LIVE5 apps blueprinted · REA engine online

Paste any app.
See its blueprint.

We open it in a sandboxed browser, map its code with open-source reverse engineering, and tell you in plain words how it works and where your data goes. Every claim links to evidence.

Try 5/5 free today
https://www.theguardian.comScanned
177
outside domains
81
trackers
719
requests
5
apps blueprinted
210
domains traced
93
trackers spotted
28
features explained
◆USDC on Base◆www.duolingo.com◆app.uniswap.org◆excalidraw.com◆www.theguardian.com
Live blueprint

Real output, not a mockup.

Open the full blueprint
www.theguardian.com
What this means for you

www.theguardian.com talked to 177 outside services on a first visit, including 81 that measure visits or show ads.

  • Before you click anything, the page loads analytics or ad services: Adobe Analytics, Cloudflare Web Analytics, Comscore, Permutive, Quantcast and 22 more.
  • 200 cookies were set in your browser, 177 of them by other companies' domains.
Where your data goes
Analytics & tracking10
Advertising71
Consent & bot protection1
Social & embeds1
CDNs & hosting1
Not identified93 
{
  "id": "E391",
  "label": "React found in the code",
  "where": "assets.guim.co.uk/assets/frameworks.c...:2",
  "engine": "pattern scan"
}
How it works

Four steps. About a minute.

The details

Open it safely

A fresh headless browser loads the public page in a sandbox. No login, no cookies accepted, no clicks.

Record everything

Every request, cookie name and storage key the page creates, and every outside domain it contacts.

Map the code

REA reads the site's own JavaScript: endpoints, routes, frameworks, wallet calls, each with file and line.

Explain it plainly

The writer turns those facts into short sentences. Anything it can't back with evidence is deleted.

Gallery

Recently blueprinted.

All blueprints
Contractbase:0x833…a02913 Contract · 2 h ago USDC on Base

USDC on Base: the code has 5 control switches that can still be used.

5 switches60 functions Website Website · 2 h ago www.duolingo.com

Duolingo talked to 20 outside services on a first visit, including 10 that measure visits or show ads.

20 domains10 trackers7 features Website Website · 2 h ago app.uniswap.org

app.uniswap.org talked to 9 outside services on a first visit.

9 domains0 trackers6 features Website Website · 2 h ago excalidraw.com

Excalidraw talked to 4 outside services on a first visit, including 2 that measure visits or show ads.

4 domains2 trackers4 features Website Website · 2 h ago www.theguardian.com

www.theguardian.com talked to 177 outside services on a first visit, including 81 that measure visits or show ads.

177 domains81 trackers5 features
Your turn

Curious what an app does with you?

Paste a link. About a minute later you have its blueprint: who it talks to, what it stores, what it can ask your wallet to sign.

Get a blueprint