Mirra for SquarespaceMake your Squarespace site
dramatically faster.
A pre-rendered, edge-cached copy of your Squarespace site on your own domain. Keep editing in Squarespace.
The problem, and the fix
Why Squarespace sites get slow.
Squarespace makes beautiful sites easy, but you get little control over the code, scripts and caching behind them. Mirra captures your live site and serves an optimised, pre-rendered copy on your own domain, so it loads dramatically faster. You keep editing in Squarespace.
Template scripts everywhere
Every page loads the platform’s full set of template scripts and styles, whether the page uses those features or not.
Big images and video
Full-width galleries, banners and background videos look great but are heavy, especially on phones.
Embeds and blocks
Social feeds, booking widgets, maps and code blocks each pull in their own third-party scripts.
Hosting you can’t tune
You can’t change how Squarespace caches, serves or bundles your pages, so there is little you can fix yourself.
How Mirra speeds up Squarespace
Mirra captures each Squarespace page as it renders, optimises its images, CSS and fonts, and serves it as static HTML from Cloudflare’s global edge. Scripts wait for the first interaction, so content paints quickly and your blocks still work.
Convert
Point Mirra at your Squarespace site. It reads the live pages directly, with nothing to install.
Build
Mirra pre-renders your pages, optimizes the assets, and compiles a static frontend deployed to the edge.
Ship
Go live on your own domain. Cart, checkout, and admin stay in your original platform, completely untouched.
What stays where
Squarespace keeps the back end. Mirra serves the front.
Stays on Squarespace
- The Squarespace editor
- Your templates and content
- Your Squarespace site, as a fallback
- Commerce checkout, if you use it
Keep building and editing in Squarespace. When you publish changes, sync the new and changed pages to Mirra in one click. Your Squarespace site is never changed.
Mirra handles
- Pre-rendered HTML for every public page
- Served from Cloudflare’s global edge, on your domain
- Images resized and converted to WebP and AVIF
- App and tracking scripts held until the first interaction
- Unused CSS stripped, fonts self-hosted
- Version history for every page
Full app conversion
Want to move away from Squarespace entirely?
Our Full app conversion rebuilds your Squarespace site as a clean Next.js / React codebase that you own outright. Complete handover, no more Squarespace plan, and we can host it or keep developing it if you want.
Can I still edit my site in Squarespace?+
Yes. Squarespace stays your editor. After you publish, sync the new and changed pages to Mirra in one click, review, and publish.
Do my forms and blocks keep working?+
Forms are captured with the page and submissions can be sent to your inbox or CRM. Embeds and blocks are captured as they render and their scripts load on the first interaction.
Do I need to change my Squarespace plan?+
No. Mirra runs alongside Squarespace and serves a faster copy on your own domain. Nothing about your Squarespace site changes.
See your Squarespace site, faster.
Run a free single-page speed test and compare it side by side with your live site.