Inspector anti-fraud checks
See how websites inspect your browser: which APIs they call, which anti-fraud services they use, and which ports on your computer they access. The extension saves reports as PDF or JSON and blocks unnecessary APIs.
PRO MODE
User scenario analysis report
ebay.com
Features
Dozens of fingerprinting techniques on one screen
Results in the extension window or Chrome side panel: operation counters and previews of values the website has already read.
What the extension tracks
Canvas
Pixel reading and image export. You can view the image the website has already read directly in the extension.
WebGL and WebGPU
Calls to graphics APIs and checks of GPU capabilities.
Fonts and geometry
Text measurements, installed-font checks, and page element dimensions.
Web Audio
Audio contexts, offline rendering, and access to the audio analyser.
WebRTC
Connection creation, STUN/TURN settings, media parameters, and certificate fingerprints.
Browser and device
User-Agent, Client Hints, screen and window parameters, CPU thread count, and memory size.
Permissions and actions
Browser permission checks, pointer-property reads, and Idle Detection.
New browser APIs
Calls to WebAssembly, timing APIs, WebNN, and Chrome built-in AI APIs.
Environment
Battery, network type, keyboard layout, window management, and Compute Pressure.
Network signals
Attempts to connect to local ports, port numbers, request sequences resembling DNS tests, and response headers.
Identification resources
Anti-fraud services on the page, installed-extension checks, and Google experiment IDs from X-Client-Data.
Check any website
Install the extension, open any page, and see which APIs it calls.
Install in ChromeSample report
What ebay.com checks in 33 seconds
A real Pro mode report: 4 pages, 249 requests, 7 third-party domains.
Recognized protection and identification services
Recognized during recording
LexisNexis ThreatMetrix
Local port check · Possible port scanning
Interaction map
Third-party resources loaded by pages
detected techniques
Canvas, WebGL, audio, fonts, screen and browser parameters. Each technique includes a counter, phase, data source, and limitations.
attempts to connect to local ports
Among them are 3389 (RDP), 5900–5903 (VNC), 5938 (TeamViewer), and 7070 (AnyDesk). These ports are used by remote-access software.
third-party domains
online-metrix.net, forter.com, perfdrive.com, and four more. The report shows what each page loaded.
recognized anti-fraud service
LexisNexis ThreatMetrix: the WebRTC server address matched a catalog rule.
Data is taken from the report. The full ebay.com report is 120 pages long.
Reports
Record a scenario and save the report
Pro mode records up to 10 minutes of website activity. The report is useful for investigations, audits, and teamwork.
Start recording
Choose a website and start Pro mode. Recording lasts up to 10 minutes and can be stopped at any time.
Run through the scenario
Registration, sign-in, cart, payment. The extension records navigation, sanitized page titles, URL patterns, and detected techniques.
Save the result
Export JSON for development and audits, or save a PDF using Chrome print.
What the report includes
What the report does not include
API blocking
15 switches for API blocking
You control blocking: set default rules and configure exceptions for individual websites.
Benefits
Your data stays in your browser
Analysis runs locally
The extension runs in your browser; analysis results are not sent to our servers. Reports remain with you until you choose to export them.
Reports without personal data
Credentials, parameters, and fragments are removed from URLs. Cookies, forms, and request bodies are not saved.
Transparent conclusions
An API call by itself does not prove tracking. That is why each technique in the report includes confidence, data source, and limitations.
Who it is for
Who can benefit from the extension
Media buyer
See which anti-fraud services a platform uses and what they check before launching accounts.
Anti-fraud engineer
Compare your protection with other websites and see which signals third-party services collect.
Security researcher
Document fingerprinting and port scanning in reports for audits and publications.
Developer
Check which APIs your scripts and connected SDKs call before release.
Privacy specialist
See which third-party domains a website loads and which APIs they call.
QA engineer
Record the scenario and attach a JSON or PDF report to the bug report.
Developer
Dr. Dmytro Momot
Vektor T13CEO & Founder Detect Expert
Cybersecurity and anti-fraud researcher with 17+ years of experience. Developer of an anti-detect platform and IP Auditor.
Already using it?
Rate Detect.Expert in the Chrome Web Store
The extension is free. Rating it takes a minute and helps others find Detect.Expert in the store. Found a bug or missing a feature? Leave a review — we read every one.
Click a star to open the Reviews tab in the Chrome Web Store
FAQ
Frequently asked questions
Is the extension paid?
No. Detect.Expert is free and installs from the Chrome Web Store.
Where does the analysis data go?
Nowhere. Analysis runs in your browser, and reports stay local until you export them.
If a website calls an API, is it fingerprinting me?
Not necessarily. The same APIs are used by players, editors, and video calls. The extension shows what was called and how often, while the report gives confidence and limitations for each technique.
What is Pro mode?
A scenario recording of up to 10 minutes: navigation, sanitized page titles and URL patterns, permitted network metadata, and analysis results. You can export JSON or save a PDF.
Can API blocking break websites?
It can, if a website depends on that API. That is why blocking is enabled manually: for all websites or only selected ones.
Is this an anti-detect browser?
No. The extension shows checks and blocks individual APIs, but it does not spoof the fingerprint. To change browser, OS, and hardware fingerprints, use Antidetect System.
Which browsers does it support?
Google Chrome on desktop. The interface is translated into 12 languages, including Russian and Ukrainian.
Where can I report a bug?
Leave a review in the Chrome Web Store. We read every review and consider them in updates.
See what a website checks in your browser
Free Chrome extension. Analysis runs locally.
