The verdict in three sentences
There is no best CMS in the abstract: there is the stack matched to your content volume, team size and three-year horizon. WordPress wins on speed and entry cost, headless on performance and security, custom on control and complex business processes. The classic trap is to over-invest (custom for a brochure site) or under-invest (WordPress for a high-traffic platform with heavy integrations).
Comparing the three stack families
Here are the 2026 ballpark figures on the Amsterdam market, from build to annual maintenance.
| Criterion | WordPress | Headless | Custom |
|---|---|---|---|
| Initial build | 5,000 - 12,000 EUR | 15,000 - 40,000 EUR | 30,000 - 80,000 EUR |
| Timeline | 3-6 wks | 8-14 wks | 12-24 wks |
| Licence/year | 0 - 1,500 EUR | 0 - 3,000 EUR | 0 EUR |
| Maintenance/year | 15-25% of build | 15-20% of build | 18-25% of build |
| Performance | Average | Excellent | Excellent |
| Security | Needs watching | Good | Very good |
| Editor autonomy | High | High | Variable |
Maintenance runs at 15 to 25% of build cost per year: a 30,000 EUR site therefore costs 4,500 to 7,500 EUR/year to maintain, a line often forgotten in the initial trade-off.
Decision matrix by case
Rather than reasoning by dogma, cross your profile with the optimal stack.
| Your situation | Recommended stack | Target budget |
|---|---|---|
| Brochure < 20 pages, tight budget | WordPress | 5,000 - 9,000 EUR |
| Blog + intensive SEO, editorial team | WordPress or headless | 9,000 - 20,000 EUR |
| Fast site, high traffic, brand image | Headless | 18,000 - 35,000 EUR |
| CRM/ERP integrations, business processes | Custom | 35,000 - 70,000 EUR |
| Platform/app inside the site | Custom | 50,000 - 80,000+ EUR |
In practice, 60% of the SMEs we support are well served by WordPress or headless; custom is justified when the site becomes a business tool, not just a showcase.
Mini case study
Sophie, digital director of an industrial group in Amsterdam (120 staff), hesitates between WordPress and headless for a 60-page site with a technical catalogue. WordPress would cost 10,000 EUR to build but 2,500 EUR/year in premium plugins and an estimated 3 incidents/year. Headless costs 26,000 EUR but 800 EUR/year in licences and stronger security. Over 4 years: WordPress = 10,000 + 10,000 (plugins) + 6,000 (incidents) = 26,000 EUR; headless = 26,000 + 3,200 (licence) + 800 (incidents) = 30,000 EUR, with a site twice as fast. The 4,000 EUR gap buys performance and peace of mind: she picks headless.
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FAQ
Is WordPress outdated in 2026?
No. It still powers a huge share of the web and remains excellent for brochures and blogs. Its limits show on peak performance, security at scale and heavy integrations.
Is headless always faster?
Usually yes, thanks to static rendering and CDN. But a well-optimised WordPress (cache, CDN, AVIF images) can score well; headless mainly guarantees consistency under heavy traffic.
How much is annual maintenance?
Between 15 and 25% of build cost. For a 20,000 EUR site, expect 3,000 to 5,000 EUR/year including security, updates and small changes.
When is custom truly justified?
When the site carries business processes (configurator, complex client portal, ERP integrations) that neither WordPress nor a standard headless covers cleanly. Below that, it is over-investment.
Can we switch stacks later?
Yes, but a migration costs 15,000 to 45,000 EUR. Better to pick a stack aligned with your 3-year horizon to avoid a premature switch.
Let's scope your project. Describe your page volume, integrations and team, and we'll recommend the right stack and budget. 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.
