9-language site moved from WordPress to code in two weeks

The marketing site ran on WordPress. Every content change needed a developer. The site was also slow on Core Web Vitals (Google's speed metrics), and its stack did not match the rest of the product.

I recommended the new stack: Astro for the site and Sanity to edit the content. Then the site had to move over, keeping the content and the URLs, so the team could edit it on its own.

An audit first. I audited the WordPress site and chose the stack.

The content model. I exported the content and built its structure in Sanity in one day.

Pages and redirects. I migrated the pages and the blog, and checked the URL structure and the redirects.

Nine languages. I rebuilt the navigation, the author pages and the translations in all nine languages.

A faster site. After launch, a third-party script slowed the pages (an INP of 247 ms and 94 ms of blocking time). I deferred its loading and both problems went away (April 2026).

A cut-over in three phases, written step by step for the founder. First the DNS moved to Cloudflare, with no change for visitors. Then the domain switched to the new site. Finally the checks: redirects, sitemap submitted to Google, errors tracked for six weeks.

Core migration done in about two weeks.

Nine languages live.

The team edits content in Sanity, without a developer.

Lighthouse in March 2026: 100 for performance, 93 for accessibility, 100 for best practices, 100 for SEO.