A website that's fast , found and maintained. Without a plugin in sight.
What's wrong with your current website
It's slow.
Outdated technology, too many plugins, unoptimised images — your site takes 5 seconds to load. Google penalises slow sites in its rankings, and AI Overviews use those same rankings to decide who gets cited.
It generates no leads.
You have a homepage, a services page, a contact form. But how many inbound enquiries do you get per month? If the answer is vague, your site exists — it just isn't helping your business.
It's invisible on Google and AI.
Your prospects are searching for what you sell — but it's your competitor who shows up. With Google AI Overviews, if your site isn't structured to be cited by AI, you disappear twice over.
It drives prospects away.
60% of web traffic is mobile. If your site takes 4 seconds to load on a phone, the prospect leaves before reading your offer. They won't come back.
The design is outdated.
A prospect judges your site in 1 second. A dated design, stock imagery, a cobbled-together layout — it sends the wrong signal, regardless of how good your offer actually is.
You're paying a lot for nothing.
€300/month for WordPress maintenance. Then one day an update breaks everything — site down on a Saturday morning, no one knows why. This model shouldn't exist anymore.
I build websites that convert, get found, and don't slow you down.
Turn visitors into clients.
A website that generates no leads is a website that costs you money. I structure every page around a clear objective: contact, quote request, sign-up, purchase. And I optimise the journey so visitors go exactly where you need them to go.
Get found on Google and cited by AI.
To be visible in search engines and AI responses, you need a site that's ultra-fast, well-structured, and SEO/GEO-optimised at code level — not via a plugin added after launch. I handle all of this from the very first commit.
No maintenance. No plugins.
No database, no plugins, no security vulnerabilities. Your site is hosted on a global CDN with near-zero maintenance overhead. You focus on your business — not your website.
Proof: 9 countries, 100% automated, 10% human contact.
Coddy runs urban escape games across 9 countries. From the website, a visitor can discover, book, pay and receive their instructions — with zero human intervention.
That's what a well-built website can do when every page has a clear objective and a solid conversion architecture behind it. I apply the same logic to every Numinam project — whether for startups, e-commerce brands, HoReCa operators or consulting firms across Belgium.
— Sébastien, founder & developer at Numinam
How I work
Audit your current site
Wireframes and sign-off
Development and integrations
Launch and optimisation
Numinam vs the alternatives
No bashing — just the facts so you can make an informed choice.
| Numinam | No-code (Wix, Webflow) | WordPress agencies | |
|---|---|---|---|
| Conversion | Engineered to generate leads | Limited to available templates | Varies by agency |
| SEO & GEO | Native + AI-optimised at code level | Basic SEO, no GEO | Depends on installed plugins |
| Load time | < 1 second — PageSpeed 95+ | 2 to 4 seconds | 3 to 6 seconds |
| Maintenance | Near-zero (static site) | Managed by the platform | Heavy — plugins, security, updates |
| Ownership | 100% yours from day one | Locked into the platform | Yours, but ecosystem-dependent |
| 3-year total cost | €2,550 to €8,600 all-in | €1,500+/year, forever | €4,500 to €10,000 build + maintenance |
Conversion
SEO & GEO
Load time
Maintenance
Ownership
3-year total cost
Performance diagnostic
Calculate easily what your current site is costing you
4 inputs. An immediate result.
% of visitors who contact you or buy
No surprise invoices. Here's what it costs.
The price depends on the number of pages, the level of design customisation and technical integrations. A content management plan is available from €150/month: you send, I publish, your site stays alive without you touching it.
Prefer to manage your own content?
Frequently asked questions about Numinam websites
How much does a website built by Numinam cost?
Websites are available in three plans: Landing Page (€2,400), Marketing Site (€5,200) and Editorial Site (€7,900). The price depends on the number of pages, the level of integrations (CRM, analytics) and design complexity. A content management plan is available from €150/month across all tiers — the Editorial Site includes it for the first 3 months. The free 30-minute audit helps define the right plan for your project before any commitment.
How long does it take to build a website?
Between 2 and 8 weeks depending on the plan. A landing page: 2 weeks. A marketing site with up to 10 pages and a blog: 4 to 5 weeks. An editorial site with advanced SEO/GEO strategy and multilingual support: 6 to 8 weeks. I commit to a precise timeline from the start.
Does Numinam build e-commerce websites?
Yes. I build online shops for catalogues of up to several hundred products, with payment integration (Bancontact, Stripe, PayPal) and order management. For simpler projects, I use Snipcart integrated with Astro. For more complex requirements — advanced stock management, multi-currency, B2B portal — I work with Medusa. The free audit helps define the right solution for your project.
Do you rebuild existing sites or only build new ones?
Both. But only when the current site is a genuine obstacle to conversion, credibility or speed. If the problem lies elsewhere, I'll tell you.
Is SEO included in a website built by Numinam?
Technical SEO is integrated from the outset: speed, structured markup, content architecture, Core Web Vitals. For a complete SEO strategy — content, positioning, GEO — I offer a dedicated service. See my SEO & GEO offer.
What is GEO (Generative Engine Optimisation) and why does Numinam integrate it?
GEO stands for Generative Engine Optimisation. It's the practice of optimising your site to be cited in AI-generated responses (Google AI Overviews, ChatGPT, Perplexity). SEO makes you visible in traditional search results. GEO makes you visible in AI answers. I structure your site for both from the very start.
Why does Numinam use Astro instead of WordPress?
WordPress is powerful, but it carries significant technical debt: plugins requiring constant updates, a database to secure, load times that worsen with every addition. It's also the most targeted CMS for cyberattacks — which makes sense given it powers over 40% of the web. Astro generates static sites that are ultra-fast, with a near-zero attack surface and virtually no maintenance. For a marketing site focused on conversion and SEO, it's objectively the better choice.
How does maintenance work after launch?
Thanks to the static architecture, technical maintenance is near-zero — no plugins, no database to monitor. For content updates, you send me what you want published and I handle it. You manage nothing, you break nothing. If you'd prefer to manage your own content independently, I can build a bespoke admin interface for your team — that's what the custom site with CMS offer covers.
Do I keep ownership of my site if I stop working with Numinam?
Yes. The code is 100% yours. No lock-in, no annual licence, no proprietary platform. If you ever want to change provider, you leave with everything.
Are Numinam websites GDPR compliant?
Yes. Sites I build are hosted on European servers, with no superfluous data collection. Contact forms comply with Belgian GDPR requirements — explicit consent, integrated privacy policy, no transmission to undeclared third parties. If your project involves sensitive data or specific processing requirements, this is addressed during the audit so the architecture is compliant from the outset.
Your website should work as hard as you do.
25 minutes to analyse your current site and identify immediate wins — in conversion, visibility and performance. I review speed, SEO, mobile experience and the conversion journey.
You leave with a clear diagnosis and a concrete action plan. Free. No commitment. With Sébastien, not a sales rep.