Most vague value propositions were approved by a room full of people who all agreed with them, which is exactly how they ended up vague. A line such as "The smarter way to run your business" survives review because nobody can object to it: it doesn't exclude a customer segment, it doesn't commit the product to anything the engineers might dispute, and it doesn't make a claim the sales team will be asked to prove. Every reviewer reads their own meaning into it, signs off, and the page goes live with a headline that a stranger can't use to decide anything.
That is why rewriting the sentence rarely fixes it. When a value proposition is vague, the words are usually covering for a decision the company hasn't made yet, such as who the product is really for, what it replaces, or which of its twelve features is the reason people buy. A copywriter can make the vague version sound better, but they can't make it specific until someone decides what it should be specific about. This guide covers what a value proposition needs to tell a new reader, the five most common reasons it goes vague, and how to diagnose the problem before you start editing.
What a value proposition has to tell a stranger
A value proposition is the short answer to the question every new visitor is silently asking: why would someone like me choose this over what I'm doing now? On most websites it lives in the hero headline and the line beneath it, although it also shapes the page title, the meta description and whatever your sales team says in the first minute of a call. It is not a tagline, and it doesn't need to be clever, but it does need to survive being read quickly by someone who has never heard of you.
That speed matters more than most teams expect. Nielsen Norman Group's analysis of how long users stay on web pages found that visitors often leave within 10 to 20 seconds, while pages that communicate a clear value proposition can hold attention for much longer. In practice, a useful value proposition answers four things within that window: what the product is, who it is for, what it replaces or improves on, and why the reader should believe the claim. You don't need all four in the headline, since the supporting line and the first proof point can share the load, but if one of them is missing from the entire first screen, that gap is usually where the vagueness comes from.
If you want a quick first-screen check before going further, item 5 of our homepage copy audit checklist asks whether the value proposition is specific enough to picture. The rest of this guide is about what to do when the answer is no.
Five reasons value propositions go vague
Each of the causes below produces copy that reads smoothly and says very little, but they have different fixes, so it helps to name the cause before reaching for a rewrite. The examples are for fictional companies, although you will probably recognise the "before" versions from real websites.
1. It describes an outcome without a mechanism
The most common vague value proposition promises a result and skips the part where the product produces it. Outcomes are important, because they are what the reader ultimately wants, but an outcome on its own is a claim every competitor can make, and the reader has no way to judge whether yours is more believable than theirs.
Before: Close your books faster, every month.
After: Match bank transactions to invoices automatically, so month-end starts with the handful that didn't match instead of the whole ledger.
The second version is longer, but it tells a finance manager what the software actually does and why that would make the close faster, which gives them something to test against their own process. Notice that the outcome hasn't disappeared: it now arrives as a consequence of the mechanism, which makes it much easier to believe.
2. It never says "compared to what"
Every value proposition is a comparison, whether or not it says so, because a reader can only judge "faster" or "simpler" against the thing they currently use. Positioning consultant April Dunford argues that the starting point for positioning is the competitive alternatives, meaning whatever a customer would do if your product didn't exist, and she points out that the alternative you most often need to beat is the status quo rather than a rival company. For a lot of small software products, the real competitor is a spreadsheet, a shared inbox or a group chat.
Before: Staff scheduling, made simple.
After: Build next week's roster in one place instead of a group chat, and let staff swap shifts without texting you at 10pm.
"Made simple" leaves the reader to work out what it is simpler than, while the rewrite names the alternative and the specific annoyance it removes. A café owner reading the second version knows immediately whether this is their problem, which is far more useful to both of you than a line that every scheduling tool could put on its homepage.
3. It tries to include everyone
Phrases such as "for teams of all sizes", "for modern businesses" and "whatever your industry" usually appear because someone was worried about losing a segment. The irony is that a line written to exclude no one tends to persuade no one either, because readers look for signs that a product was built for people like them, and a universal audience gives them nothing to recognise.
Before: Financial clarity for growing businesses.
After: Monthly bookkeeping for tradespeople who would rather be on the tools than sorting receipts on a Sunday night.
The rewrite does turn away some readers, including a SaaS founder who might have been a perfectly good customer, but it makes the offer instantly recognisable to the people it is for. If you genuinely serve several distinct audiences, the better answer is usually a focused homepage with separate pages for each segment, rather than a headline stretched thin enough to cover all of them.
