What Is a Hook in Ad Copy? Definition, Types and Examples
A hook is the opening element of an ad, whether a first line of copy, a headline, an image or the first seconds of a video, whose job is to catch attention quickly enough that the person keeps reading or watching.
People scroll fast, so most of an ad's message only lands if the opening earns a few more seconds. Common hook types include a pain-point question, a specific result or number you can substantiate, a bold or contrarian claim, a curiosity gap, a relatable situation, and social proof. In video, the hook is usually the first few seconds and combines the visual with a spoken or on-screen line.
A hook should lead into the rest of the ad, not just grab attention. Clickbait that the body does not deliver on tends to raise cost and damage trust, and misleading claims can breach platform advertising policies. Any figure or result in a hook needs to be true and supportable.
Because audiences differ, the best hook is found by testing, not guessing. Teams usually keep the offer and body constant, vary only the opening, and compare (see what-is-ab-testing-for-ads and what-is-ad-copy-testing). Hooks also wear out as people see them repeatedly, so a rotation of fresh openings helps against fatigue (see what-is-ad-fatigue).
Why it matters
Infinall AI drafts ad copy, image ads, carousels and video ad drafts from a product URL, and can produce several different opening angles grounded in its competitor research, which land in an Approval Queue for you to edit and approve before export. It does not guarantee any hook will perform, does not run or place the ads, and does not verify that claims in a hook are true for your business, so check numbers and promises before approving. Its main value here is giving you a varied set of reviewed hooks to test instead of writing each from scratch.
Related terms
Frequently asked questions
What makes a good hook in ad copy?
A good hook is specific to the audience's problem or desire, quick to understand, and honest about what the ad delivers. Questions about a real pain point, concrete outcomes you can support, and relatable scenarios are common patterns. Whatever the style, the rest of the ad has to follow through.
How do I test which hook works best?
Keep the offer, image and call to action the same and change only the opening line or first seconds. Run the versions at the same time to similar audiences, wait for enough results, and compare click-through and conversion. Small samples can mislead, so avoid declaring a winner too early.