Webflow Detector
Paste any URL and instantly see whether the site is built with Webflow — with the matched evidence.
We do not store the URL you audit. Want the full audit (performance / images / SEO / accessibility + real-browser speed test)? → run the full audit
Why check this
Webflow sites usually bottleneck on exported images and third-party scripts, not hand-written code.
What this is
Webflow is a visual design-and-hosting website platform. Marketing landers and brand sites use it to publish quickly. Confirmation lets you weigh how website-files CDN assets, interaction scripts and form endpoints contribute to LCP and TBT. Designers ship visually; performance work starts by naming which CDN hosts actually load.
How to tell from a public page
- [Webflow] Static assets come from `assets.website-files.com` or `assets-global.website-files.com`.
- [Webflow] Meta generator or content attributes name the platform.
- [Webflow] `webflow.js` or an equivalent runtime script appears.
- [Webflow] Data attributes and class names mirror Designer export structure.
How to read the result
Confirm when CDN hosts or runtime scripts reproduce; landing-page copy that only mentions a design tool remains only suspected. Absence can mean an export to self-hosting with rewritten asset domains. Tutorials that paste sample project links are noisy. After a hit, compress oversized background video and unused interactions.
What to do next
Enable asset compression, defer non-critical interactions, and review form anti-spam settings. The edge layer often sits on Cloudflare — open Cloudflare detector. Combined vitals live on run the full performance / images / SEO / accessibility audit on the home page. Preserve Webflow CDN host evidence for the designer handoff.
Related detectors
FAQ
How is Webflow detected?
From structural signatures in the public HTML and response headers (domains, paths, attributes, scripts). Every verdict lists how many times each pattern matched — nothing is guessed.
Can the result be wrong?
If only a bare brand keyword matches without structural evidence, we label it \u201clikely\u201d instead of \u201cconfirmed\u201d — we would rather under-report than cry wolf.
Do you save the URLs I check?
No. The audit runs inside the request and the URL you paste is not written to storage. There are no third-party tracking scripts on the page either, so no log of who checked what exists. Copy the result yourself if you want a record.
Can a website hide what it is built with?
Partly, but rarely completely. The HTML sent to your browser, the response headers, script paths and asset structure have to be exposed to work, so there is always something readable. Server-side code, build config and private APIs stay invisible. That is why this tool reports the evidence it found rather than claiming a full picture. No match does not mean the technology is absent.
Optimization help is available
Tell me your URL and what you want fixed — you get a clear scope, price and timeline.
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