Scan your site for cookies — free
Enter your URL and we render your homepage in a real browser to find every cookie, tracker and third-party domain it sets. No account, no install — results in seconds.
We only read publicly visible pages. Nothing is stored without your permission.
Results for
Cookies by category
Turn this scan into a compliant banner
Start a 14-day free trial to get a custom cookie banner, deep multi-page scanning, AI categorization and consent analytics — installed with one line.
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How the cookie scanner works
Most scanners only read your raw HTML, so they miss cookies set by JavaScript after the page loads. CookieBrain loads your site in a real Chromium browser at the edge and watches what actually happens.
Enter your URL
Type any domain — like example.com — and start the scan. No sign-up, no extension, nothing to install.
We render the page
Your homepage is loaded in a real headless browser, executing every script the way a visitor's browser would.
We capture cookies & trackers
As the page runs we record every cookie, third-party request and tracking domain it sets, including ones loaded after page load.
You get a categorized report
Each cookie is sorted into necessary, analytics, marketing or performance — the categories regulators expect on your banner.
What a cookie scanner finds
A thorough scan surfaces far more than the cookies you set on purpose. Here is what CookieBrain looks for on every page it renders.
First-party cookies
Cookies set by your own domain — session IDs, login state, preferences and the tags your own code writes to the browser.
Third-party & tracking cookies
Cookies dropped by embedded scripts — analytics, ad networks, pixels and social widgets — that follow visitors across sites.
Analytics & marketing tags
Google Analytics, Google Ads, Meta Pixel, TikTok, LinkedIn, HubSpot and 200+ other services, mapped to a consent category.
Third-party domains
Every external host your page contacts, so you can see exactly who receives data when someone visits your site.
Cookie scanner FAQ
Is the cookie scanner really free?
Yes. You can scan any website's homepage for free without creating an account or entering a credit card. A free trial unlocks deep multi-page scanning, the consent banner and analytics.
How accurate is the scan?
We render your site in a real Chromium browser and capture cookies as they are actually set — not just by parsing HTML. That catches JavaScript-set and third-party cookies that simpler crawlers miss, so results closely match what a visitor's browser sees.
Does scanning store or change anything on my site?
No. The scanner only reads publicly visible pages, exactly like any visitor. It makes no changes to your website and does not store your results without your permission.
What do I do with the results?
The report shows which cookies need consent under GDPR and CCPA. Start a free CookieBrain trial to turn the scan into a compliant cookie banner with Google Consent Mode v2, installed with a single line of code.
Scan, then ship a compliant banner
See exactly what your site sets, then generate a GDPR & CCPA banner in minutes — no credit card, no sales call.