contek.pt
Issued by cPanel, Inc. Certification Authority
About this certificate
This digital certificate with serial number 78:fc:31:b0:bb:8e:98:ad:ea:2d:ae:81:52:8e:fb:d0 was issued on by cPanel, Inc..
With 3 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=contek.pt
cPanel, Inc.
Organization:
cPanel, Inc.
State / Province:
TX
Locality: Houston
Country: US
Locality: Houston
Country: US
This certificate has expire since
Certificate Details
Serial Number (hex): 78:fc:31:b0:bb:8e:98:ad:ea:2d:ae:81:52:8e:fb:d0Serial Number (int): 160816826142813948064063983569106566096
Serial Number lenght: 127 bits, 16 octets
SubjectKeyId: 93:18:e1:3c:db:4c:d0:fb:86:54:6e:13:8b:98:b7:ef:81:6a:7e:bf
AuthorityKeyId: 7e:03:5a:65:41:6b:a7:7e:0a:e1:b8:9d:08:ea:1d:8e:1d:6a:c7:65
Fingerprint (sha1): 78:49:8b:3b:a7:66:f4:88:57:fa:21:28:62:51:fa:66:af:04:62:d0
Fingerprint (sha256): 7c:bb:71:22:54:e5:cc:0c:fb:6f:95:c5:d8:5d:3d:2c:10:8c:4a:75:25:62:e0:8a:44:29:22:4a:31:e7:2f:ac
Issuing Certificate URL: http://crt.comodoca.com/cPanelIncCertificationAuthority.crt
Revocation information
OCSP Server: http://ocsp.comodoca.comCRL Distribution Point: http://crl.comodoca.com/cPanelIncCertificationAuthority.crl
Check the revocation status for certificate contek.pt
3
DNS Names
0
Email Addresses
0
IP Addresses
Advanced Certificate Properties
Tehnical certificate details for contek.pt
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
10 extensions
No
unhandled critical extensions
CA Certificate
This is not a CA certificate
Subject Alternative Names
contek.pt
mail.contek.pt
www.contek.pt
mail.contek.pt
www.contek.pt
Other certificates including the domain name contek.pt
(limited to 100 certificates)
Certificate
The complete raw certificate details for contek.pt in PEM and ASN.1 format.
Certificate (PEM)
-----BEGIN CERTIFICATE----- MIIF5jCCBM6gAwIBAgIQePwxsLuOmK3qLa6BUo770DANBgkqhkiG9w0BAQsFADBy MQswCQYDVQQGEwJVUzELMAkGA1UECBMCVFgxEDAOBgNVBAcTB0hvdXN0b24xFTAT BgNVBAoTDGNQYW5lbCwgSW5jLjEtMCsGA1UEAxMkY1BhbmVsLCBJbmMuIENlcnRp ZmljYXRpb24gQXV0aG9yaXR5MB4XDTIzMDkwODAwMDAwMFoXDTIzMTIwNzIzNTk1 OVowFDESMBAGA1UEAxMJY29udGVrLnB0MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A MIIBCgKCAQEAzt49V/R0qtIcOtA/gIEOnBcDXNslPuQRbcrJ9mq5as/9ni5dKEXO zkrDNSLL6E9dwElPXD2nquYhQmNYgFPulUF05hxoRlxxKqmMdY5f04NK2rPZ0tpJ UlOQIgLO3Q9fEy+TDqEWecmOoT+Yx4tdMPppRyR7h6OJqCwIkXmpsdceTUG+Oa2s ncyAqxCN4jb5hYi9Yqa0RWCM+TofBNqqIyp5qAPsNOhja/1LTl/3mOkIag/p2ywZ bm8N0f9SXu1EYcTXndgCQtdGbxU4OtMrWcCdelH95VyytvGfLaBB5BFtn8aw3hvT KlBvIMkwoXeQz/6OjJmYx2eyj62M+qLpwwIDAQABo4IC1DCCAtAwHwYDVR0jBBgw FoAUfgNaZUFrp34K4bidCOodjh1qx2UwHQYDVR0OBBYEFJMY4TzbTND7hlRuE4uY t++Ban6/MA4GA1UdDwEB/wQEAwIFoDAMBgNVHRMBAf8EAjAAMB0GA1UdJQQWMBQG CCsGAQUFBwMBBggrBgEFBQcDAjBJBgNVHSAEQjBAMDQGCysGAQQBsjEBAgI0MCUw IwYIKwYBBQUHAgEWF2h0dHBzOi8vc2VjdGlnby5jb20vQ1BTMAgGBmeBDAECATBM BgNVHR8ERTBDMEGgP6A9hjtodHRwOi8vY3JsLmNvbW9kb2NhLmNvbS9jUGFuZWxJ bmNDZXJ0aWZpY2F0aW9uQXV0aG9yaXR5LmNybDB9BggrBgEFBQcBAQRxMG8wRwYI KwYBBQUHMAKGO2h0dHA6Ly9jcnQuY29tb2RvY2EuY29tL2NQYW5lbEluY0NlcnRp ZmljYXRpb25BdXRob3JpdHkuY3J0MCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5j b21vZG9jYS5jb20wggECBgorBgEEAdZ5AgQCBIHzBIHwAO4AdQCt9776fP8QyIud PZwePhhqtGcpXc+xDCTKhYY069yCigAAAYpyVbWBAAAEAwBGMEQCID+M8HAK2Bec qTqNnUYR0Qo7NFnpxKJCjxLl+a9hGxKYAiAT5JOGWI71SxFui7aAMMaNZjIwcTLe KP9Qiza9C2122gB1AHoyjFTYty22IOo44FIe6YQWcDIThU070ivBOlejUutSAAAB inJVtd8AAAQDAEYwRAIgTgQ04H3P4GxhRe52XLr0r3CIz/xL8cUMh6BMPRWkylkC IDhlzaX1huOTsyF6kD5nMmx8O/YcXsANIluPrWW1G8Y9MDMGA1UdEQQsMCqCCWNv bnRlay5wdIIObWFpbC5jb250ZWsucHSCDXd3dy5jb250ZWsucHQwDQYJKoZIhvcN AQELBQADggEBAECj9yz0NC6ig/44W2XF24A4x302CKBbAJlYC/jpKW+G961lKx1x T8h836hc6MgJ+noO27h4jCBPumbaWix457eBEVLw5wizdH1dzniuQLlqy6aBkVeQ fraFsTJQrlzW7k9wZUDvdYuvW265urifQT8H81WwTpNB7ZnDGoPbqIZVD81h5kiH 8k7UwDjJ+meKuBzPpRvw3ZT8UZN4IdyjY8BgyrXLuLnmBA6BWEk1HscZ356ZoHyJ UU/rufwgAqBJwQ0pjhVgJPD3J6a4mIz1Hh6lZikcI6wijM765VfdY2Neqt5kwuK0 6T6lUBpw1BSyeWSMv6SyHIPNQbiDxeWN/hY= -----END CERTIFICATE-----
