Website development services cover the technical build behind a site, the part that makes it actually work, not just look right. Design and development get lumped together a lot, but they’re different jobs, and knowing the difference helps you ask for the right thing when you’re bringing someone in.
Design versus development
Design is the look, the layout, the colours, the user experience, how a visitor moves through the site. Development is what makes that design function, the code, the platform it’s built on, the way forms submit, pages load, and data gets stored and processed. A lot of smaller agencies do both under one roof, but larger or more technical projects sometimes need development handled separately, especially if there’s custom functionality involved beyond a standard brochure site.
What development work actually covers
Setting up the platform itself, whether that’s WordPress, Shopify, or something custom built, and making sure it’s configured properly rather than left on default settings. Building out functionality that goes beyond standard pages, booking systems, membership areas, custom forms, calculators, anything that needs actual logic behind it rather than just content and layout.
It also covers integrations, connecting the site to other tools the business already uses, a CRM, an email platform, a payment processor, a booking system, so information flows between them instead of someone manually copying data across. And it covers performance and security, making sure the site loads quickly and isn’t left exposed to basic vulnerabilities that get exploited constantly across the web.
Ecommerce development specifically
Ecommerce sites need more development attention than a standard site. Product catalogues, variants, stock levels, checkout flow, payment gateway integration, shipping calculations, all of that needs to work correctly and reliably, because a broken checkout costs actual sales in real time, not just traffic. Platform choice matters here too, Shopify, WooCommerce and others each suit different business sizes and needs, and getting that choice wrong early can mean a costly rebuild later.
Ongoing development support
A site isn’t finished the day it launches. Plugins and platforms need updating, new features get requested as the business grows, and things occasionally break, a plugin conflict, a hosting issue, a broken integration after another tool changes its system. Ongoing development support means someone’s available to fix and extend the site after launch, rather than the business being stuck once the original developer has moved on.
Worth asking upfront whether that support is included, billed hourly, or a separate retainer, because “the site’s finished” and “the site’s fully supported long term” are two different things.
When this isn’t right for you
If you just need a simple few-page site with no custom functionality, a strong design-and-build service from an agency using page builders like Elementor covers most of what you need, and paying for dedicated development on top is unnecessary. Custom development earns its cost when the site needs to do something a standard template genuinely can’t handle.
Understanding what development actually covers means you can have a clearer conversation with whoever builds your site, about what’s included, what counts as a change request later, and what ongoing support actually looks like once the site is live.
How to choose between platforms
WordPress suits most content-driven sites and blogs, and gives good flexibility without needing custom code for most needs. Shopify suits ecommerce specifically, it’s built for selling and handles a lot of the technical heavy lifting around payments and inventory out of the box. Custom-built sites make sense when the business needs something genuinely unique that no existing platform handles well, though that route costs more and takes longer.
There’s no universally right answer, it depends on what the site needs to do, how much it’ll grow, and who’s going to be maintaining it day to day once it’s live.
