Fast sites, by architecture.
Caddisfly publishes your site as pure static HTML served from a global edge network — no page-builder runtime, no render-blocking bloat. Here’s what that measures like.
A real published Caddisfly site, measured
Google Lighthouse, June 2026, on a customer site built with the AI builder (mobile = simulated mid-range phone on slow 4G; desktop = simulated broadband). Not a stripped-down demo — a real multi-page site with images, forms and analytics.
Why it’s fast
Static HTML at publish
Your pages are baked to plain HTML when you publish — nothing is assembled in the visitor’s browser.
Served from the edge
Every page is delivered from a data center near your visitor, on the same global network that runs a big chunk of the internet.
No builder runtime
Big site builders ship their editor’s JavaScript framework to every visitor. We ship none — that’s the 0 ms total blocking time.
No layout shift
Sections render at their final size. Nothing jumps while loading — that’s the 0.00 CLS.
The industry context
In DebugBear’s independent website-builder lab review (October 2025), the Wix test site scored 72 on Lighthouse mobile with a 5.2 s largest paint, and Squarespace scored 31 with 8.8 s — the Caddisfly site above measures 88 mobile / 98 desktop with a 0.9 s desktop paint. Google also publicly tracks how real users experience every major platform — compare for yourself on the Core Web Vitals Technology Report. Big builders ship speed-remediation dashboards to help users chase these metrics; Caddisfly sites simply don’t carry the weight that makes the chase necessary.
Don’t take our word for it
Every Caddisfly site is public HTML — run any of them (or your current website) through Google’s PageSpeed Insights and compare.
Open PageSpeed Insights ↗ See the full comparison vs Wix →