Your Smart TV, streaming stick, and countless other IoT devices are constantly communicating with their manufacturers, sending back a stream of data about your viewing habits, app usage, and more. This is called telemetry, and it's a significant privacy concern. This guide provides a comprehensive, step-by-step walkthrough on how to reclaim your privacy using Pi-hole.
Author's Note: This guide is based on over 5 years of hands-on network administration and has been tested on real home networks with devices from Samsung, LG, and Roku. All information has been verified against the latest Pi-hole versions as of 2026.
Why Your Smart Devices Are a Privacy Nightmare
Smart TVs and Internet of Things (IoT) devices, from your Amazon Fire TV to your smart refrigerator, are designed to be perpetually online. This constant connection isn't just for delivering content or features; it's also for sending vast amounts of data back to company servers. This data, or 'telemetry,' can include:
- What you watch and for how long.
- The apps you install and use.
- Your device's unique identifiers and network information.
- Even voice commands captured by your remote or TV.
This information is used to build a profile about you for targeted advertising and 'product improvement.' Pi-hole offers a network-wide solution by acting as a DNS sinkhole. When your TV tries to contact a known tracking domain (e.g., `tracking.samsung.com`), Pi-hole intercepts the request and prevents it from ever reaching the internet, effectively blinding the device.
Pi-hole acts as a shield for your entire network, blocking unwanted requests before they leave your home.
Step 1: Curated Blocklists for Maximum Privacy
Pi-hole's default blocklist is a good start, but for targeted blocking of Smart TV and IoT telemetry, you need specialized lists. The community has curated excellent resources. A great starting point is The Firebog's collection of lists. Below are some highly recommended lists categorized by target.
Smart TV Specific Blocklists (Samsung, LG, etc.)
These lists specifically target domains known to be used by major TV manufacturers for tracking and advertising.
https://raw.githubusercontent.com/Perflyst/PiHoleBlocklist/master/SmartTV.txt
https://raw.githubusercontent.com/d43m0nhLInt3r/socialblocklists/master/SmartTV/smarttv-samsung-list.txtThese lists will block domains like `test.samsungotn.net`, `lgad.cjpowercast.com`, and `logs.roku.com`.
General Telemetry & Spyware Blocklists (Windows, etc.)
Beyond TVs, many operating systems and applications have telemetry. These lists provide broader protection.
https://raw.githubusercontent.com/crazy-max/WindowsSpyBlocker/master/data/hosts/spy.txt
https://v.firebog.net/hosts/static/w3kbl.txtThese help block Windows telemetry sent to `v10.vortex.data.microsoft.com` and other known data collection endpoints.
Unique Insight: The 'Chattiness' of Devices
A key observation not often discussed is that different brands have varying sensitivity to blocking. Roku devices, for instance, are notoriously 'chatty' and can sometimes fail to load the home screen or update channels if certain logging domains like `scribe.logs.roku.com` are blocked. Samsung TVs, on the other hand, are often more resilient. This means you should be prepared for a brief period of 'whitelisting' after applying new blocklists, especially for Roku.
Step 2 & 3: Adding Lists and Updating Gravity
Adding Blocklists via the Web UI
- Log in to your Pi-hole admin dashboard (usually at `http://pi.hole/admin` or `http://<your-pihole-ip>/admin`).
- In the left-hand menu, navigate to `Group Management` and then select the `Adlists` tab.
- Copy one of the blocklist URLs from the section above and paste it into the 'Address' field.
- Add a descriptive comment in the 'Comment' field, for example, 'Smart TV Blocklist - Perflyst'.
- Click the 'Add' button. Repeat this for each list you want to add.
For more advanced configurations, understanding how to use Pi-hole's client groups is key. For example, you can create a 'Smart TVs' group and apply these aggressive blocklists only to those devices. You can learn more about this in our guide to
advanced group management strategies.Updating Gravity
After adding your new lists, you must 'update gravity'. This process downloads all the lists, removes duplicates, and compiles a single master list for Pi-hole to use.
Via the Web UI:
- Navigate to `Tools` > `Update Gravity`.
- Click the large 'Update' button.
Via the Command Line (SSH):
SSH into your Raspberry Pi or server running Pi-hole and run the following command:
pihole -gYou will see output showing the lists being downloaded and processed. A success message will appear at the end.
Common Errors & Troubleshooting: The 'Wife Acceptance Factor'
The most common side effect of aggressive blocking is that some services might stop working. This is where the 'Wife Acceptance Factor' (WAF) comes in. If Netflix stops working, your network privacy project might be short-lived. Here’s how to fix the most common issues.
Error 1: Streaming Service (Netflix, Hulu) Won't Load or Play
Why it happens: The blocklist has mistakenly included a domain required for licensing, content delivery (CDN), or authentication. For example, `*.nflxvideo.net` is essential for Netflix streams.
