The pitch is hard to argue with. Sign up, drag some blocks around, pick a template, and you have a website by the weekend for the price of a few coffees a month. For a certain kind of business at a certain moment, that is genuinely a good deal, and I want to be fair to the platforms before I pull them apart. They are not scams. They are just priced to look cheap at the start and quietly expensive at the point where it starts working.
Let me be clear about where they fit first, because that is what makes the rest of this credible.
Where they genuinely make sense
If you are at the very start, testing whether an idea has legs, a DIY builder is often the right answer. You do not yet know what your business needs, so paying a developer to build something bespoke would be spending money to guess. A cheap, fast site lets you validate demand: put up a few pages, run a small ad campaign, see if anyone bites. If they do, you have learned something worth far more than the subscription. If they do not, you have lost very little.
For a side project, a pop-up, a simple brochure that will never do much more than list your services and a phone number, a builder can serve you for years. No argument. The trouble starts when the business succeeds and the site has to grow with it.
The subscription stack that creeps up
The headline price is rarely the real price. The base plan gets you a site. Then you need a proper booking system, so you add an app. Then email capture, another app. Then reviews, a subscription. Then a plugin to make the SEO settings usable, because the built-in ones are thin. Each is a few pounds a month. Individually trivial, collectively a monthly bill that would have surprised you at signup.
On top of the apps, watch for transaction fees. Some platforms take a slice of every sale on their cheaper plans, on top of the payment processor's own cut. Sell enough and that percentage quietly becomes one of your larger costs, and you are paying it for the privilege of the platform being in the middle.
The ceilings you cannot raise
This is the part that costs the most and shows up the latest, because you cannot see a ceiling until you hit your head on it.
Speed. Builders load a lot of generic code so the drag-and-drop editor can work for everyone. That flexibility has a weight, and the weight lands on your page load times. You can optimise images and tidy content, but you cannot get underneath the platform to fix what the platform does. On a phone over a patchy mobile connection, that matters, and it is not something you can subscribe your way out of.
SEO. The basics are usually fine. It is the details that bite: control over how URLs are structured, how the page is marked up for search engines, how quickly it renders, whether you can add the specific structured data your industry needs. You often find the setting you want simply does not exist, and there is no one to ask for it, because the platform serves millions of sites and yours is not special to them.
Building what your business actually needs. The real limit is capability. When you need a feature that is specific to how you work, a members' area with a particular flow, a bespoke quote calculator, an integration with the software that runs your business, you discover the builder can do the common things and none of the uncommon ones. And the uncommon ones are usually where your competitive edge lives.
The migration tax
Every platform is easy to move into and awkward to leave. That is not an accident. When you outgrow a builder, you do not just rebuild the site. You have to move the content, preserve the URLs so you do not lose the search rankings you spent years earning, export data that may not export cleanly, and set up redirects so nothing breaks. It is doable, and we do it regularly, but it is a project, and it is a project you are paying for because of a decision made years earlier when the builder looked free.
The pattern is almost always the same. The platform is cheapest exactly when your business is smallest and the site matters least. It gets most expensive, in fees, in lost performance, in things you cannot build, exactly when your business is growing and the site matters most.
How to decide
Ask one honest question: is this website a placeholder or an engine? If it is a placeholder while you test an idea or run something small, a builder is a sensible, cheap choice and you should not overthink it. If the website is genuinely how you win customers, and you expect it to grow, the money you save now on a builder is usually borrowed against a bigger bill later.
If you are at the point where the ceilings are starting to show, that is the moment a proper website build tends to pay for itself, because you stop paying rent on limits and start owning something you can grow into.