Wagtail development agency in Belgium
Based in Brussels, we have been Wagtail providers since 2016 — early adopters from version 1.x, with nearly 10 years designing, shipping and maintaining production Wagtail sites for Belgian and international organisations.
Wagtail is the open-source Python CMS chosen by Google, NASA, Mozilla, the British NHS (1.2 billion visits per year), Oxfam, MIT and the Royal College of Art. It is today the only CMS approved to run on the google.com domain — a security standard few platforms reach.
At KERN-IT, we put this technology to work on ambitious editorial projects: Pahrtners, Le Forum, VENN and many others run on Wagtail thanks to our team.
Why choose Wagtail
Built for editors
Modern admin interface: real-time preview, autosave, drag & drop StreamField blocks, content search. Multi-role publication workflow, fine-grained permissions and built-in multilingual. Your editors adopt Wagtail in a few hours, not a few weeks.
Performance & accessibility
Fast pages by default, optimised Core Web Vitals, built-in WCAG accessibility checks in the editor since Wagtail 7. Ideal for public sector, NGOs and any organisation under EAA 2025 rules.
Sovereignty & longevity
100% open source, built on Python and Django (LTS). No captive SaaS, no per-editor licence, no vendor lock-in. The code is yours and stays maintainable for 10+ years.
Our Wagtail expertise (version 7.4 LTS)
Custom StreamField
We design content blocks tailored to your business. With autosave (Wagtail 7.3+), your editors never lose work again. Drag & drop reordering, real-time preview.
Advanced multilingual
Wagtail Localize manages dozens of languages without external plugins. Built-in translation workflow, synchronised publishing per locale. Ideal for European NGOs, public sector and international organisations.
Headless & API
Native REST API, cross-domain preview for Next.js / React / Astro frontends, JAMstack ready. Wagtail 7 specifically refactored the user bar and live preview for headless setups.
AI & agents
Wagtail AI integration (content generation, translations, image descriptions), content quality checker, and adoption of the llms.txt standard so your site is readable by AI agents and LLMs.
Our approach
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1. Audit & scoping
Analysis of your existing setup (current CMS, content, SEO, performance). Scoping of page types, StreamField blocks, languages and integrations (CRM, marketing automation, analytics).
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2. Editorial architecture
Wagtail modelling: page types, snippets, taxonomies, publication workflow, permissions. Design of custom blocks adapted to your editors.
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3. Iterative build
Python/Django + Wagtail development, frontend integration (Tailwind, React if headless), automated tests, continuous deployment. You see the site grow in preview every sprint.
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4. Go-live & training
Deployment, SEO redirects, accessibility audit, editor training (half a day is enough). Long-term evolutionary maintenance — Wagtail 7.4 is LTS.
They trust us
Articles liés
Frequently asked questions about Wagtail
Wagtail is built for organisations that demand security, performance and long-term maintenance. No fragile third-party plugins, no updates that break everything, and an editing interface often praised as clearer than Gutenberg. If you run a site that has to last 5 to 10 years, Wagtail is a better investment.
Yes. The NHS serves 1.2 billion visits per year on Wagtail. blog.google and several Google publications run on Wagtail. NASA Jet Propulsion Lab modernised its flagship site on Wagtail in 2026. Children's Health Ireland merged 5 sites into one Wagtail. It's a platform proven at very large scale.
Yes — it's a strategic axis for the platform in 2026. Wagtail integrates Wagtail AI (content generation and improvement via LLMs), an AI-assisted content quality checker, and has adopted the llms.txt standard across its documentation to make it easy for agents to use. The August 2026 roadmap includes SEO power tools integrating GenAI.
Yes. Wagtail exposes a native REST API for headless architectures (Next.js, React, Astro). Wagtail Localize handles editorial multilingual without external plugins. And since Wagtail 7, accessibility checks (WCAG) are built into the editor. This is also why it's the reference CMS of the Royal National Institute of Blind People.
Our Wagtail projects start from €5,000 for a simple bespoke showcase site. A full editorial site (multilingual, custom StreamField blocks, CRM/marketing integrations, headless…) requires a larger budget — we scope it precisely during the free audit, based on your actual scope and constraints.
We deliver bespoke sites, designed and coded by our team — not a bought template dressed up, not vibe-coded over a couple of evenings. Every StreamField block, every page type, every integration is built for your business and your editors.
Concretely: clean and tested Python/Django code, design integrated hand-in-hand with our UX/UI team, WCAG accessibility verified, SEO and performance audited before go-live. A site built to last 5 to 10 years, not a throwaway deliverable.
On scheduling, we work in iterative sprints: you see the site grow in preview and give feedback at every step. The timeline depends on your scope — we frame it together during the proposal.
A Wagtail project to launch?
Let's talk about your site. Free audit, technical scoping, costed estimate within 5 days — by a Wagtail team that has been practising the stack daily since 2016.