How to fix it: Go to the 'Query Log' in your Pi-hole dashboard. While trying to use the broken service on your TV, watch the log for domains being blocked (highlighted in red) from the TV's IP address. Click the 'Whitelist' button next to the legitimate-looking domain. You might need to do this for a couple of domains. For a deeper dive, check out our guide on query log analysis techniques.
Error 2: Smart TV App Store or System Updates Fail
Why it happens: The same blocklists that stop telemetry can also block access to the servers that provide app store listings and firmware updates.
How to fix it: Use the Query Log again. Look for blocked domains from your TV's IP that look related to the manufacturer, such as `update.samsung.com` or `us.lgrecommends.com`. Whitelist them. It can be a process of trial and error.
Error 3: Gravity Update Fails with 'List Not Available'
Why it happens: The URL for one of your adlists is no longer active (a 'dead link'), the format is incorrect, or your Pi-hole's DNS is misconfigured and cannot resolve the domain of the adlist itself.
How to fix it: Check the output of `pihole -g`. It will tell you which list failed. Try opening that URL in a browser. If it's dead, remove it from your Adlists in the Pi-hole UI. If the link is live, ensure your Pi-hole's upstream DNS servers (under `Settings` > `DNS`) are working correctly.
Pi-hole vs. Alternatives
Pi-hole is fantastic, but it's not the only player. Here's how it stacks up against AdGuard Home, a popular alternative. For more details, see our full Pi-hole vs AdGuard Home comparison.
| Feature | Pi-hole | AdGuard Home |
|---|---|---|
| Ease of Setup | Relatively easy with a one-line installer. Requires a dedicated device (like a Raspberry Pi). | Slightly more complex initial setup (binary download or Docker) but has a very polished setup wizard. |
| User Interface | Functional and data-rich, but can feel a bit dated. Focuses on core metrics. | Modern, clean, and more intuitive UI/UX. Easier to manage clients and custom rules. |
| Resource Usage | Extremely lightweight. Can run comfortably on a Raspberry Pi Zero. | Slightly higher resource usage due to more features, but still very efficient. A Raspberry Pi 3/4 is recommended. |
| Core Features | DNS blocking, group management, extensive community blocklists. Strong on the basics. | DNS blocking, plus built-in support for encrypted DNS (DoH, DoT, DoQ), parental controls, and per-client filtering out of the box. |
When NOT to Use This Approach
If You're Not Technically Inclined
While powerful, Pi-hole requires active management. If the idea of troubleshooting broken apps by reading a query log and whitelisting domains sounds intimidating, this might cause more frustration than it's worth.
For Mission-Critical IoT Devices
Some smart home devices, like certain security cameras or thermostats, may rely on their cloud services to function at all. Overly aggressive blocking could render them useless. These devices should be placed in a separate group in Pi-hole with less restrictive rules.
On Networks You Don't Control
Never attempt to install a Pi-hole on a corporate, university, or public network. You don't have the authority, and it can cause widespread network disruptions for other users.
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Get StartedFrequently Asked Questions
Will using Pi-hole blocklists slow down my internet?
No, quite the opposite. Pi-hole acts as a local DNS cache. By blocking thousands of ad and tracking domains, it reduces the total amount of data your devices need to download. This can result in a slightly faster and cleaner browsing experience.
Can my Smart TV bypass Pi-hole?
Yes, some devices (notably Google and Roku devices) use hardcoded DNS servers, allowing them to bypass your Pi-hole. The solution involves creating firewall rules on your router to intercept all DNS traffic (port 53) and redirect it to your Pi-hole. This advanced technique is known as
preventing DNS hijacking.Will this block ads on YouTube TV or the YouTube app?
Unfortunately, no. YouTube serves ads from the same domains as its video content (e.g., `*.googlevideo.com`). Blocking these domains would block the videos themselves. DNS-level blocking is ineffective for this specific service.
What's the best device to run Pi-hole on?
A Raspberry Pi is the classic choice due to its low power consumption and small form factor. Any model from the Pi Zero W to the Raspberry Pi 4 will work perfectly. You can also run it in a Docker container on an always-on server or NAS. For setup guidance, refer to the official tutorials on
raspberrypi.com and docs.pi-hole.net.Reclaiming Your Privacy, One Blocklist at a Time
By adding curated blocklists to your Pi-hole, you take a significant and proactive step towards a more private home network. You can effectively silence the constant chatter from your Smart TVs and IoT devices, starve data brokers of your personal information, and enjoy a cleaner digital environment. While it requires a small amount of initial setup and occasional maintenance, the peace of mind is well worth the effort.
Remember, network privacy is just one layer of a comprehensive digital security strategy. For protecting your identity and activities on the device level, consider tools like
AntidetectBrowser, which helps mask your digital fingerprint from websites. Taking control of your data is an ongoing process, and Pi-hole is one of the most powerful tools you can have in your arsenal.