Remix Detector
Paste any URL and instantly see whether the site is built with Remix — 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
Confirm the platform first: Framework decides what can be changed and whether it is worth it.
What this is
Remix emphasises web fundamentals and nested routes. B2B apps and content front ends use it to manage loaders and form actions. Confirming `__remixContext` lets you judge loader waterfalls and pending client navigations against INP. Nested routes shine until loader waterfalls serialise what could have been parallel.
How to tell from a public page
- [Remix] Inline state exposes `__remixContext`.
- [Remix] Runtime markers include a `__remix` prefix.
- [Remix] Route modules and script manifests follow framework conventions.
- [Remix] Form method/action patterns match documented conventions.
How to read the result
Confirm when the context object reproduces; a migration announcement naming the framework remains only suspected. Absence can mean a custom server stripped inline context. Official samples embedded whole on demo hosts create confusion. After a hit, collapse chained loaders and cache public data.
What to do next
Merge loaders, enable HTTP caching, and limit client transition flair. Hosting can be cross-checked on Vercel — open Vercel detector. Weighted audits continue at run the full performance / images / SEO / accessibility audit on the home page. Attach `__remixContext` evidence when filing loader-waterfall bugs.
Related detectors
FAQ
How is Remix 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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