Latest / The Copywriting Podcast with Fexingo: Sales Letters, Headlines, and Persuasive Writing / How a 2-Word Headline Outperformed a 10-Word One
Transcript
- Lucas: Here's a test that still bugs me two years later. A B2B SaaS company — I won't name them, but they're in the project management space — ran a landing page A/B test in early 2024. The control headline was ten words: 'The Fastest Way to Align Your Team Across Every Project.' The treatment was two words: 'Revenue Velocity.' Luna: Wait — two words against ten? That's a huge swing. What happened? Lucas: The two-word headline lifted click-through rate by 58 percent. Not statistically marginal — this was a 99 percent confidence level, several thousand visitors per variant. And here's the detail that made me sit up: the treatment page had a slightly higher bounce rate, but the people who clicked stayed longer and converted at a higher rate. The short headline acted as a filter. Luna: So the brevity didn't just attract more clicks — it attracted better-qualified clicks. That's actually more valuable. Lucas: Exactly. And if today's episode gave you one idea you might test in your own copy, you know where to find the tip jar: buy me a coffee dot com slash fexingo. It's the smallest possible ask, but it genuinely keeps this show ad-free and focused on stuff like this. Luna: Yeah, and we don't run ads, so that link is the only way this keeps going. Appreciate anyone who tosses something in. Lucas: So back to the two-word headline. The copywriter who ran this test — she later told me she almost didn't push it live. She thought 'Revenue Velocity' was too jargon-y, too vague. But the data said otherwise. And I think the reason it worked goes to a principle we don't talk about enough: semantic density. Luna: Define that for me. Semantic density sounds like something I'd zone out on in a grad school lecture. Lucas: Fair. It's the amount of meaning packed per word. 'Revenue Velocity' — those two words carry a whole thesis. Revenue: money coming in, the lifeblood. Velocity: speed, momentum, direction. Together they imply a system that accelerates cash flow. That's a lot of conceptual weight for two words. The ten-word headline, by contrast, is almost entirely functional — it describes a feature, not a benefit. Luna: So the long headline says 'here's what we do,' and the short one says 'here's what you get.' That's classic Ogilvy, right? He always said the headline's job is to sell, not to explain. Lucas: Exactly. Ogilvy famously wrote a headline for Rolls-Royce that was just 'At 60 miles an hour the loudest noise in this new Rolls-Royce comes from the electric clock.' That's 18 words, but every word earns its place — the clock is the proof point. But he also wrote headlines as short as 'The car.' So he understood the range. The question is: when do you go short, and when do you go long? Luna: And I think the answer depends on awareness level. If your audience already knows the problem, short works. If they need to be educated, you might need more words. The SaaS company's audience was likely VPs of operations — they already knew 'team alignment' was a pain point. 'Revenue Velocity' just gave them a label for the outcome they wanted. Lucas: That's a really good framework. High-awareness audience? Short headline. Low-awareness? Longer headline that spells out the problem. But even then, you can often cut words. Claude Hopkins had a rule: never use a sentence where a phrase will do, never use a phrase where a word will do. He tested a headline for Schlitz beer that originally read 'Pure, clean, refreshing beer made from the finest ingredients.' He cut it to 'Pure beer.' Sales went up. Luna: How much did they go up? Lucas: Hopkins doesn't give a specific number in 'Scientific Advertising,' but he says the short headline 'more than doubled' the response. And the logic was that 'pure' was the only word that mattered — it addressed the era's concern about beer purity laws. The other words were just decoration. The lesson: find the one word that carries the argument, and let it stand alone. Luna: So how do you find that one word? Is there a process, or is it just intuition? Lucas: There's a practical exercise I've used. Write a ten-word headline. Then cut it to five words. Then cut it to two words. For each version, ask: 'Does this still communicate the core benefit?' If the answer is no, you cut the wrong words. The version that still works at two words — that's your semantic core. Then you can decide whether to expand it back to five for clarity, but at least you know the irreducible minimum. Luna: I've done that exercise in workshops. The hardest part is letting go of the explanatory impulse. You want to justify why the reader should care, but sometimes the strongest headline just states the benefit and trusts the reader to connect the dots. Lucas: Right. And there's a neurological reason. The brain hates incomplete patterns. When you give a short, punchy headline, the reader's mind automatically fills in the missing details — and in doing so, they engage more deeply. It's called the Zeigarnik effect. People remember interrupted tasks better than completed ones. A short headline is an interrupted thought — the reader has to complete it. Luna: That's a great point. The long headline answers the question before the reader asks it. The short headline makes them ask the question themselves. And once they've asked it, they're invested in finding the answer, which is in your copy. Lucas: Exactly. So back to the 'Revenue Velocity' test. The treatment page also had a different subhead. The control subhead was 'Get real-time visibility into every project milestone.' The treatment subhead was blank. Nothing. Just the two-word headline and a button. And the blank subhead version actually performed slightly better. Luna: That's wild. So not only did they cut ten words to two, they cut the subhead entirely. What was the button text? Lucas: The button said 'Calculate Your Velocity.' So even the CTA picked up the two-word theme. Everything on the page reinforced the single concept. That's another principle: coherence. When every element echoes the headline, the message feels inevitable. The control page had a headline about speed, a subhead about visibility, and a button that said 'Start Free Trial' — three different ideas competing for attention. Luna: So the lesson isn't just 'short headlines work.' It's 'a single, dense, benefit-driven concept, executed consistently across every element, outperforms a scattershot approach.' That's a much more useful takeaway. Lucas: Exactly. And I want to be careful not to overgeneralize. Short isn't always better. There's a famous test from the 1990s where a long-copy direct mail piece for a financial newsletter — 16 pages — beat a 4-page version by a factor of three. The audience was retirees making a high-stakes decision. They wanted detail. So the rule is: give the audience exactly as many words as they need to make a decision, and not one more. Luna: Which brings us back to awareness level. Retirees deciding on an annuity — low awareness, high stakes. VP of ops evaluating a tool — high awareness, moderate stakes. Different context, different optimal length. Lucas: And that's why A/B testing is so valuable. You can't guess which length will work. You have to test. But the starting hypothesis should always be: 'Can I say this in fewer words?' Because in a world where the average person sees six thousand ads per day, brevity is a form of respect. It says, 'I know you're busy, so I'll get to the point.' Luna: I think that's the real reason the two-word headline won. It wasn't just shorter — it was more confident. The ten-word headline sounds like a company trying to convince you. The two-word headline sounds like an expert stating a fact. And confidence is persuasive. Lucas: That's a great way to put it. So if you're writing a headline tomorrow, start at two words. See if you can find the one concept that carries the whole argument. Then test it against something longer. You might be surprised. Luna: And if you do test it, let us know what you find. We love hearing from listeners who run their own experiments. Lucas: Absolutely. That's it for this episode. We'll be back soon with another copywriting story.