Pi-hole
DNS sinkhole that blocks ads and trackers across your entire network from one device.
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Use it free
Open the official tool or demo — no account needed.
Self-host it
Run the open-source version on your own infrastructure.
What is Pi-hole?
Pi-hole is an open-source ad-blocking tool designed to intercept and block advertising requests at the network level. It functions as a DNS server, preventing devices on a network from accessing known ad-serving domains. By acting as a centralized point of control, Pi-hole eliminates the need for individual ad blockers on each device, offering network-wide protection. It is widely used by households, small businesses, and organizations seeking to reduce ad clutter, improve browsing speed, and mitigate data usage from ads. The tool addresses the problem of pervasive online advertising, which can degrade user experience, waste bandwidth, and enable tracking by third-party entities. Its lightweight architecture and compatibility with various operating systems make it accessible to users with differing technical expertise.
How it works
Pi-hole is a network-wide ad blocker that operates by intercepting Domain Name System (DNS) queries. When a device attempts to access a website, Pi-hole checks the request against a list of known ad domains. If a match is found, the request is blocked, preventing the ad from loading. This approach ensures ads are blocked before they reach the user’s browser or application. The tool is primarily used to eliminate intrusive advertisements, reduce bandwidth consumption, and enhance privacy by blocking tracking scripts. It is particularly effective in environments where multiple devices share a network, such as homes, offices, or public Wi-Fi setups. Pi-hole supports blocking ads across all devices connected to a network, including smartphones, smart TVs, and IoT devices. It integrates with DNS protocols like DHCP to automatically configure devices to use Pi-hole as their DNS server. The tool also allows users to customize block lists, add custom domains, and monitor blocked requests through a web-based interface. Additionally, Pi-hole can be paired with a VPN to extend ad-blocking capabilities to mobile devices using cellular data.
How to use it
- 1Install a supported operating system (e.g., Raspberry Pi, Ubuntu) or use a Docker container. 2. Run the automated installer to deploy Pi-hole, which configures the DNS server and block lists. 3. Set your router’s DHCP settings to assign Pi-hole’s IP address as the default DNS for all devices. 4. Verify the setup by checking if ads are blocked on connected devices. Practical tips include using the Pi-hole web dashboard to manage block lists and troubleshoot connectivity issues.
What it can do
- network-wide ad blocker
Use cases
Assumptions and limitations
Assumptions
- source: https://github.com/pi-hole/pi-hole
- license: EUPL-1.2 — free to use
- privacy: Self-hosted — you control your data
Limitations
- Requires manual configuration of DNS settings on all networked devices
- Dependent on up-to-date block lists, which may lag behind new ad domains
- Limited real-time threat intelligence compared to dedicated cybersecurity tools
- No built-in analytics for detailed traffic monitoring
- Potential false positives that may block legitimate websites
Understanding the result
DNS sinkhole that blocks ads and trackers across your entire network from one device.
Tool details
- Clearly flagged when a network request is needed.
- No account, no sign-up, and no tracking of your content.
- Powered by (MIT).
- Built with
- (pi-hole/pi-hole)
- License
- MIT
- Runs locally
- No — requires a network request
- Verification
- Not yet verified
- Input
- Query
- Output
- Text
Built with pi-hole/pi-hole. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.
- Built with
- License
- MIT
Open-source project
OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.
References
- / — GitHub Repository
Upstream project · GitHub
- EUPL-1.2 License
Upstream project
Frequently asked
What is Pi-hole and how does it block ads?
Pi-hole is an open-source DNS server that blocks ads by intercepting and rejecting requests to known ad domains. When a device attempts to access a website, Pi-hole checks the domain against its block list. If a match is found, the request is blocked, preventing the ad from loading. This method works across all devices on the network, including browsers, apps, and IoT devices.
How does Pi-hole handle DNS queries?
Pi-hole operates as a DNS server, intercepting queries before they reach external DNS providers. It uses a combination of local block lists (like EasyList) and user-defined domains to determine if a request should be blocked. If a domain is not in the block list, Pi-hole forwards the query to a public DNS resolver (e.g., Google DNS) to resolve the IP address.
How do I set up Pi-hole on my home network?
First, install Pi-hole on a compatible device (e.g., Raspberry Pi or Ubuntu server). Use the automated installer to configure the DNS server and block lists. Next, log in to your router’s admin panel and set Pi-hole’s IP address as the default DNS for all devices. Finally, verify the setup by checking if ads are blocked on connected devices through the Pi-hole web dashboard.
How does Pi-hole compare to browser ad blockers like uBlock Origin?
Pi-hole provides network-wide ad blocking, whereas uBlock Origin works only on individual browsers. Pi-hole blocks ads before they reach devices, offering protection for non-browser applications and IoT devices. However, Pi-hole requires network configuration, while uBlock Origin is easier to install on a single machine. Both tools use similar block lists but differ in scope and deployment complexity.
What should I do if Pi-hole is not blocking ads?
First, verify that devices are using Pi-hole’s DNS server by checking network settings. Ensure the block list is up to date and that the domain in question is listed in the block list. Check for typos in the domain name or IP address. If the issue persists, review Pi-hole’s logs for errors and ensure the firewall allows traffic to the Pi-hole server.