What Does Your Referrer Reveal?
When you navigate from one page to another, your browser sends an HTTP Referer header containing your current page URL. Depending on where you came from, this exposes search terms, forum membership, campaign sources, or confidential internal URLs. Check yours now →
Why Checking Live Matters More Than Reading About It
Referrer behavior varies by browser, by whether you're on HTTPS or HTTP, and by settings you may have changed without remembering — reading a general explanation tells you what's supposed to happen, but only a live checker shows what your specific browser, right now, actually sends. This matters because privacy extensions and browser settings can silently change the default behavior, and the only way to be sure is to test it directly rather than assume.
A Common Way People Discover This Matters
A frequent real-world trigger for caring about this: someone shares an internal document link with a colleague via a messaging app, the colleague clicks through to a public site from it, and that public site's analytics dashboard shows the exact internal URL as the referrer — revealing document names or internal tool URLs never meant to be public. Checking what your browser sends before sharing sensitive links is the only way to catch this before it happens rather than after.
Data Exposed via the Referer Header
- The search engine and keywords you used to find a page
- The social media platform and post you clicked from
- Internal company tools and intranet page URLs
- Forum or community membership and specific thread
- Email campaign parameters from newsletters
- Session tokens or user IDs embedded in URL parameters
When No Referer Is Sent
- You typed the URL directly into the address bar
- You clicked a bookmark
- The source page uses
Referrer-Policy: no-referrer - The link uses
rel="noreferrer" - You navigated from HTTPS to HTTP (browsers block this)
- You used a dereferer to wrap the link
How to Stop Sending Referrer
- Use our Dereferer tool to wrap any link before sharing
- Copy-paste the URL directly into the address bar instead of clicking
- Enable Firefox's enhanced tracking protection
- Install a privacy extension like Privacy Badger
Related Tools
- Dereferer — Strip referrer from any link you share
- HTTP Headers Checker — See all headers your browser sends
- Referrer Removal Tool — Remove referrer from links
