Usually because something on the site stops interested visitors from buying. When people arrive but don't buy, the cause is almost always one of six measurable problems: it's slow on phones, it shuts some visitors out, it can't be found for the searches that matter, it doesn't look safe, it goes quiet at the moment people decide to buy, or nobody vouches for it. You can check each one yourself.
When sales dry up, owners usually hear one of two pitches. "You need more traffic," so buy ads. Or "you need a redesign," so buy a website. Either can be right, and both tend to arrive before anyone has diagnosed anything. Below are the six lenses The Grader uses, turned into symptoms you can spot today without any tools.
Lens 1 · Speed, the silent checkout killer
Your site is slower on a real phone than you think
You see your own site on fast wifi with everything cached, which is the best it will ever perform. Customers meet it cold, on a phone, often on a weak signal. A slow page rarely draws a complaint. It draws the back button.
Spot it yourself: turn off wifi and open your busiest product or service page on your phone. Count the seconds until you could tap "buy." If you got impatient, so will strangers who owe you nothing.
Lens 2 · Accessibility, and the customers you never see leave
Some visitors can't use your site at all
Faint text, buttons that ignore the keyboard, images with no description and forms with no labels each turn away real customers, along with the households they buy for, and add legal risk on top.
Spot it yourself: add a product to your cart using only the Tab and Enter keys. If you get stuck, so does a meaningful share of your visitors. Our plain-English ADA check goes further.
Lens 3 · Findability, and the buyers who search but never see you
You rank for your name, but not for your problem
Most small-business sites turn up for people who already know the business exists. They vanish for the searches buyers make, like "[what you sell] near me" or "best [category] for [need]". AI assistants are part of this now: they answer the question themselves and tend to name businesses whose sites they can read and check. That newer half of findability has its own guide: What is AEO?
Spot it yourself: open a private browser window and search for the problem you solve, leaving your name out. If you don't appear, this lens is costing you customers who were already looking.
Lens 4 · Security signals, where the browser gets a vote
A "Not secure" warning can end the purchase on the spot
An expired certificate, a "Not secure" label or a checkout that suddenly looks nothing like the rest of the site gives a customer every reason to close the tab. Browsers flag pages that aren't encrypted, and payment providers such as Stripe require HTTPS before a page can take live card payments.
Spot it yourself: watch the address bar at every step of your checkout. A warning, a "Not secure" label or a sudden jump to an unfamiliar domain is where trust drains away.
Lens 5 · Trust, parked where the buyer can't see it
You have credibility. It just isn't where doubt peaks.
It's an easy pattern to miss from the inside. The business has real credentials (warranties, policies, years of service) and buries them in the footer, while the product page, where people decide, shows none of it. Doubt peaks at the buy button, so the reassurance belongs there too.
Spot it yourself: open your key product page as if you'd never heard of the business. Within one screen of the buy button, what tells a stranger it's safe to buy? A returns policy? A guarantee? Real reviews? If the answer is "nothing," you've found the leak.
Lens 6 · Reputation, when nobody vouches for you
Buyers believe other people before they believe you
Missing reviews, an unclaimed business profile or a one-star complaint nobody answered can settle the decision before your site even loads. Your reputation is the second website every buyer visits.
Spot it yourself: search "[your business] reviews." Whatever a stranger finds in ten seconds is your real first impression.
Measure and fix before you think about a redesign
Ad spend multiplies whatever your site already does, leaks included. A redesign replaces the container and can leave the contents as broken as before. The order that works is cheap and boring: measure the six lenses, fix the ranked problems, then decide whether you need more traffic or a new design at all. A site that isn't selling usually needs a few specific repairs, not a reinvention.
A word on evidence. The self-checks above are estimates, and a real diagnosis is measured. When we grade a site, every number carries a Measured or Estimated label, and we never dress one up as the other. See how the grading works.
Questions owners ask when the site won't sell
My website gets traffic but no sales. What's wrong?
If the visitors are the right people, traffic without sales usually means the problem is on the site, because the marketing is already doing its job. The usual suspects are slow mobile pages (Lens 1), no reassurance next to the buy button (Lens 5) and a confusing or broken path to purchase. Walk your own checkout on a phone, as a stranger would, before you spend another dollar on ads.
Should I redesign my website if it isn't converting?
Usually not as the first move. Most conversion problems are specific and fixable: a slow product page, a broken shipping block, missing reviews. A redesign can carry the same problems into a prettier wrapper. Measure first, fix the ranked problems, and redesign only if the structure itself is what's broken.
How do I find out what's broken on my site?
Get a measured reading instead of a guess. That means timing the site on a phone connection, checking accessibility, reading your search visibility and walking your buying path as a stranger. The Grader gives you that first pass free, across all six lenses, in plain English. It runs in sample mode while live scanning rolls out.
See your own site through all six lenses
The grade is free, takes minutes and is written for owners, with every number labeled Measured or Estimated. The engine runs in sample mode while live scanning rolls out.
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