Why Create Dedicated Forms for Widgets
It is recommended that you create a specific Contact Form for your widget and that you do not display a contact form that is also displayed within a page on your site . . .
Configuring Dynamic Contact Forms
An overview of how to configure the various settings and options for the Dynamic Contact Forms add-on . . .
Using Caching Plugins with Dynamic Contact Forms
The use of web caching plugins is extremely common these days as they can help improve the speed of delivery for static web pages as well as improve page rankings upon popular search engines.
However, in circumstances where dynamic content is being displayed on a page, web caching can cause problems.