TIfr8MsiQlPwxcPeJ4tfwpcun5ENg4NPQB4axMUFhd14PkTRabOrnE2IvkoObQ== -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0T9Y6iSY7Kv/uJGI4iIS q4oR+vDGxe+osYgjOohDZm5pL2IRqMUHvGZSKiP8nzQTRx15i2XJeTrNdtllN+Mj Z4rqt+doTM1bW2QOgAKrfRyDH3+BL3qbJy5EQ+7gyh21mOZONhrB/K8/7kq8j6O1 30KzTTLcIuASjfJxLfOhjfvhd2a+voEn5MOIMTdmwesnWWuh8/bQo2BHyD4fxYwp j0WcglHUUGPTr16yjZbCBpuXpdYW35+k8BZruwuLDKp9XzFI3U3Klg9q8oIHPDdd qeUgaleXDIP974ApcAjXQtIWWJWHRQm+2iGDeJLJ2s0dDhBs2CMDfa1sqwYwh/5m LwIDAQAB -----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 104823998104810139837750408733866497297 . . . . . . . . [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 2019-11-01 00:00:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2020-10-31 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 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'Domain Control Validated' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'PositiveSSL' . . . . . . . . . . . . [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 'knowerstech.com' . . . . . . . . [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 26415043466994473415536843509411349536817734195308178406228402217307766195604388187870566132326947327378099239393951160184455554827806651807211596448336147957732058741846393627661500724589137705188515915712433871520941921501270849446990386600374456879540371756359400937968313373528806095311294968102069863688173730093001028323132139311583230140055916077903339437015291082299167475102244508956518401059837319174992159924520213533297656225002448464370307214153926992168514587739000060470979519350901422679712186547797142083141729477347019352472606553815958157756668457552912269295239335588193464348437166481837752477231 . . . . . . . . . . . . . . . . . . . . [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) e1dac94ea9733c82fb36c5f8437a6779dfa5eb53 . . . . . . . . . . . . . . . . [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 'knowerstech.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.knowerstech.com' . . . . . . . . . . . . . . . . [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) 00ef00760007b75c1be57d68fff1b0c61d2315c7bae6577c5794b76aeebc613a1a69d3a21c0000016e257b93f50000040300473045022022383b0e8222a08ebc2335fd08edb17b72cb5e3f379674c526d7719ce7ed81e7022100a8fd315c8b6174e20cd934a6898a3fccfbc863738e34e0b962d3753ed89112570075005ea773f9df56c0e7b536487dd049e0327a919a0c84a1121284187596817145580000016e257b93e6000004030046304402204a7265c5253e2299b2a0fd98bfb5e1ae9aeec1b1e16348f12feecdf94953bd990220273526e236276e7d894ba188fc54a6899e14ed3034114e08f5dfc046b401cb27 . . . . [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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