4. It lists everything the product does
"All-in-one" is often a sign that the team couldn't agree on which feature matters most, so it chose not to choose. A value proposition that tries to name five capabilities ends up as a feature inventory with no hierarchy, and the reader is left to work out which one is the reason to buy, which is precisely the job the headline was supposed to do for them.
Before: Projects, docs, chat, time tracking and invoicing in one powerful platform.
After: Send the invoice from the same place you logged the hours, so nothing billable gets lost between tools.
The rewrite still implies that several tools have been combined, but it picks the one consequence that customers care about most and leads with it. The other features haven't been deleted, because they still belong further down the page, where a reader who is already interested will go looking for them. Choosing the lead is often an internal argument rather than a writing task, which is exactly why it gets avoided, and why the headline stays vague until someone settles it.
5. It borrows certainty it can't back up
Plenty of value proposition advice tells you to add numbers. HubSpot's guide to writing a value proposition, for example, recommends including quantifiable benefits whenever possible, and a real, sourced figure really can make a claim more concrete. The trouble is that teams under pressure to be specific often reach for a percentage they can't substantiate, and "Cut onboarding time by 50%" becomes a promise the product may not keep for most customers, which damages trust with exactly the careful readers you most want to convince.
Before: Cut onboarding time by 50%.
After: New starters get their laptop, accounts and first-week plan before day one, all set up from a single checklist.
Specificity doesn't require numbers. Most of the work is done by concrete nouns and verbs that describe what happens, such as a laptop, an account, a checklist and a first day, and those details are harder to fake than a round percentage because the reader can picture them. When you do have a number, give it its source or context nearby, and when you don't, describe the work instead of inventing a figure to stand in for it.
Diagnose the line before you rewrite it
Because each cause has a different fix, it is worth reading your current value proposition against a few questions before anyone opens a blank document. Ask whether a stranger could say what the product does after reading it once, whether they could tell if they are the intended customer, whether it names or clearly implies what the reader would otherwise be using, and whether any number or superlative in it could be backed up if a prospect asked. Then try the logo test from our website copy audit guide: put a competitor's name above the line, and if it still works perfectly, you are describing the category rather than your company.
A simple fill-in exercise can make the missing decisions obvious. Write the sentence "We help [a specific reader] [do a specific thing] instead of [what they use now], because [how the product does it or why it is believable]", and fill in each blank honestly. This is a working tool rather than finished copy, and Dunford herself is sceptical of teams that treat a positioning statement as though it were the positioning, but the blanks you can't fill are a precise map of where your headline is vague. If the team can't agree on the third blank, for example, no amount of rewording will make the headline say what the product replaces.
Once every blank has an answer, the public line usually becomes much easier to write, because the writer is now choosing how to phrase a decision rather than trying to make an absence of one sound confident. You might not use all four answers in the headline, and you shouldn't try to cram them in, but each one should appear somewhere on the first screen.
Accept that a specific line can be wrong
The main reason teams resist a specific value proposition is that it can be disagreed with, which is also the main reason it works. A line that names an audience turns some people away, a line that names an alternative invites comparison, and a line that describes a mechanism can be checked by anyone who signs up. Vague copy feels safer because it can never be proven wrong, but for the same reason it can never be proven right, and a reader has no reason to trust a promise that commits to nothing. Conversion Rate Experts make a similar point in their work on value propositions, arguing that plain language describing what a product actually does almost always beats branded wording, particularly for products that are hard to explain.
This is also where vagueness overlaps with sounding generic. Many of the phrases that make copy sound AI-generated or templated, such as "unlock", "seamless" and "powerful", are really the same problem: words that could be attached to any product because they don't describe this one. Replacing them with synonyms doesn't help, since the fix is to say the thing the word was standing in for.
Check that the rest of the page agrees
A sharper value proposition can create new problems further down the page if the rest of the copy was written for the old, vaguer version. Read the subheadings, the feature descriptions and the proof points against the new line, and look for sections that still promise something broader or different, because a reader who believes the headline and then finds a page about something else will trust neither. The button matters too: if the headline now makes a specific promise, the call to action should describe the specific next step, and our guide to weak CTA examples covers how to match the label to what happens after the click.
For a fuller review of how the value proposition, evidence and next step work together, use our guide on how to audit your website copy line by line, which also covers how to decide which findings to fix first. The value proposition usually belongs at the top of that list, since every visitor reads it and uses it to interpret everything else on the page.
Revisi can do the first pass for you. Paste a page URL and the free scan flags the lines that are too vague to picture, including value propositions that describe an outcome without saying how you deliver it, with the reason beside each finding. No account needed, and results take about 30 seconds.