Check your connection, inspect browser signals, or look up DNS records. Choose the test that answers your question.
A site's risk engine sees more than your country. This folds proxy / VPN / Tor / datacenter flags, blacklists and abuse reports into one 0–100 score: the higher, the more your exit looks like ordinary home broadband.
Open toolEverything runs in your browser and takes about a minute: speed, latency, whether common sites answer, and how reliably images load.
Open toolLook up A, AAAA, CNAME, MX, TXT and NS records using a public DNS resolver.
Open toolWebRTC can bypass a proxy and expose your local or LAN IP.
Open toolMake the browser resolve one-off hostnames and see which country's DNS resolver asks on your behalf.
Open toolJA3 / JA4 and HTTP/2 fingerprints of the TLS handshake, observed by fingerproxy on a separate hostname and compared with the UA.
Open toolPaste any UA string and parse browser, engine, OS and device on the server.
Open toolPlatform, brand and version data the browser volunteers via User-Agent Client Hints.
Open toolCheck WebGPU availability, the adapter information your browser exposes, supported features and numeric limits.
Open toolGPU model, driver and rendering characteristics.
Open toolText and shapes drawn on a canvas render slightly differently on every device.
Open toolNumeric characteristics of the audio processing pipeline.
Open toolWhich fonts are installed on the system.
Open toolTraces left by automated and headless browsers.
Open toolBrowser time zone, UTC offset and clock, compared with the IP's time zone.
Open toolIdentifies the real JS engine (V8 / SpiderMonkey / JavaScriptCore) from error wording, stack format and libm edge values, and compares it with the engine the UA claims.
Open toolChecks 70+ natives that spoofing tools like to hook and reports the ones that are no longer the browser's own implementation.
Open toolThe speechSynthesis voice list comes from the operating system and exposes the real OS under a fake UA.
Open toolPixel hash and glyph widths of a fixed emoji string; the emoji font differs per OS.
Open tool