Optimisation Cornerstone

WordPress vs Astro in 2026: what's the best choice for your website?

5 min read -

Last updated March 20, 2026

Sebastien Balieu
Sebastien Balieu
WordPress vs Astro in 2026: what's the best choice for your website?

In 2026, two major technological families will be at odds when it comes to creating websites:

  • WordPressthe historic CMS, flexible and economical… but aging.

  • Astroa modern, ultra-fast framework designed for performance, SEO and long-term simplicity.

Since 2024, a massive shift has been taking place:


sMEs, consultants and B2B companies are gradually migrating to Astromainly for reasons of performance, safety and total cost.

Here’s the complete, clear and decision-oriented comparison.


WordPress in 2026: benefits and limitations

The benefits:

  • very low start-up costs,

  • huge ecosystem of plugins,

  • very good for a simple site on a small budget,

  • easy to modify without development.

But in 2026, WordPress6 major problems :

  1. Average or poor performance

    Each plugin adds JavaScript, CSS and additional requests.


    Result:


    sites to60-75 on Lighthouse mobile, rarely above 80.

Impact: lower SEO + lower conversions.

  1. Mandatory and costly maintenance

    On average, a WordPress site requires :

  • core updates,

  • plugin updates,

  • theme updates,

  • safety monitoring,

  • corrections for incompatibilities.

Cost :100€ to 500€/month for proper maintenance.

  1. Fragile safety

    43% of sites hacked in 2025 were WordPress sites.


    Leading surface :
    each plugin = a risk.

  2. Frequent incompatibilities

    Plugin A + plugin B = conflict


    Updated plugin = broken design


    Discontinued plugin = security hole

  3. Limited scalability

    The bigger the site gets, the slower and more unstable it becomes.

  4. Actual costs higher than expected

    WordPress is free..


    but itsTCO (Total Cost of Ownership) is often very high:

  • maintenance,

  • safety,

  • heavy accommodation,

  • dependence on premium plugins.


Astro in 2026: the game-changing modern framework

Astro is a framework designed to createhigh-speed sites by generating static or hybrid pages, with a minimum of JavaScript.

Key benefits:

1. Unmatched speed

Astro produces almost JavaScript-free pages by default.


Result:


Lighthouse scores of 90-100 even on mobile, pages that load in 0.3 to 1 second.

Impact :

  • +25 to 60% conversions,

  • better SEO,

  • best user experience.

2. Native security

No exposed database.


No vulnerable plugins.


No dynamic attack surface.


Astro is virtually impossible to hack.

3. Extremely low maintenance

An Astro site requires :

  • 0 plugin updates,

  • 0 security patch management,

  • virtually no technical intervention.

Actual cost :0 to €150/month according to editorial needs.

4. Compatible with all modern frontends

You can join :

  • React,

  • Vue,

  • Svelte,

  • HTML pur.

Total flexibility.

5. Superior SEO

Speed is now a major criterion.


Astro + structured content =best ranking.

6. Perfect for SMEs, consultants and B2B companies

Astro lets you create showcase or corporate websites high-performancewithout the burden of an aging CMS.

High-Performance Websites
Page

High-Performance Websites

Your website exists. But is it working? Is it generating leads, converting visitors into customers, showing up on Google when your prospects search for what you sell? We build websites that convert, get found — on Google and by AI — and don't need constant babysitting.

Lire la suite

Comparaison WordPress vs Astro (2026)

Criteria

WordPress

Astro

Performance

average

excellent

Security

low to medium

very high

Maintenance

high

very low

Development speed

fast at first

fast + clean

SEO

medium

excellent

Scalability

limited

very good

Initial cost

low

moderate

Long-term cost

high

low

Ideal for

petits budgets

companies seeking performance & ROI


What is the real cost (TCO) over 3 years?

WordPress

  • Accommodation: €150 - €400/year

  • Maintenance: €1,200 - €6,000/year

  • Plugin corrections/bugs/conflicts: €300 - €2,000/year

  • Piracy risk: €2,000 - €15,000 (if it happens)

Total cost over 3 years: €6,000 - €25,000+

Astro

  • Accommodation: €20 - €200/year

  • Maintenance: €0 - €1,800/year

  • Safety: virtually no risk

  • Corrections: minimal

Total cost 3 years: €600 - €6,000

How much will a website cost in Belgium in 2026?
Article

How much will a website cost in Belgium in 2026?

2026 website prices in Belgium: showcase, e-commerce, corporate. Actual ranges, cost factors, SME budget, recurring costs. Complete guide.

Lire la suite

When to choose WordPress in 2026?

WordPress is a good choice if :

  • you have a very tight budget (<€1,500),

  • you need to be able to modify your site entirely without any technology,

  • you want ready-to-use plugins (calendars, complex forms, membership…).

For a simple project with low SEO expectations, WordPress remains a cost-effective option.


When to choose Astro in 2026?

Astro is the best option if :

  • speed is a priority,

  • SEO is strategic,

  • you want to avoid heavy maintenance,

  • you want a site that’s stable over several years,

  • you want a premium image,

  • you don’t want the risk of piracy,

  • you’re looking for a direct impact on conversions.

Astro is particularly suitable for :

  • SMEs & established companies,

  • consultants & B2B firms,

  • premium brands,

  • content companies,

  • companies fighting for SEO,

  • companies that want to integrate AI.


Concrete example: performance and conversion

Astro often cuts loading times by a factor of 3 to 10.
A page going from 3.5s to 0.9s can increase:

  • conversions: +25 to +60%,

  • time spent: +20 to +50%,

  • SEO: +10 to +30 positions depending on the competition.

This explains Astro’s boom in modern web studios in 2026.


Why Numinam recommends Astro in 2026

Numinam uses Astro for 90% of its showcase & corporate sites because :

  • it’s the best-performing technology on the market,

  • it reduces long-term costs,

  • it avoids safety emergencies,

  • it delivers immediate SEO results,

  • it’s more stable & scalable than WordPress,

  • it enables premium designs,

  • it allows AI to be properly integrated.

Typical Numinam budget:


3,000€ - 15,000€ depending on ambition

→ Request a free audit :

contact@numinam.com

About the author
Sebastien Balieu

Founder, Numinam

Sebastien Balieu

Sébastien is a full stack developer, UX/UI designer, founder and serial entrepreneur. He is French and has been living in Belgium for over 10 years.

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