Case study
Marketing website
The site you are reading, moved from Next.js to Rust without losing a URL
envixo.com is published in 99 languages. We rewrote it from Next.js to Rust, compared every URL with the old site before the switch, and fixed what the old site got wrong for search engines, right-to-left languages and AI assistants.
- Client
- Envixo
- Platform
- Web
- Industry
- Marketing website
- Launched
- 2026
The challenge
The Next.js site worked, but it needed a Node.js server with 512 MB of memory reserved, sent around 150 KB of HTML per page and had gaps: no right-to-left layout, and structured data added only by JavaScript.
What we built
A Rust server with axum and Askama that serves the same URLs, the same 99 locale files and the same design, built with Tailwind and plain JavaScript.
The same URLs and redirects
Language detection, locale prefixes, trailing slashes and the language cookie behave like the old site, so no link or ranking was lost.
SEO parity, then better
Metadata, hreflang, JSON-LD and the sitemap match the old site, with fixes to the social sharing tags and a new llms.txt.
A zero-difference gate
A tool compared every URL of the old and new sites. The switch required zero differences, plus screenshots at three widths in English, Arabic and Japanese.
Explore in 3D
A guided three.js tour of the whole landing page, with a plain list when 3D is not available.
A contact form without an SDK
A spam check with Cloudflare Turnstile and email through Amazon SES, with requests signed by hand, a honeypot and a limit per visitor.
Errors reported, keys kept safe
Server and browser errors go to Honeybadger, and the API key never reaches the page.
Engineering results
Memory measured in production in October 2026; image size from the build. The sitemap count is checked by an automated test.
- Rollback by DNS, with the old site kept for seven days
- Dependency updates merged automatically once tests and the image build pass
- Tests and builds run on Envixo's own CI runners
- Published in 99 languages from the same locale files as before
Technology
- Rust
- axum
- Askama
- Tailwind CSS
- three.js
- Amazon SES
- Cloudflare Turnstile
- Kubernetes
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