www.lapbandsurgicalcenter.com

Issued by Go Daddy Secure Certification Authority

About this certificate


This digital certificate with serial number 27:ae:8f:5e:fa:57:66 was issued on by GoDaddy.com, Inc. .

With 2 subject alternative names this certificate can be used to secure multiple fqdn's. While the 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.

Cerificate errors/warnings *beta

  • ERROR: localityName or stateOrProvinceName is required if organizationName is set
  • ERROR: stateOrProvinceName is required if organizationName is set
  • ERROR: countryName is required if organizationName is set

www.lapbandsurgicalcenter.com

Organization: www.lapbandsurgicalcenter.com
Organization unit: Domain Control Validated

GoDaddy.com, Inc.

Company registration number: 07969287
Organization: GoDaddy.com, Inc.
Organization unit: http://certificates.godaddy.com/repository

Time since certificate expired

This certificate has expire since

Certificate Details

Serial Number (hex): 27:ae:8f:5e:fa:57:66
Serial Number (int): 11169454888736614
Serial Number lenght: 54 bits, 7 octets

SubjectKeyId: 4c:eb:26:8f:57:fd:09:2e:71:a8:b1:d4:06:70:2d:23:a6:3f:c5:67
AuthorityKeyId: fd:ac:61:32:93:6c:45:d6:e2:ee:85:5f:9a:ba:e7:76:99:68:cc:e7

Fingerprint (sha1): 07:a0:b9:fa:c7:8c:94:9c:f0:c5:d4:95:e8:7f:fa:54:94:b5:ee:95
Fingerprint (sha256): c3:9a:fe:09:c8:62:98:70:39:27:b0:e8:ed:99:3e:b3:f8:92:d7:81:63:ca:51:b9:ed:84:13:93:dd:8b:97:da

Issuing Certificate URL: http://certificates.godaddy.com/repository/gd_intermediate.crt

Revocation information

OCSP Server: http://ocsp.godaddy.com/
CRL Distribution Point: http://crl.godaddy.com/gds1-75.crl

Check the revocation status for the current certificate on www.lapbandsurgicalcenter.com
2
DNS Names
0
Email Addresses
0
IP Addresses

Advanced Certificate Properties

Technical details about this certificate


Public Key Algorithm

RSA

Key Size

2048

Signature Algorithm

SHA1 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.lapbandsurgicalcenter.com
lapbandsurgicalcenter.com

Certificate

The complete raw certificate details in PEM and ASN.1 format.

Certificate (PEM)

-----BEGIN CERTIFICATE----- MIIFlzCCBH+gAwIBAgIHJ66PXvpXZjANBgkqhkiG9w0BAQUFADCByjELMAkGA1UE BhMCVVMxEDAOBgNVBAgTB0FyaXpvbmExEzARBgNVBAcTClNjb3R0c2RhbGUxGjAY BgNVBAoTEUdvRGFkZHkuY29tLCBJbmMuMTMwMQYDVQQLEypodHRwOi8vY2VydGlm aWNhdGVzLmdvZGFkZHkuY29tL3JlcG9zaXRvcnkxMDAuBgNVBAMTJ0dvIERhZGR5 IFNlY3VyZSBDZXJ0aWZpY2F0aW9uIEF1dGhvcml0eTERMA8GA1UEBRMIMDc5Njky ODcwHhcNMTIwOTA0MTQ1NzE5WhcNMTMwOTA5MTQyNDM2WjBzMSYwJAYDVQQKEx13 d3cubGFwYmFuZHN1cmdpY2FsY2VudGVyLmNvbTEhMB8GA1UECxMYRG9tYWluIENv bnRyb2wgVmFsaWRhdGVkMSYwJAYDVQQDEx13d3cubGFwYmFuZHN1cmdpY2FsY2Vu dGVyLmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKqjpoM1bbSy T1F4DfXuMKfx/Dy1DSJxBdMUxhhLIYAcs4coUhieqHpvFppu313PXU+WcegOub7r kVvGJeew6yvUd3pt3xH8JcnmJWWDaAe78IOrukFcX+MsCR3hu3Fg2wp25GxYPAK6 ru6AeVURZb0ix3p8c9nHttAW8evRMfCq3chPoP3Rc4L/yq2ZU5rcTHthL9nkOfVx RICsFPnRqK3bRqdjwy8qlvog3Gb6XmEZgD0i4k3wNJimaG6Vy4vVZFQWIZm47Azl SwvhS9/e7bkbpGNBZOMgOnTjELYanCpK9HxIP3Co0F+a1/nj+OWj+BIUN0+iaPN9 QWMhKUuJuycCAwEAAaOCAdYwggHSMA8GA1UdEwEB/wQFMAMBAQAwHQYDVR0lBBYw FAYIKwYBBQUHAwEGCCsGAQUFBwMCMA4GA1UdDwEB/wQEAwIFoDAzBgNVHR8ELDAq MCigJqAkhiJodHRwOi8vY3JsLmdvZGFkZHkuY29tL2dkczEtNzUuY3JsMFMGA1Ud IARMMEowSAYLYIZIAYb9bQEHFwEwOTA3BggrBgEFBQcCARYraHR0cDovL2NlcnRp ZmljYXRlcy5nb2RhZGR5LmNvbS9yZXBvc2l0b3J5LzCBgAYIKwYBBQUHAQEEdDBy MCQGCCsGAQUFBzABhhhodHRwOi8vb2NzcC5nb2RhZGR5LmNvbS8wSgYIKwYBBQUH MAKGPmh0dHA6Ly9jZXJ0aWZpY2F0ZXMuZ29kYWRkeS5jb20vcmVwb3NpdG9yeS9n ZF9pbnRlcm1lZGlhdGUuY3J0MB8GA1UdIwQYMBaAFP2sYTKTbEXW4u6FX5q653aZ aMznMEMGA1UdEQQ8MDqCHXd3dy5sYXBiYW5kc3VyZ2ljYWxjZW50ZXIuY29tghls YXBiYW5kc3VyZ2ljYWxjZW50ZXIuY29tMB0GA1UdDgQWBBRM6yaPV/0JLnGosdQG cC0jpj/FZzANBgkqhkiG9w0BAQUFAAOCAQEAZVTGOC1MnO+7JbQwmbRxQHg0gJ61 /5IOnNhC9m+PhzDhHd3r96msWphVZLUkZ4H4n/9DlE9mGc5sDw1vLHrYSn8yvKqS KpXXTHhSkio73JTIX3uAc98aMyH6QEX58SwVyOPcLd8DQyM0Z5IjL4TDBQw2IWUh guQ8/m5uAcrw4aIYz29WfZj161/F9HVrBnxK75yRWeUvSuomSSrRzetf+4aW5RNY DnNeI9jd9LwDq67i9nNlay35D63H3horYwWj2q9CniiCL5NB7i4Gj4thmv3/82V8 5AOn1hVSaReMYuTZ4KBQLPIs87U/9Nu+1YKjgT8TXAz3aqh17riknbatTA== -----END CERTIFICATE-----

