Repeat the promise
If the ad leads with a specific product or offer, make that visible when the visitor arrives. A generic homepage can interrupt the story and make people search for what they expected to find.
Keep the visual thread
Use consistent product imagery, tone and visual cues. Consistency helps people recognise they are in the right place; it does not mean every page section needs to repeat the ad.
Answer the next question
The ad earns attention. The page should explain the detail people need to act: product fit, the offer conditions, trustworthy information and the next step. Do not replace useful answers with unsupported claims.
Check the whole journey on a phone
Open the actual destination from the intended placement. Check that the page loads, text is readable and the next action works. Creative, page experience and campaign delivery are a connected system.