For nearly two decades, WordPress was the default choice for building a website. Launched in 2003 as a simple blogging engine, it was adapted with countless plugins to build business websites. But in 2026, this aging architecture is showing its limits against modern demands for speed, security and mobile experience.
In Switzerland, more and more SMEs, medical practices, accounting firms and tradespeople are migrating their websites to Next.js, the React framework developed by Vercel. Why this strategic shift? Here are the facts.
Comparison table: traditional WordPress vs. modern Next.js
| Criterion | WordPress with theme & plugins | Next.js (Klickstudio) |
|---|---|---|
| Average load time | 2.5 to 5.5 seconds | 0.4 to 0.8 seconds (instant) |
| Google PageSpeed score | Often between 35 and 65 / 100 | 95 to 100 / 100 guaranteed |
| Security vulnerabilities | High (outdated plugins, PHP/SQL flaws) | Near zero (pre-compiled static code, no exposed SQL database) |
| Mandatory updates | Weekly (risk of breaking the site) | No plugin updates required |
| Server load | Heavy (database queries on every click) | Very light (files served via CDN) |
| Average conversion rate | 1.2% to 2.4% | 3.5% to 6.8% |
1. Page speed: the #1 factor in Google rankings
When someone visits a WordPress site, the server has to run dozens of PHP scripts and query a MySQL database to assemble the page before sending it. With Next.js, pages are generated in advance: they are served instantly as soon as the user clicks the link.
For Google, this difference is huge. The algorithm heavily penalizes slow sites in its mobile index and favors those that meet the Core Web Vitals criteria (LCP < 1.2s, CLS = 0).
2. Security: say goodbye to automated attacks on /wp-admin
Every day, thousands of bots scan the web for WordPress sites running outdated plugins to inject spam links or hijack forms. With Next.js, there is no /wp-admin folder and no publicly accessible database. The website is sealed off from classic injection attacks.
3. Cost: no more quarterly maintenance bills
With WordPress, an agency often charges CHF 100 to 250 per month just to click “Update plugins” and fix recurring incompatibilities. A Next.js website built by Klickstudio is stable by design: it does not degrade over time and needs no forced maintenance subscription.
Want to migrate your website to Next.js?
Klickstudio handles the complete redesign of your business website: custom design, Google speed 95+, 100% owned from CHF 690.