# Protecting privacy and free speech through DNS pre-caching

**URL:** https://discourse.pi-hole.net/t/protecting-privacy-and-free-speech-through-dns-pre-caching/2027
**Category:** Feature Requests
**Created:** [March 4, 2017, 4:42pm UTC](https://discourse.pi-hole.net/t/protecting-privacy-and-free-speech-through-dns-pre-caching/2027 "2017-03-04T16:42:05Z")
**Posts on this page:** 1
**Showing post:** 1

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### Author: ![armchair](https://discourse-cdn.pi-hole.net/letter_avatar_proxy/v4/letter/a/53a042/32.png) [@armchair](https://discourse.pi-hole.net/u/armchair)
#### Post date: [March 4, 2017, 4:42pm UTC](https://discourse.pi-hole.net/t/protecting-privacy-and-free-speech-through-dns-pre-caching/2027/1 "2017-03-04T16:42:06Z")

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We all know the DNS system is pretty broken.

- Your external DNS resolver (usually your ISP) knows which websites you visit by the DNS requests you make. In a not too distant future they might sell access to this data.
- DNS requests aren't encrypted.
- More governments are storing your DNS requests at the ISP level, like in the UK.

A solution is to copy large parts of the world's DNS data onto your Raspberry Pi-Hole. Pre-fill your DNS cache as it were.

This has a lot of advantages:

- Really quick DNS resolving (it's local)
- Privacy from profilers and advertisers that use DNS (like Google)
- Protection form governments that log this data now (hello UK!)

And why not? You could fit your country's domain and the .com domain on a 8gb SD card. There are lots of providers who share this DNS data. Pi-Hole's could even replicate this data between them. In the real world DNS name-data doesn't really change all that often.

Pi-Hole could protect you from tracking in a much more complete way.

Biggest feature EVAR! 🙂

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_[View the full topic](https://discourse.pi-hole.net/t/protecting-privacy-and-free-speech-through-dns-pre-caching/2027)._