What Is a Footer?
A website footer is whats at the bottom of the website just like the header is found on the top of the website. The footer usually has stuff like copyright and social network info and sometimes contact and more about info. If a website has a newsletter you can usually find the sign up on the footer, or if there are pages you don't see on the header like a blog you might find it on the footer.
Why Is a Footer Important?
Website footers are important because people look at the footer as much as the header. If it is a news article when people finish reading the footer is right there and they probably look at that next.
Examples of Website Footers