Message Mismatch Between Ad and Page
The single most common cause of poor landing page performance is a disconnect between what the ad promises and what the page delivers. A paid search ad for "commercial office cleaning London" that lands on a generic cleaning services homepage has broken the message match. The visitor expected a page that confirmed their specific need. They got a page about the business. The cognitive load of finding relevance on a mismatched page is high enough that most visitors simply leave. Message match is not a cosmetic concern — it is the foundational conversion requirement for any paid traffic landing page.