A landing page is a dedicated website page that is focused on a specific goal like getting someone to join a newsletter or make a sale.
There are a number of services that allow you to just create a landing page for your business. They are reasonable priced and have many tools and features that make it easy to create the sales experience.
But, should you use one of these services instead of building a landing page on your website? First, if you don’t have a website, then a landing page solution would be appropriate. However, most businesses should have a website even if it is just one page. So, a landing page should be part of your website because it looks like part of your business and doesn’t confuse people with different domain names and branding appearance.