How to Migrate a Webflow Site to Astro Without Losing Speed or SEO
Astro ships almost no JavaScript, one of the fastest ways to run a content site. Here is how I move Webflow sites to Astro while keeping the design, the rankings, and an easy way to edit content.
TLDR: moving from Webflow to Astro gets you near-instant load times, full code ownership, and no monthly subscription. The migration is safe if you keep three things intact: every URL (with 301s for anything that changes), all content and metadata, and your technical SEO signals. Keep those and rankings hold while speed improves.
Why move to Astro
- Astro ships zero JavaScript by default, so pages load close to instantly.
- You own the code and can host it anywhere, for free or close to it.
- No platform limits on CMS items or per-seat pricing.
What stays the same
- The design, rebuilt faithfully at every breakpoint.
- Every URL, with permanent 301 redirects for anything that must change.
- Titles, meta, canonicals, structured data, and your sitemap.
The process, step by step
- Inventory first. Export every URL, title, meta, and current ranking. This is your source of truth and redirect map.
- Rebuild in Astro. Recreate pages as static routes so they ship fast, crawlable HTML.
- Move the content. Webflow CMS collections become Astro content collections (Markdown or MDX), or a headless CMS if the team needs a visual editor.
- Port metadata and schema. Re-add titles, descriptions, canonicals, Open Graph, and JSON-LD.
- Set 301 redirects for any changed paths, and test them.
- Regenerate the sitemap, verify robots access, then submit in Search Console.
- Launch and monitor Core Web Vitals and coverage for a few weeks.
Keeping content editable after the move
This is the trade people worry about. Options:
- Markdown or MDX in the repo, edited via Git. Best for developer-run sites.
- A headless CMS like Prismic, Sanity, or Storyblok, for non-technical teams.
- Astro content collections for typed, structured content.
Common mistakes
- Using 302 instead of 301, which does not pass authority.
- Dropping structured data and losing rich results.
- Leaving no easy way to edit content, so the team cannot update the site.
FAQ
Will I lose SEO moving from Webflow to Astro? Not if URLs, content, and metadata carry over with correct 301s. Sites usually hold rankings and gain from faster load times.
Can my team still edit the site after moving to Astro? Yes. Pair Astro with a headless CMS or content collections so non-technical editors keep a way to publish.