Next.js Detector
Paste any URL and instantly see whether the site is built with Next.js — 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
Next.js performance depends on rendering mode (SSR/SSG/ISR) and image components. Confirming the framework is step one.
Related detectors
FAQ
How is Next.js 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.
Optimization help is available
The audit found the issues. The subject and body are prefilled — just pick how you want to send it.
To：[email protected] | Cc：[email protected]