Public Key (PEM)

-----BEGIN PUBLIC KEY----- MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqqOmgzVttLJPUXgN9e4w p/H8PLUNInEF0xTGGEshgByzhyhSGJ6oem8Wmm7fXc9dT5Zx6A65vuuRW8Yl57Dr K9R3em3fEfwlyeYlZYNoB7vwg6u6QVxf4ywJHeG7cWDbCnbkbFg8Arqu7oB5VRFl vSLHenxz2ce20Bbx69Ex8KrdyE+g/dFzgv/KrZlTmtxMe2Ev2eQ59XFEgKwU+dGo rdtGp2PDLyqW+iDcZvpeYRmAPSLiTfA0mKZobpXLi9VkVBYhmbjsDOVLC+FL397t uRukY0Fk4yA6dOMQthqcKkr0fEg/cKjQX5rX+eP45aP4EhQ3T6Jo831BYyEpS4m7 JwIDAQAB -----END PUBLIC KEY-----

ASN1 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 11169454888736614 . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . . . . . [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 'Arizona' . . . . . . . . . . . . [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 'Scottsdale' . . . . . . . . . . . . [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 'GoDaddy.com, Inc.' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.11 (organizationalUnitName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'http://certificates.godaddy.com/repository' . . . . . . . . . . . . [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 'Go Daddy Secure Certification Authority' . . . . . . . . . . . . [c:0|t:17|true] SET, SET OF . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.5.4.5 (serialNumber) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString '07969287' . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2012-09-04 14:57:19 +0000 UTC . . . . . . . . . . . . [c:0|t:23|false] UTCTime 2013-09-09 14:24:36 +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 2.5.4.10 (organizationName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.lapbandsurgicalcenter.com' . . . . . . . . . . . . [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 2.5.4.3 (commonName) . . . . . . . . . . . . . . . . . . . . [c:0|t:19|false] PrintableString 'www.lapbandsurgicalcenter.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 21541210883684190381609194517610086049758924503289873462542739687498346154740681449574748863325215226530425791507235305423858947615966528415939338691539200668760713668052404134963639588788048203848363262796867165073632957529727636965188638250397258512947048206321527879422097190526282183853410902530854773815435281010284539238716897002799882962458784471483714829313513565783105429850444216822561607833403422686814390079678296697928236253250500506969414098151457241838102495759639553147027129453410993517899423175826868838373819403638014180618344884663800517569630866084954146793521229858032564236730821531124653210407 . . . . . . . . . . . . . . . . . . . . [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 2.5.29.19 (basicConstraints) . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN true . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (5 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:1|false] BOOLEAN false . . . . . . . . . . . . . . . . [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 2.5.29.15 (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 2.5.29.31 (cRLDistributionPoints) . . . . . . . . . . . . . . . . . . . . [c:0|t:4|false] OCTET STRING (44 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.godaddy.com/gds1-75.crl' . . . . . . . . . . . . . . . . [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 (76 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 2.16.840.1.114413.1.7.23.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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 'http://certificates.godaddy.com/repository/' . . . . . . . . . . . . . . . . [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 (116 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://ocsp.godaddy.com/' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [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://certificates.godaddy.com/repository/gd_intermediate.crt' . . . . . . . . . . . . . . . . [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 fdac6132936c45d6e2ee855f9abae7769968cce7 . . . . . . . . . . . . . . . . [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 (60 bytes) . . . . . . . . . . . . . . . . . . . . . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'www.lapbandsurgicalcenter.com' . . . . . . . . . . . . . . . . . . . . . . . . . . . . [c:2|t:2|false] IA5String 'lapbandsurgicalcenter.com' . . . . . . . . . . . . . . . . [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) 4ceb268f57fd092e71a8b1d406702d23a63fc567 . . . . [c:0|t:16|true] SEQUENCE, SEQUENCE OF . . . . . . . . [c:0|t:6|false] OBJECT IDENTIFIER 1.2.840.113549.1.1.5 (sha1WithRSAEncryption) . . . . . . . . [c:0|t:5|false] NULL . . . . [c:0|t:3|false] BIT STRING (2048 bits) 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