WordPress powers around 40% of all websites on the internet. That statistic gets thrown around a lot — usually to justify recommending it. But market share doesn't mean it's the right choice for every business. Here's an honest look at both options, written by an agency that builds on both platforms.
What is WordPress?
WordPress is an open-source content management system (CMS). It was originally built for blogging but has evolved into a general-purpose platform capable of powering anything from a simple service site to a full eCommerce store. It's free to install, runs on standard hosting, and has a vast ecosystem of themes and plugins.
What most people mean when they say "WordPress website" is a site built on WordPress using a page builder like Elementor or a premium theme — customised to look unique but built on shared scaffolding.
What is Custom Web Design?
A custom-built website is designed and coded specifically for your business — no off-the-shelf theme, no page builder framework. The design starts from a blank canvas, and the code is written to match exactly what the site needs to do. It may use a lightweight framework or be entirely bespoke.
Side by Side
- Familiar admin panel — easy for non-technical users to edit content
- Huge plugin library — most features exist off the shelf
- Lower upfront cost for straightforward sites
- Large talent pool if you need to change agencies
- WooCommerce built in for eCommerce
- Can get bloated — plugin stacking hurts performance
- Regular security updates required (it's a major attack target)
- Design is constrained by what the theme allows
- No design constraints — built exactly to spec
- Faster page speeds — no unused code or plugin overhead
- Smaller attack surface — no CMS to exploit
- Lower ongoing maintenance burden
- Scales precisely with your needs
- Higher upfront cost
- Content editing requires more technical comfort (or a lightweight CMS layer)
- Tied more closely to the original developer's decisions
The Performance Question
This is where custom builds consistently win. A WordPress site with 15 plugins, a heavyweight theme, and a page builder typically scores 50–70 on Google PageSpeed. A lean custom build — same design, same content — regularly scores 90+. That matters for SEO, for conversion rates, and for how your site feels on a mobile connection.
WordPress can be made fast — but it requires deliberate optimisation work, careful plugin choices, and ongoing attention. Left to default behaviour, it's not fast.
The Security Question
WordPress's popularity makes it a prime target. The vast majority of hacked websites run WordPress — not because WordPress is inherently insecure, but because outdated installs and vulnerable plugins are everywhere. If you go the WordPress route, you need a maintenance plan: regular core and plugin updates, good hosting, and backups. This isn't optional; it's the ongoing cost of running the platform.
A custom build with no CMS has a much smaller attack surface. There's nothing to exploit if there's no login page and no plugin ecosystem.
The Content Editing Question
WordPress wins here for most business owners. If you want to log in and add a blog post, change a price, or update an image without calling a developer, WordPress makes that easy. A custom site can offer the same through a headless CMS (like Contentful or Sanity), but it adds cost and complexity.
If your site doesn't change much — a service site, a portfolio, a local business presence — this advantage matters less than you might think. Most small business sites are updated a handful of times per year.
Our Honest Recommendation
Choose WordPress if: you need to update your own content frequently, you want eCommerce via WooCommerce, your budget is tighter and speed-to-launch matters more than peak performance, or you need a wide range of features quickly.
Choose a custom build if: your website is a primary conversion tool and performance matters, you want a genuinely distinctive design, your security requirements are higher than average, or you're building something with specific functionality that plugins can't cleanly solve.
At Jazz Creative, we're honest about which approach suits each project — we don't have a preferred platform. Some clients are better served by a well-built WordPress site; others need a custom build from the ground up. Talk to us and we'll tell you which one makes sense for your situation.
Further reading:Squarespace vs custom web design • What makes a good website in 2026? • How much does a website cost in Portsmouth?