See which third-party trackers and cookies a website loads before you ever click anything.
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Every website you visit silently loads scripts that profile you for analytics, advertising and session replay — usually before you've accepted a cookie banner. This scanner fetches a page server-side, inspects the HTML for the most common trackers (Google Analytics, Facebook Pixel, Hotjar, TikTok, LinkedIn, HubSpot and more), enumerates third-party script hosts, and lists every cookie the server tries to set on the first request.
Type or paste the target you want to inspect into the input field at the top of the page.
Click the check button — the tool queries live data sources and returns results in seconds.
Review each finding: status, score, and the reason behind every warning are listed line by line.
Follow the linked remediation guides to fix issues, or copy the report to share with your team.
When something in your stack misbehaves, half the battle is figuring out whether the problem is you, the network, or the other side. Tracker & Cookie Scanner gives you a fast, opinionated readout so you can rule things in and out in seconds. Because the check runs on live infrastructure and reports raw results — not marketing-safe summaries — you can trust what you see and act on it. Toolzer's design philosophy is simple: privacy-first (no tracking, no accounts), performance-first (the page is interactive in under a second on a 3G connection), and honesty-first (no fake ratings, no dark patterns, no upsells). Tracker & Cookie Scanner follows the same rules as every other utility on the site. You can bookmark this page, share the URL with a colleague, or pin it to your browser's toolbar — the experience will be identical every visit, and it will keep working even if you're on airplane Wi-Fi. Real people use this tool for real work — freelancers cleaning up client deliverables, sysadmins triaging tickets, students finishing assignments — and it is tuned for those workflows, not for demo videos.
Many cookies (e.g. _ga, _fbp) are set by JavaScript after the page loads, not by HTTP headers. We surface those indirectly via the tracker list.
No — the scanner is an unauthenticated fetch with no consent given. That's intentional: it shows you what trackers load before any consent decision.
Often it's a CDN, error tracker or chat widget that the site owners forgot was a third-party script.
Not from this tool. We only fetch the public response. For logged-in pages use your browser's DevTools.
No. Every utility on Toolzer is free, anonymous, and works in any modern browser without registration.
Yes. Whenever the tool can produce an answer entirely in the browser, the data never leaves your device.
Yes. The interface is fully responsive and works on iOS Safari, Android Chrome, and every modern mobile browser.
Yes. Every Toolzer page has a clean permanent URL you can bookmark or share.
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