Leave out those “Again” fields

Many sites add two fields for some information. This is done for verification, usually to catch typos. If the user somehow mistyped their email address, this second form will catch that and allow the user to fix it.

However, this usually isn’t really necessary. You can put an automatic verification system on the form that checks whether the information filled in is a valid email address. Use one of those instead.

With that there’s still a chance the user may mistype the first part of the email address, but realistically that only happens rarely. It’s usually a best practice to have as little form fields as possible, and experience teaches us that omitting that “Again” field is usually better for your conversion rate.