1. Start with intent: search vs. social
The biggest factor in ad copy isn't the words — it's where the ad appears, because that determines what the reader is doing.
- Search ads (Google): the person is actively looking for a solution. Your job is to match their query and prove you're the most relevant result. Echo their search terms; be specific.
- Social ads (Meta): the person is scrolling, not searching. Your job is to interrupt with something relevant enough to stop the scroll — a hook, a pain point, a striking benefit — before you ask for anything.
Same product, two different opening moves. A search ad leads with the answer; a social ad leads with the hook.
2. Lead with the benefit, back it with proof
Whatever the platform, the reader is asking "what's in it for me?" Lead with the outcome, then support it with a reason to believe — a number, a guarantee, a specific feature. Google's own best practices for effective search ads stress exactly this: craft messaging around user benefits and tie it to what people are actually searching for.
Compare:
- Weak: "We sell project management software."
- Better: "Ship projects on time — trusted by 12,000 teams."
The second leads with the outcome ("ship projects on time") and backs it with proof ("12,000 teams").
3. Write a specific call-to-action
A vague CTA wastes the click you worked to earn. "Learn more" is forgettable; tell the reader exactly what happens next and why it's worth it. "Start your free trial," "Get a quote in 60 seconds," "Download the free guide" all set a clear expectation. Specificity also pre-qualifies clicks — "Get a quote" attracts buyers, not browsers, which keeps your cost-per-conversion down.
4. Write many variations, not one perfect ad
You can't reliably guess the winning ad — the platforms are built to test for you, but only if you give them options. Google recommends supplying many headlines and descriptions per responsive search ad so the system can assemble and find the strongest combinations; advertisers who raise their Ad Strength from "Poor" to "Excellent" see meaningfully more clicks and conversions on average.
So write 8–10 headline angles: benefit, social proof, urgency, a question, the offer, the differentiator. Don't polish one line to death — give the algorithm raw material and let performance decide.
5. Match the ad to the landing page
The click is a promise; the landing page has to keep it. If your ad says "50% off running shoes," the reader should land on running shoes at 50% off — not your homepage. This "message match" lifts conversion rates and, on search, improves your quality/relevance signals, which can lower what you pay per click. The headline, the offer, and the visual the reader saw in the ad should all be the first things they see on the page.
6. Ad copy mistakes that waste budget
- Talking about yourself. "We are a leading provider…" The reader doesn't care yet. Lead with them.
- Being vague to seem broad. Trying to appeal to everyone appeals to no one and attracts unqualified clicks you pay for.
- One ad, set and forget. No variations means nothing to optimise.
- No clear next step. If the reader has to wonder what to do, they'll do nothing.
- Overpromising. Clickbait gets the click and loses the customer — and tanks your conversion rate.
Writing eight strong, distinct variations by hand is the tedious part — that's where a generator earns its keep, giving you headline, primary text and CTA options sized for each placement that you can then refine.
Generate ad copy for Google & Meta
Enter your product, audience and offer to get short-form ad variations — headline, primary text and CTA — sized for Google and Meta placements. Free, no signup.
Before you spend on clicks, make sure the numbers work: our guide on headlines that convert sharpens the hook, and you'll want to track every campaign with the UTM Link Builder so you know which ad actually paid off.