Anonymity checkers
BrowserSpy.dk
BrowserSpy.dk works as a free online collection of browser information and privacy tests, and its tests are diagnostics rather than a complete security or anonymity assessment. The distinction matters: a missing value may reflect a feature that is unsupported, blocked, or restricted, rather than a privacy result.
For readers checking what a browser reveals during ordinary browsing, the key question is how to interpret each result without treating it as a full anonymity check.
Editorial review based on public sources, without hands-on testing; facts checked on 2026-10-31.
This page contains no partner link to this service.
- Logo
All logos are trademarks of their holders, displayed solely to show which service is meant.- Name
- BrowserSpy.dk
- Category
- Anonymity checkers
- Official site
- browserspy.dk · No link provided
- Facts checked
What BrowserSpy’s pages put in scope
The homepage and About page describe these checks, according to sources checked on 2026-10-31.
- Browser identification: name, version, and reported capabilities (homepage, checked 2026-10-31).
- Network address: the address seen by the web server (homepage, checked 2026-10-31).
- Request information: details the browser sends with a request (homepage, checked 2026-10-31).
- Display properties: screen dimensions and color depth (homepage, checked 2026-10-31).
- Cookie behavior: cookies available to the site (homepage, checked 2026-10-31).
- Browser and device details: installed fonts and hardware information (About page, checked 2026-10-31).
What does free use cover?
The provider describes BrowserSpy.dk as free to use, with access provided through an online tool rather than a downloadable application. Its stated free access is the relevant pricing term for someone deciding whether to run the browser checks.
BrowserSpy’s FAQ says the tool cannot be downloaded because it is online. That describes how the service is accessed, not a separate desktop installation or downloadable version. The provider’s free-use statement does not, by itself, establish terms beyond using the online tool.
Which browser capabilities appear?
The capabilities page describes results as features supported by the client’s browser, rather than as a direct verdict on privacy. It lists tests for cookies, JavaScript, and HTTP headers, alongside a capability result table with entries such as ActiveXControls.
The list also covers browser details, privacy-related settings, and system capabilities. A separate page checks support for XMLHttpRequest, XMLSerializer, and XML Parser; the provider explains that XMLHttpRequest can communicate with a server after a page has loaded. A capability being present or supported should be read as a browser feature result, not as proof of a privacy weakness.
What should support clarify before registration?
Before using a browser diagnostic, ask what information its output is meant to represent and how to distinguish a failed check from an unavailable result. Those questions matter when interpreting browser signals, since a value can be unavailable because a feature is unsupported, blocked, or restricted.
Ask what integrations, if any, are involved and what setup the service expects. Also ask what scope the provider considers appropriate for the results, so that a diagnostic is not mistaken for a broader assessment. The answers should clarify how the tool fits the intended workflow without treating individual test results as a complete conclusion.
How do permission and display checks work?
The geolocation test uses the browser’s permission prompt, and the provider says precise geolocation requires the visitor’s permission. A result from that check therefore depends on the permission condition, not solely on the test page.
The resolution test distinguishes the browser’s logical resolution from the display’s physical resolution. The page describes DPI in terms of display pixels within an inch and lists JavaScript as a way to detect it. Logical-resolution results are also displayed in inches and centimeters.
The GZip page explains that websites often use compression to reduce data sent to a browser, with CSS and JavaScript files identified as common examples. It describes the browser announcing support through a GZip accept encoding header, and the test result reports support via gzip.
Which stated conditions help interpretation?
The provider frames BrowserSpy.dk as showing information retrievable from a browser by visiting a page. That scope gives readers a concrete way to understand what the displayed results represent, without treating them as a complete assessment.
- The provider describes the tool as free and online, and says it cannot be downloaded.
- The capabilities page explicitly describes its list as features the client browser supports.
- The geolocation check makes the permission condition visible through the browser prompt.
Which limits narrow the test results?
BrowserSpy’s results can vary with the browser, device, and privacy protections in use. The provider also describes the tests as diagnostics, not a complete security or anonymity assessment.
- Historical tests for Flash, Java applets, and other plugins may be unavailable in modern browsers.
- The FAQ lists verified browser versions that include Firefox 2 and 3 and Internet Explorer 6 and 7.
- The provider says it has tried to support all known browsers, but supporting all of them across every test is almost impossible.
- The FAQ says a reported test error may not be fixed because the provider has limited time. It asks people reporting errors to include their browser name and version and other relevant details.
Several details are missing; they are listed under What we could not confirm.
Which checker criteria should comparisons match?
Compare browser checkers by the parameters they report, the basis used to interpret results, whether access is free or paid, and the limits stated by each provider. Check privacy statements too, so the comparison covers how visitor information is handled.
Who can use BrowserSpy’s diagnostics?
BrowserSpy’s history starts with JavaScript utilities for identifying a browser’s name and version. The provider says the tests were later rewritten, with some added and others removed as obsolete.
The diagnostics may suit readers who want to see information a page can retrieve from a browser. The provider says remote sites, including malicious ones, can retrieve information that BrowserSpy displays. That makes the scope relevant beyond a single test page, but it does not turn the results into a complete anonymity assessment.
What we could not confirm
- Integrations: which services connect to BrowserSpy
- Setup requirements: what configuration, if any, is needed
- Paid access: whether any paid plans or charges exist
- Data handling: retention, logging, and use of visitor test information
- Comparison basis: reference browsers, populations, or other anonymity checks
What do the BrowserSpy FAQ and test pages answer?
What information does BrowserSpy show?
BrowserSpy shows information that can be retrieved from a browser by visiting a page, according to its test pages. That describes the kind of information displayed, not a full security or anonymity assessment. Read individual results within that diagnostic scope.
What can an unavailable value mean?
An unavailable value can mean that a feature is unsupported, blocked, or restricted, according to the provider. It should not be read on its own as proof of anonymity or as a definitive privacy verdict. The browser and its settings affect what a test can report.
How does permission affect geolocation?
The geolocation check uses the browser’s permission prompt, and the provider says precise geolocation requires the visitor’s permission.
Can BrowserSpy be downloaded?
The FAQ says BrowserSpy is online and cannot be downloaded. The provider describes the tool as free to use. This answers how the service is accessed; it does not establish terms beyond the provider’s stated free use.
What should an error report include?
The FAQ asks people who find an error to contact the site and include their browser name and version, along with other relevant information. The provider says limited time means a fix is not assured.
Where does the FAQ direct people who need help?
The FAQ directs people who cannot find an answer to the site’s contact page. It also asks for relevant browser details when reporting test errors. The provider’s contact route is therefore the stated option for questions that the FAQ does not answer.
Are BrowserSpy’s stated terms enough to try?
Fits if… a free online diagnostic of browser-exposed information matches the task, and variable results are acceptable.
Probably not if… the requirement is a complete security or anonymity assessment; the provider explicitly limits the tests to diagnostics.
Main risk… treating a result as conclusive when browser, device, and privacy protections can affect what appears.
Sources
Below are the public pages behind the facts above, together with the date each one was read.
- browserspy.dkchecked
- browserspy.dk/aboutchecked
- browserspy.dk/faqchecked
- browserspy.dk/capabilities.phpchecked
- browserspy.dk/ajax.phpchecked
- browserspy.dk/resolution.phpchecked
- browserspy.dk/gzip.phpchecked
Notes on the making of this review
Editorial team of Profile Workshop. Profile Workshop compiled this page from the public sources above as they stood on 2026-10-31. We did not test the service ourselves. We revise the text whenever those sources are updated.
Last updated:
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