Shield Status
Adblock / DNS Blocking
Tests if common ad delivery and tracking script CDNs are successfully intercepted.
Status
Waiting...
Test Your Adblocker & Pi-hole
An instant, secure audit of your connection to check if network-level trackers, ad servers, and privacy leaks are fully blocked.
Performance
DNS Resolution Speed
Measures response times of popular secure DNS over HTTPS (DoH) providers in your browser.
Resolver Speed
Waiting...
Identity
Connection Profile
IP Address: Detecting...
ISP / AS: Detecting...
Location: Detecting...
Privacy
Data Leak Check
Determines whether third parties can track your true location and network-level settings.
Privacy Status
Waiting...
Frequently Asked Questions
Learn how network-level privacy shields and DNS adblockers protect your digital footprint.
A network-level adblocker like a Pi-hole, AdGuard Home, or custom secure DNS profile works by intercepting lookup requests for known tracking domains before they leave your router. holeTest.com actively queries real-world telemetry endpoints (such as Google DoubleClick and Amazon Ad Systems). If our background diagnostics report SECURE, your system successfully blacklisted those connections. If they return allowed, your network traffic is exposed to tracking scripts.
Browser extensions (like uBlock Origin) run inside your web browser and hide elements cosmetically while blocking extensions. Network-level systems (like Pi-hole or secure encrypted DNS) run at the boundary of your home network. They protect every device in your house—including smart TVs, iPhones, tablets, and IoT hardware—without requiring software installations on each independent client. Using both together offers the strongest privacy profile available.
By default, your Internet Service Provider (ISP) processes every single web search or domain address you visit via unencrypted plain-text DNS over port 53. This allows corporate entities to track, catalog, log, and potentially sell behavioral browsing logs. Switching to an encrypted DNS standard like **DNS-over-HTTPS (DoH)** or **DNS-over-TLS (DoT)** seals your connections in a cryptographically secure tunnel, hiding your traffic signatures from third-party snooping.