Heroku provides a cloud application platform to create, run, and work with your cloud based application. Thus, Heroku is termed as PaaS (Platform as a Service). Heroku supports several programming languages like JAVA, Node.js, Python, PHP, etc. The main reason for integrating Salesforce with Heroku is to provide a sophisticated custom user interface which we can develop using JAVA, Node.js, PHP, etc.

Single Sign-On is a process that permits network users to access all authorized network resources without having to log in separately to each resource. It allows you to validate usernames and passwords against your database or other client application rather than having separate user passwords managed by Salesforce.

To protect the application data and maintain the customer trust, Salesforce Introduced Salesforce Shield. Salesforce Shield offers a powerful set of tools for any customer who needs an extra level of control to meet internal or regulatory compliance requirements. Salesforce Shield Available in Enterprise, Performance, and Unlimited Editions. Available in Developer Edition at no charge for organizations created in Summer ‘15 and later.

Mass email is a tool to send an email to a group of Leads, Contacts, Person Accounts, and Users at the Same time. This functionality is supported only for standard email field not custom email fields.

Lightning component provides a client-side framework to design mobile apps, and you can easily develop new apps for mobile devices running in the Salesforce1. Lightning component framework is built on the Aura framework, and by using the Aura framework you can build web apps hosted on your own server.

In Salesforce, the Site provides a built-in logic that helps you to display user friendly URL and links instead of complex URL and links.URL rewriting allows search engines to better index your site pages. Using friendly URLs also allows you to replace the page name and id