Which element is NOT commonly found on a landing page?

The element that is not commonly found on a landing page is the subject line.

Landing pages are typically designed to convert visitors by providing clear and concise information about a specific offer, product, or service. They often include a hero image to create a visual impact, a headline to immediately capture the visitor's attention, and body text that elaborates on the message and persuades visitors to take action.

In contrast, a subject line is more commonly associated with email communications, where it serves to grab the recipient's attention and entice them to open the email. Since landing pages serve a different purpose—focusing on conversion rather than the initial engagement via email—subject lines are not a standard component of their design. Thus, this understanding of the purpose and structure of landing pages clarifies why a subject line is not typically present.