On this page · 9 sections
We build Astro sites. That does not make us objective. But it forces us to be precise — because the slightest exaggeration turns against us. What follows compares Astro and WordPress with measurable data, not opinions.
If WordPress is the right choice for your project, we will tell you. What matters to us is that you make an informed decision.
The concrete differences between Astro and WordPress in 2026 — in performance, cost, security, SEO, and maintainability. Including the cases where WordPress remains the better choice.
Two philosophies, not two versions of the same tool
WordPress is a full-stack CMS. It handles everything: content, design, server, database, plugins, users. It is a Swiss army knife — and it does roughly everything you ask of it.
Astro is a static site generator. It takes your content (Markdown files, headless CMS, APIs) and produces pure HTML at build time. The result is a folder of files — not a server application.
These are not two competitors doing the same thing differently. They are two tools that solve different problems.
Performance: the numbers
This is the most measurable difference. And the most significant.
| Metric | WordPress | Astro (our measurements) | Gap |
|---|---|---|---|
| Median LCP (mobile) | 3.4s | 1.2s | -65% |
| HTML size | ~180 KB | ~50 KB | -72% |
| JavaScript shipped | 300-450 KB | 0 KB (default) | -100% |
| CWV pass rate (mobile) | 38% | ~60%+ | +22 pts |
| Lighthouse Performance | 40-55 | 95-100 | +45-55 pts |
The reason is architectural: WordPress executes PHP and queries a database on every visit. Astro sends an HTML file that is already ready. No caching plugin fully closes this gap.
Astro produces HTML that is 72% lighter and LCP that is 65% faster than WordPress. The gap on mobile Core Web Vitals is 22 percentage points.
2026 comparative data, Chrome UX Report and HTTP Archive.Cost: over 3 years, not day 1
The creation price is comparable. It is the total cost over 3 years that diverges:
| Item | WordPress | Astro |
|---|---|---|
| Site creation | EUR 2,000-5,000 | EUR 2,400-5,000 |
| Hosting (36 months) | EUR 540-1,080 | EUR 0 |
| Maintenance (36 months) | EUR 1,080-2,880 | EUR 0 |
| Premium plugins (36 months) | EUR 1,500-3,000 | EUR 0 |
| Domain (36 months) | EUR 36 | EUR 36 |
| 3-year total | EUR 5,156-11,996 | EUR 2,436-5,036 |
The difference comes from recurring costs. WordPress requires a server, updates, paid plugins. Astro, deployed on Cloudflare Pages, has no operating cost beyond the domain name.
Security: the attack surface
In 2025, 11,334 new vulnerabilities were discovered across WordPress — a 42% increase over 2024. 96% come from plugins.
A WordPress site exposes:
- A PHP interpreter
- A MySQL database
- A login page (
/wp-admin) - A file upload handler
- Dozens of plugins, each a potential attack vector
An Astro site exposes:
- Static HTML files on a CDN
- Nothing else
There is no server to compromise, no database to inject, no login to brute-force. Security is not a plugin you add — it is a consequence of the architecture.
11,334 vulnerabilities in 2025. 96% come from plugins. A WordPress site left unpatched for 3 months is an open target. A static site does not have this attack surface — because there is no server to attack.
SEO: same field, different approach
Both can rank well. But the method differs.
WordPress has the catalogue advantage: Yoast, Rank Math, thousands of SEO tutorials. For someone unfamiliar with SEO, WordPress plugins that guide you step by step are a real plus.
Astro has the control advantage: you have access to every line of the generated HTML. No unnecessary markup added by a theme, no scripts slowing down rendering, no divs inside divs inside divs. The HTML is exactly what you decide it should be.
And on Core Web Vitals — which are a Google ranking factor — Astro has a structural advantage of 22 points.
If your SEO strategy relies on content and backlinks (and it should), both platforms work. If technical performance is a differentiator in your sector (e-commerce, news, high-traffic sites), Astro has the edge.
The catalogue: WordPress’s real strength
Let’s be honest. The WordPress plugin and theme catalogue is unbeatable in volume:
- 60,000+ plugins available
- 10,000+ themes
- Millions of developers worldwide
- Any need probably already has a plugin
Astro has a smaller but fast-growing catalogue:
- 2.5 million downloads per week (2× vs 2025)
- 55,200 GitHub stars
- No. 1 in satisfaction in State of JS 2025
- Used by IKEA, Porsche, Unilever, Microsoft, The Guardian
If you need a specific plugin that only exists in WordPress (a complex booking system, advanced e-commerce, an LMS), WordPress remains the pragmatic choice.
When WordPress is the better choice
WordPress wins when:
- You need full e-commerce (WooCommerce is mature and proven)
- You need a membership system with complex roles and permissions
- Your content team wants a visual WYSIWYG editor without compromise
- You need a specific plugin with no equivalent outside WordPress
- Your initial budget is under EUR 1,000 and you have no developer
Many “Astro vs WordPress” articles are written by Astro agencies that caricature WordPress, or by WordPress agencies that ignore Astro. The truth: WordPress is a mature and powerful tool. Astro is a modern and performant tool. The best choice depends on your project, not on your provider’s preference.
When Astro is the better choice
Astro wins when:
- Your site is primarily content (business site, blog, portfolio, documentation)
- Performance is an important criterion (competitive SEO, mobile-first)
- You want zero operating cost after delivery
- You want to own your code without depending on third-party plugins
- Security is a concern (sensitive data, regulated sector)
- You want a site that stays fast without permanent maintenance
The Astro4B choice
We chose Astro for our clients because 90% of business sites and company blogs do not need what WordPress adds (and what it weighs). They need a fast, well-indexed, secure site that costs nothing to maintain.
For the 10% that need WordPress — e-commerce, complex systems, specific plugins — we say so clearly and point to the right partners.
Blog, business site, portfolio, documentation → Astro. The content does not change between visits.
Product catalogue with payment → WordPress + WooCommerce (or Shopify). The range is more mature.
Under EUR 1,000 → WordPress with a premium theme. Above that → compare the 3-year cost.
Competitive SEO, mobile-first, Core Web Vitals → Astro. The advantage is structural.
Still undecided? Test your current site on PageSpeed Insights. If the score is above 90, your current stack works. If it is below, the configurator shows what an Astro site would cost — and what it would change.