ShieldLabsSee your browser’s risk signals
Compare the visible device and visitor identifiers, network signals and visit risk score in a regular browser, a private window and with a VPN connected.
Run Anonymity Checker ↗ (opens a new tab)Protect Product / Field guide
Checkers & live demos
Explore browser identity, VPN, proxy and IP-risk tests. Choose a provider, repeat a controlled scenario and compare the evidence behind the result.
ShieldLabs
FingerprintTry a regional-pricing workflow
Repeat the regional-pricing action before and after connecting to a VPN with an exit in another location. Inspect how the demonstration responds.
Try VPN detection demo ↗ (opens a new tab)Find a test
Browser demos assess a visit or demonstrate an action. IP lookups classify an address. These outputs answer different questions. The links open provider websites; no checker runs inside this directory.
10 of 10 testing options
Compare the visible device and visitor identifiers, network signals and visit risk score in a regular browser, a private window and with a VPN connected.
Access & scope. The demo runs on your visit when opened. Results describe that visit; a score is not a verdict about a person.
Repeat the regional-pricing action before and after connecting to a VPN with an exit in another location. Inspect how the demonstration responds.
Access & scope. An interactive demonstration of one workflow. It does not establish production detection accuracy or cover every VPN exit.
Use the dedicated VPN / IP lookup to inspect an exit address, then compare the returned network classification with another connection.
Access & scope. A security block prevented inspection in our automated browser on October 21, 2026. Access may require a normal browser or verification; current results and limits were not confirmed.
IPinfo
IP & anonymization lookupCompare the public IP, ASN, location and available anonymization flags after changing your connection.
Access & scope. The public page shows network information. Some provider details and evidence require login or a plan.
MaxMind
GeoIP web-service previewInspect the previewed location, network and IP-intelligence fields for an address. Check which fields the specific demo exposes.
Access & scope. A limited product preview. Do not assume every paid database field or production web-service entitlement is included.
proxycheck.io
IP classification lookupInspect the lookup summary, hosting / proxy / VPN flags, risk score and detection history for the same exit at the same time.
Access & scope. The public lookup can resolve the visiting IP automatically. Website and API usage limits are separate.
vpnapi.io
VPN detection testCheck the current or entered IP and record the VPN classification, then repeat after reconnecting.
Access & scope. The test prepopulates the visiting IP. Public testing availability does not establish production API quotas.
IPHub
Guest IP lookupCompare the IP classification and available proxy-type fields. Separate a missing or gated field from a negative detection.
Access & scope. The guest interface requires human verification in some sessions. Residential-proxy detail has separate limits and Pro access conditions.
IP2Location / IP2Proxy
Location & proxy lookupInspect the exit location, network information and available proxy-classification fields. Keep the dataset or package name alongside the result.
Access & scope. The public demo combines a selection of product data. Its output does not grant access to every commercial database package.
Abstract API
Public VPN detectorUse the VPN detector for an IP-level check and compare its output with the same address in other lookups.
Access & scope. Public tool credits and production API access have separate conditions. Check the provider page for the current allowance.
No matching checkers. Try another provider name or select all testing options.
Access review: October 21, 2026. IPQualityScore blocked automated inspection; IPHub displayed human verification. Other linked pages loaded during review. This is a link and interface review, not a completed benchmark or an assurance of unrestricted access.
A repeatable comparison
Change one thing. Check again.
- With your normal connection, record the exit IP, timestamp and the exact fields the checker returns.
- Change one condition: connect a VPN, use another exit or open a private window. Repeat the same browser action or IP lookup.
- Compare identifiers, network flags and missing fields separately. Do not treat every vendor score as the same scale.
- Repeat across legitimate users and relevant environments before applying the signal to signup, login or checkout.
For a product evaluation, use our parallel fraud-tool test guide.
Understand the output
Read alongside the tests
Anonymity checks: what a browser test can reveal →VPN and proxy detection tools: evaluation criteria →IP fraud scores: signals, thresholds and limits →Browser fingerprinting techniques and identity scope →Bot detection tools and controlled testing →Our methodology and editorial standards →Questions about the checkers
Does Protect Product run these checks?
This page is a directory. A test opens on the provider’s own website, which controls the check, data collection and available fields. No third-party checker is embedded here.
Can a public demo prove that a fraud tool is accurate?
No. A demonstration shows the output for a limited scenario. Assess a candidate on a representative labeled traffic sample, including legitimate users, missing responses and the cost of false positives.
Why can two checkers disagree about the same IP?
Providers can use different datasets, refresh cycles, definitions and signals. Record the exact exit IP, time and field names before comparing. A browser-level result also has a different scope from an IP lookup.
Is a VPN or proxy result evidence of fraud?
A network classification alone does not establish abuse. Legitimate users also use privacy tools, shared networks and corporate VPNs. Combine the signal with the account event and offer a recovery path before taking action.