Free
- 1 site
- 1 copy a month
- Up to 5 pages per copy
Audit. Fix. Rebuild.
Paste your link. Get it rebuilt in HTML, React, Next.js or MERN, with the problems that hurt your Lighthouse score fixed. Same design.

Check a site
Paste an address. We tell you the stack it runs on, then which plan audits and recreates it.
Only sites your company owns or may use. Nothing is copied or changed.
Our own sites
Every site in this strip is one of ours. We ran each through Remastly to build and test it, so there are no customers here. 10 sites run through the tool so far.
Measured runs
collateral.panscience.ai · 11 pages
Original and copy, same device and settings
Hover or tap a part of the ring to see its score.
What it does
Speed, SEO, accessibility, best practices, broken links and AI-answer readiness, ranked by how much they matter.
Markup, styles and animations are carried over, then compared with the original pixel by pixel.
Plain HTML, React + Vite, Next.js or MERN, with the problems fixed and a report on what changed.
The whole copy as one .zip in the stack you picked, with the deploy steps and the report.
Why it is different
Pixels, hovers and clicks are compared with the original, and the figures are published.
Every re-audit counts what got worse and lists it. Nothing is dropped from the report.
Plain HTML, React + Vite, Next.js or MERN, from the same run.
Whatever is not fixed stays on the list, with the reason the run recorded.
Counted in our own tool on 22 Oct 2026. All of them are our own sites.
Input platforms
Remastly copies what a real browser renders, so it does not depend on a list of supported platforms. The audit also names what a site is built with. These are the ones it recognises.
Output stacks
Pick a stack, preview the copy, then download the whole project as one .zip: every file, plus the deploy steps and the report. Every stack looks the same as the original.
The exact copy. Loads fastest, runs on any web host.
npx serve .
your-site-html.zip
React components, for teams that work in React.
npm install · npm run dev · npm run build
your-site-react-vite.zip
Next.js pages and components, for teams that work in Next.js.
npm install · npm run dev · npm run build
your-site-nextjs.zip
The same React client plus an Express + MongoDB server that saves the site’s own forms.
npm run install:all · npm run build · npm start
your-site-mern.zip
Pricing
Questions
Remastly does not generate a new approximation of your page. It keeps the page’s own markup, styles and animations, measures the copy against the original, and publishes the measurements.
Not always, and we do not claim it. Each re-audit marks every check fixed, better, still open or got worse, and lists the open and worse ones.
Never. You get a separate copy to preview and download.
Sites your company owns, or may use. Pages drawn on a canvas, and bot-protected sites, cannot be copied.
An audit usually takes one to three minutes, six at most; a copy can take several minutes per page.
Plain HTML is the exact copy. Next.js, React + Vite and MERN are real code generated from the site that looks the same as the original; MERN adds a server that saves the site’s own forms. You choose one for each copy.
Logins, shop checkouts, form backends and CMS content need a person. Remastly flags them and never fakes them.