Public Key (PEM)
-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzt49V/R0qtIcOtA/gIEO nBcDXNslPuQRbcrJ9mq5as/9ni5dKEXOzkrDNSLL6E9dwElPXD2nquYhQmNYgFPu lUF05hxoRlxxKqmMdY5f04NK2rPZ0tpJUlOQIgLO3Q9fEy+TDqEWecmOoT+Yx4td MPppRyR7h6OJqCwIkXmpsdceTUG+Oa2sncyAqxCN4jb5hYi9Yqa0RWCM+TofBNqq Iyp5qAPsNOhja/1LTl/3mOkIag/p2ywZbm8N0f9SXu1EYcTXndgCQtdGbxU4OtMr WcCdelH95VyytvGfLaBB5BFtn8aw3hvTKlBvIMkwoXeQz/6OjJmYx2eyj62M+qLp wwIDAQAB -----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 160816826142813948064063983569106566096 . . . . . . . . [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 2.5.4.8 (stateOrProvinceName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'TX' . . . . . . . . . . . . [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 'Houston' . . . . . . . . . . . . [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 'cPanel, Inc.' . . . . . . . . . . . . [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 'cPanel, Inc. Certification Authority' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-09-08 00:00:00 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2023-12-07 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 'contek.pt' . . . . . . . . [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 26114681265766472049479545223465520479613605718357343625824871494699578116308976974607240026813186386128221690463992651115841786232412522314383072507368188235412287420662039590868397668591737821446486282333232462458435429375469095580955807392626323675916588202057716579435867626147297211588131144699571595316547876053316284207221605218057404545451845679495617572637129565959381135149754560623656567207027960585019218588735524620582088159972064206274438747019673695351450642503874182969727086363498206207702671176349762888395898673971818738022997358983033367714019733469950326936116977594473253468571284038798870243779 . . . . . . . . . . . . . . . . . . . . [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 7e035a65416ba77e0ae1b89d08ea1d8e1d6ac765 . . . . . . . . . . . . . . . . [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) 9318e13cdb4cd0fb86546e138b98b7ef816a7ebf . . . . . . . . . . . . . . . . [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 1.3.6.1.4.1.6449.1.2.2.52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (69 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:0|true] OtherName . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:6|false] IA5String 'http://crl.comodoca.com/cPanelIncCertificationAuthority.crl' . . . . . . . . . . . . . . . . [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 (113 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.comodoca.com/cPanelIncCertificationAuthority.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.comodoca.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 (243 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (240 bytes) 00ee007500adf7befa7cff10c88b9d3d9c1e3e186ab467295dcfb10c24ca858634ebdc828a0000018a7255b581000004030046304402203f8cf0700ad8179ca93a8d9d4611d10a3b3459e9c4a2428f12e5f9af611b1298022013e49386588ef54b116e8bb68030c68d6632307132de28ff508b36bd0b6d76da0075007a328c54d8b72db620ea38e0521ee98416703213854d3bd22bc13a57a352eb520000018a7255b5df000004030046304402204e0434e07dcfe06c6145ee765cbaf4af7088cffc4bf1c50c87a04c3d15a4ca5902203865cda5f586e393b3217a903e67326c7c3bf61c5ec00d225b8fad65b51bc63d . . . . . . . . . . . . . . . . [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 (44 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'contek.pt' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'mail.contek.pt' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.contek.pt' . . . . [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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