The form on your landing page consists of a series of fields (like in our example above) that collect information in exchange for the offer. Forms are typically hosted on landing pages, although they can technically be embedded anywhere on your site. Once a visitor fills this out — voila! — you have a new lead! (That is, as long as you’re following lead-capture form best practices.)
Don't use CTAs to drive people to your homepage, for instance. Even if your CTA is about your brand or product (and perhaps not an offer like a download), you should still be sending them to a targeted landing page that's relevant to what they are looking for and includes an opt-in form. If you have the opportunity to use a CTA, send them to a page that will convert them into a lead.
Coupon: Unlike the job application, you probably know very little about someone who has stumbled upon one of your online coupons. But if they find the coupon valuable enough, they may be willing to provide their name and email address in exchange for it. Although it's not a lot of information, it's enough for a business to know that someone has interest in their company.
As mentioned before, the type of email campaign you send depends entirely on your goals with email. If you’re looking to drive direct sales then sending marketing offer and announcement campaigns are going to return the best results, however if you are simply looking to keep your existing customers up-to-date on the latest projects, products or developments at your company, then sending a regular newsletter is going to be the best way to achieve that.
If links and looks are set, begin interacting with the page. Abandon it, adjust the window size, convert. Are error messages appearing when they’re supposed to (if, for example, you don’t input all the form’s required info)? Is your CTA button working? If you abandon the page, are you retargeted with ads? When you resize the window, does your landing page respond accordingly?