WordPress vs Headless CMS
Two ways to give your team control of content — here's what actually differs, and how Wave18 chooses between them.
WordPress and headless CMS are both ways to give non-technical teams control over website content, and Wave18 builds on both — the right choice depends on how much editorial freedom you need versus how much front-end flexibility your design and performance goals demand. WordPress is a familiar, all-in-one CMS: the editor and the front end live together, which makes it fast to set up, and Wave18 manages it hardened, kept up to date and tuned for Core Web Vitals rather than left to a pile of plugins. A headless CMS — Strapi, Contentful or Sanity — separates content from presentation entirely, giving developers full control over a front end usually built on Astro or Next.js, while editors get a clean, purpose-built interface. Both can be fast and accessible when built properly; the table below compares cost, launch time, flexibility, editor experience and who each fits best.
Last updated: July 2026
How do they compare?
| Criteria | WordPress | Headless CMS |
|---|---|---|
| Cost model | Typically fits our Launch tier, from £5,000, fixed scope, for standard marketing sites. | Usually a larger build — most headless projects fall under our Growth tier, from £15,000. |
| Time to launch | Fast — mature theme and plugin ecosystem covers most standard site needs out of the box. | Slightly longer setup (content modelling + custom front end), with no platform ceiling to grow into. |
| Flexibility | Good within WordPress's templating model; deep custom front-end work means working around the platform. | Full control — the front end is a custom Astro or Next.js build, unconstrained by CMS templating. |
| Editor experience | Familiar block editor most content teams already know, with full control over day-to-day content. | Clean, purpose-built editing interface (Strapi, Contentful, Sanity), separate from the front-end code. |
| Maintenance & security | Needs active hardening, patching and plugin management — Wave18 manages this as a standard offering. | Smaller attack surface than a plugin-heavy CMS — the API layer and front end are maintained separately. |
| SEO & performance | Strong plugin-based SEO tooling; performance depends on hosting, theme quality and plugin discipline. | Best-in-class performance ceiling — static-first builds routinely hit 95+ Lighthouse and sub-1s LCP. |
| Best for | Teams who want a familiar, all-in-one CMS and don't need a fully custom front end. | Content teams at scale, or any site where front-end performance and design freedom matter most. |
So, which should you choose?
Choose WordPress if…
- You want a familiar editor your team already knows how to use.
- You're building a standard marketing site, not a bespoke front end.
- You want a smaller, fixed-scope budget (Launch tier, from £5,000).
Choose headless CMS if…
- Front-end performance and design freedom are top priorities.
- Your content team publishes across multiple channels or products.
- You can justify the larger, longer-term investment (Growth tier, from £15,000).
Still not sure? We build custom sites on Astro or Next.js, manage secure WordPress builds when a CMS fits best, and work with headless platforms for content teams at scale. Talk to us about your content model and we'll recommend the right fit.