A self-signed SSL certificate is very similar to a signed certificate. Both of the certificates will provide a secure encrypted connection to transfer data. The main difference is when using a signed certificate you are having another company verify that your website and business are legitimate. When you use a self-signed certificate, you are saying to your visitors “trust me – I am who I say I am.” When you use a Signed Certificate, you are saying, “Trust me – 'Company' agrees I am who I say I am.”
We suggest that if your website is selling products or services, i.e. you are getting confidential information like credit cards or PayPal details, you use a signed certificate.
If you are setting up an SSL so that your visitors can enter login information or collecting personal (non-financial) information you will be ok following the steps below to set up a self-signed SSL certificate.