It's a common mistake that seems harmless: creating an ad about a specific offer or product, and sending all the traffic to the website's general homepage. The result is almost always worse performance than the campaign deserved.
Why the homepage isn't a good landing page
The homepage is designed for any visitor, with any intent: browsing, researching, comparing. Someone arriving from an ad about a specific offer expects to see that offer immediately, not have to search for it among generic menus and sections.
What a specific landing page should have
It should reflect exactly what the ad promised (same product, same price, same offer) with a single clear action to take (buy, leave details, book), without the distractions of a full navigation menu inviting people elsewhere.
Consistency between ad and landing page is key
If the ad says "20% off your first purchase" and the person lands on a page that doesn't mention that discount anywhere visible, a sense of distrust appears immediately. The more closely the ad's message and the destination page's message match, the better that combination converts.
One landing page per campaign, not a generic one for all
Each campaign with a different message should have its own landing page consistent with that specific message, instead of always reusing the same generic "contact" page for every ad, which rarely reflects the specific offer that attracted that person.
Frequently asked questions
Do I need to build a new landing page for every small campaign?
Not always from scratch: you can start from a base template and adapt the main message, offer and images for each campaign, without redesigning everything from the ground up every time.
Doesn't a landing page without a navigation menu isolate the visitor too much?
That's precisely the goal: reducing distractions that pull them away from completing the action that brought them there. You can always include a discreet link back to the main site, without it being the focal point.
How much does conversion actually improve by using a specific landing page instead of the homepage?
The improvement varies by case, but it's common to see noticeable gains in conversion rate simply by removing the friction of having to hunt for the offer inside a generic website.