By installing your own SSL certificate your website visitors can securely access your website.
SSL (Secure Socket Layer) is a communication protocol that ensures all data that is transmitted from your visitor's browsers to your website, hosted at iDAQ, is securely encrypted. This means all communications with your website are kept private, and you can securely receive confidential information (e.g. passwords, payment info etc..) from your visitors.
With the SSL feature you have the option to install your own SSL certificate, please see here for iDAQ's SSL products. Having you own certificate, which will be issued by a internationally trusted authority, will mean that visitors/customers can be confident they are communicating with you and not an imposter or spoofed website.