Network privacy diagnostics

Free IP checker, VPN protection test, DNS leak test, and browser fingerprint scan.

Run quick tests before using a VPN, proxy, travel network, or privacy-focused browser. Results stay in your browser except for the public lookup APIs needed to perform each test.

How tests work
Waiting for scan Public network identity
IP
DNS Not tested
VPN Not tested
Fingerprint Not tested

IP checker

Your public IP address

Not checked Run the test to identify the public address seen by websites.
Location
-
ISP / ASN
-
Timezone
-
Connection type
-
Last checked
Never

DNS leak test

Resolver visibility

Idle

Browsers cannot directly read your operating system DNS servers. This test compares public resolver responses and checks whether DNS-over-HTTPS endpoints reveal resolver metadata. A full commercial DNS leak test needs a backend with authoritative DNS logging.

Run the test to inspect available resolver signals.

VPN protection

Protection score

Idle
-- /100
Assessment Run the check to estimate visible VPN protection.

The score combines public IP identity, DNS resolver signals, WebRTC exposure, and browser locale consistency. A full VPN audit still needs backend DNS logging.

Run the VPN check to see protection signals.

Browser fingerprint

Browser and device signals

Fingerprint hash Not calculated
Unknown

How it works

Network privacy tests built for quick, readable results

IP lookup

The site requests public lookup services to show the IP address, network, approximate city, country, ASN, and timezone visible to websites you visit.

DNS visibility

Frontend-only DNS tests are limited by browser security. For the strongest leak detection, deploy a server endpoint that creates a unique hostname and records which resolver queries it.

VPN protection

The score checks whether public IP, DNS resolver, WebRTC, timezone, and language signals look consistent or expose information that a VPN user may want to review.

Fingerprinting

Browser, display, language, timezone, hardware, canvas, and WebGL signals are combined into a local hash so visitors can see how distinctive their browser appears.

FAQ

Questions people ask before trusting a VPN

What does the VPN protection score measure?

The score estimates visible browser-side VPN protection by checking public IP identity, DNS resolver signals, WebRTC exposure, timezone consistency, and browser language region.

Can a browser-only DNS leak test detect every DNS leak?

No. Browser-only DNS checks can compare public resolver signals, but a complete DNS leak test needs a backend with authoritative DNS logging for unique test hostnames.

Does NetScope store fingerprint results?

The browser fingerprint hash is calculated locally in the visitor's browser. Public lookup APIs are only used for the network tests needed to show IP and DNS-related signals.

Privacy guide

What to do if something looks exposed

Your IP shows the wrong region

Reconnect your VPN, choose a closer server, clear browser proxy settings, and rerun the IP check.

DNS data does not match your VPN

Enable the VPN provider's private DNS option, disable split tunneling for the browser, and retest.

Your fingerprint looks highly unique

Reduce extensions, use a mainstream browser profile, avoid uncommon fonts, and keep privacy settings consistent.