The verdict in three sentences
For a corporate website in 2026, WordPress is still the cheapest to start but pays its technical debt in security and performance over 3 to 5 years. A headless CMS (Sanity, Strapi, Contentful) costs more in infra (EUR 400 to 1,200/month) but delivers a 30 to 50% performance gain and much better security. The right call depends on content volume, multilingual needs and availability requirements, not on a technical preference.
Cost and performance comparison
The trap is to compare both on entry cost alone. You must reason in 3-year total cost of ownership (TCO), including infra, maintenance, security and performance loss. 2026 order of magnitude for an EN + FR corporate site of 25 pages.
| Criterion | WordPress | Headless CMS |
|---|---|---|
| Licence | EUR 0 | EUR 0 to 900/month (SaaS) |
| Hosting | EUR 30 - 120/month | EUR 400 - 1,200/month |
| Performance (Core Web Vitals) | average | +30 to 50% |
| Security | plugins to patch | reduced surface |
| Maintenance | EUR 300 - 600/month | EUR 400 - 800/month |
| Build timeline | 8 - 12 weeks | 10 - 14 weeks |
| Technical debt 3-5 years | high | low |
WordPress excels when content is simple, the team is used to it, and the budget is tight. Headless wins as soon as there is multilingual, editorial governance, or strong performance and security requirements.
3-year TCO and migration cost
Entry cost says nothing about real cost. Here is a 3-year TCO projection for an identical corporate site, excluding initial build.
| Line over 3 years | WordPress | Headless CMS |
|---|---|---|
| Hosting (avg 75 vs 700 EUR/month) | EUR 2,700 | EUR 25,200 |
| Maintenance (450 vs 600 EUR/month) | EUR 16,200 | EUR 21,600 |
| Security patches / incidents | EUR 3,000 - 8,000 | EUR 1,000 - 3,000 |
| Early redesign (debt) | likely year 4 | rare |
| Indicative 3-year TCO | EUR 22,000 - 27,000 | EUR 48,000 - 50,000 |
Migration from WordPress to headless typically costs EUR 8,000 to 20,000 depending on content volume. It is justified when technical debt blocks performance or security, not on principle.
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Mini case study
David, IT director of a services firm in London (180 staff), arbitrates the stack for a new EN + FR corporate site, 25 pages, with a Core Web Vitals > 90 requirement and an editorial workflow. WordPress would show a 3-year TCO of about EUR 24,000 but would not hold performance or governance. He chooses a headless CMS: 3-year TCO of about EUR 49,000, but +40% performance, hardened security and controlled publishing. A EUR 25,000 gap over 3 years, i.e. EUR 694/month, which he justifies by fewer incidents and the SEO gain tied to performance. Decision made on TCO, not entry ticket.
FAQ
WordPress or headless for a corporate site in 2026? WordPress if content is simple and budget tight. Headless as soon as there is multilingual, editorial governance or strong performance and security requirements.
What is the real cost gap? Over 3 years, WordPress shows an indicative TCO of EUR 22,000 to 27,000, headless EUR 48,000 to 50,000, excluding build. The gap is justified by performance and security.
Is headless really faster? Yes, generally 30 to 50% better on Core Web Vitals, because it separates content from display and serves pre-rendered pages. That is a direct SEO advantage.
How much does a WordPress-to-headless migration cost? Between EUR 8,000 and 20,000 depending on content volume and number of languages. It is justified when technical debt blocks performance or security.
Is WordPress less secure? Its attack surface is larger due to plugins that need constant patching. Headless reduces that surface, but no stack is secure without active maintenance.
Let's scope your project. Tell us your page count, languages and performance requirements: we deliver a priced TCO comparison and a stack recommendation. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
