Anonymity checkers
BrowserSpy.dk
BrowserSpy.dk runs online tests that show what information a page can collect from a visitor’s browser. The provider describes the results as diagnostics, not a complete security or anonymity assessment, and says they depend on the visitor’s browser, device, and privacy protections.
The tests suit readers checking what a browser exposes, provided they treat each result as a limited observation rather than a verdict on privacy.
Editorial review based on public sources, without hands-on testing; facts checked on 2026-10-31.
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- Logo
Each logo belongs to its owner and appears here only to help identify the service.- Name
- BrowserSpy.dk
- Category
- Anonymity checkers
- Official site
- browserspy.dk · No link provided
- Facts checked
Browser and Display Checks Share One Site
The provider’s homepage and feature pages describe these checks, according to sources checked on 2026-10-31.
- Browser and system: browser and operating-system information, IP addresses, HTTP headers, and browser features exposed to websites (provider homepage, checked 2026-10-31).
- Display: screen dimensions, color depth, and other display properties (provider homepage, checked 2026-10-31).
- Cookies: cookie behavior and cookies available to the site (provider homepage, checked 2026-10-31).
- Geolocation: test uses the browser’s permission prompt (provider homepage, checked 2026-10-31).
- Access: the provider states the service is free (provider homepage, checked 2026-10-31).
Reported Fields Span Browser and Network Data
The checks cover browser identification and the network details visible to a web server. The provider lists tests for browser name, version, and reported capabilities, plus the network address seen by the server.
Visitors can also inspect information sent with a request, including HTTP headers. The provider says its reports include browser details, installed fonts, hardware information, privacy-related settings, and system capabilities.
These are reported fields, not a conclusion about how anonymous a visitor is. The provider explicitly frames the tests as diagnostics rather than a complete security or anonymity assessment.
Capability Tables Describe Client Support
The capabilities list describes features supported by the client’s browser, then presents named entries in a result table. This makes the readout a report of client support, not a security rating.
The page lists checks for cookies, JavaScript, and HTTP headers, alongside table entries such as ActiveXControls, Cookies, and JavaScript. A listed capability therefore says what the client supports; it does not by itself establish whether the browser is secure or anonymous.
The AJAX test checks browser support for XMLHttpRequest, XMLSerializer, and XML Parser. The provider describes XMLHttpRequest as a way to communicate with a server after a page has loaded, so the test concerns a browser capability rather than an overall privacy judgment.
Pricing
The provider states that BrowserSpy.dk is free to use, and describes it as an online tool that cannot be downloaded. These statements define the access model presented on the cited pages; they do not establish terms for every possible use.
For a buyer comparing tools, free access removes a stated price from the decision, but does not answer practical questions about setup or the environments covered. Those details matter when deciding whether a browser readout applies to a particular workflow.
Confirm the Setup Path Before Relying
In general, a clear setup path helps distinguish a standalone check from one that depends on another tool.
Ask which browser and device environments the checks cover, and whether results are interpreted consistently across them. In general, the answer matters because test output can depend on the visitor’s browser, device, and privacy protections.
The Test Set Covers Distinct Browser Signals
The provider’s feature pages describe these inspection areas, according to sources checked on 2026-10-31.
- Request and network inspection: visitors can examine IP addresses and information their browser sends with a request.
- Display properties: tests cover screen dimensions, color depth, and other display characteristics.
- Cookie behavior: the check shows cookie behavior and cookies available to the site.
- Permission-based location: the geolocation test uses the browser’s permission prompt.
- Resolution distinction: the test reports the browser’s logical resolution and the display’s physical resolution.
Results Depend on Permissions and Browser Support
The readout has limits that affect how confidently a visitor can interpret it. Precise geolocation requires permission through the browser prompt, so the location check depends on a visitor’s response.
- Results vary with the visitor’s browser, device, and privacy protections; a result may therefore change across environments.
- An unavailable value may indicate that a feature is unsupported, blocked, or restricted, so the result alone does not identify the cause.
- Historical tests for Flash, Java applets, and other plugins may be unavailable in modern browsers.
- The provider says supporting all known browsers across every test is almost impossible.
- The provider asks visitors to report test errors but says a fix is not guaranteed because time is limited.
These limits make the results less useful as a consistent cross-browser comparison. Setup requirements are listed under What we could not confirm.
Compare Checkers by Reported Signals
For a browser checker, compare the fields it reports, how it explains unavailable values, and whether it separates diagnostic output from a complete security or anonymity assessment. In general, matching the tool’s stated scope to the question being investigated makes its results easier to interpret.
Useful for Inspecting a Browser’s Exposure
BrowserSpy.dk is suited to readers who want to inspect information retrievable from a visitor’s browser. The provider says remote sites, including malicious ones, can retrieve information that its tests show.
That makes the checks relevant for understanding what a page may observe, but not for establishing a complete security or anonymity position. The provider draws that boundary itself.
What we could not confirm
- Integrations and setup: which integrations are supported, if any, and what setup is required
Questions About BrowserSpy’s Readout
What can an unavailable value mean?
An unavailable value may mean that the feature is unsupported, blocked, or restricted. The result does not identify which explanation applies, so treat it as an unresolved observation rather than proof of a particular browser setting. The provider presents the tests as diagnostics, not as a complete security or anonymity assessment.
Does precise geolocation work without permission?
Precise geolocation requires the visitor’s permission through the browser prompt. Without that permission, the test cannot provide the precise location described by the provider. The outcome should be read alongside the permission state, rather than treated as a general finding about the visitor’s privacy.
Do the tests establish that a visitor is anonymous?
No. The provider says the tests are diagnostics, not a complete security or anonymity assessment. They show information retrievable from a visitor’s browser, but the provider also says results depend on the browser, device, and privacy protections. A readout is not a complete assessment.
What should visitors expect from historical plugin tests?
The FAQ says it has tried to support all known browsers, but doing so for all tests is almost impossible.
What information should an error report include?
The provider asks visitors reporting an error to include their browser name and version, along with other relevant information. It asks users to report errors but says a fix is not guaranteed because of limited time. Include details that identify the affected test and its result when contacting the site.
Where can visitors direct unanswered questions?
The provider says visitors who cannot find an answer can contact the site through its contact page. For test errors, it asks for the browser name and version and other relevant information. The provider’s response to error reports is not a promise that a fix will be made.
Use the Results as Diagnostics
Fits if you want to see information retrievable from a browser by visiting a page, as the provider describes.
Probably not if you need a complete security or anonymity assessment; the provider says its tests are diagnostics, not a complete assessment.
Main risk… the provider says supporting all known browsers across all tests is almost impossible.
Sources
Public pages the facts above were taken from, with the date each was read.
- browserspy.dk/aboutchecked
- browserspy.dkchecked
- browserspy.dk/faqchecked
- browserspy.dk/capabilities.phpchecked
- browserspy.dk/ajax.phpchecked
- browserspy.dk/resolution.phpchecked
How we put this page together
Editorial team of Affiliate Index. The editors at Affiliate Index wrote this page from the public sources listed above, which were read on 2026-10-31. Nobody tried the service in practice. If a source changes, the page is revised.
Last updated:
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