Platform

Squarespace UCP Adoption

Hosted website builder with built-in commerce for small businesses and creators.

Verified

Squarespace stores with valid profiles

Avg UCP Score

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average across verified stores

Avg latency

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profile response time

Avg capabilities

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declared per verified store

About Squarespace

UCP Checker identifies Squarespace storefronts from the storefront itself and checks each one for a profile at /.well-known/ucp every 24 hours, on the same terms as every other platform.

Visit Squarespace →

Run a fresh check on your Squarespace store

Paste any domain and see the full UCP diagnostic — profile validation, capabilities, transports, and bot access. Free, no signup.

Frequently Asked

About Squarespace on UCP Checker

Which Squarespace stores support UCP?

We haven't verified any Squarespace stores yet. Squarespace UCP adoption is still nascent — this page will automatically populate as soon as the first Squarespace store publishes a valid profile. Consider being the first: publishing a UCP profile is typically a few hours of engineering work and gets your store listed in the UCP Checker directory.

How do I publish a UCP profile on Squarespace?

Publishing a UCP profile on Squarespace means serving a valid JSON document at /.well-known/ucp on your store's origin domain. Depending on your stack this can be handled via a custom app, a platform-level feature (where available), or by proxying the endpoint through your CDN. Once published, our crawler will auto-detect it on the next 24h cycle.

How often is the Squarespace list updated?

We re-crawl every known Squarespace storefront at least every 24 hours and re-check any store you manually trigger a fresh check on. The counts, leaderboard, and capability coverage on this page update automatically — the data you're looking at is never more than a day old.

Can I add my Squarespace store to UCP Checker?

Yes — just run a live check on your domain. If you publish a valid UCP profile at /.well-known/ucp you'll appear on this page automatically on the next crawl cycle. No signup, no fee, no gatekeeping.