Generates a host list of first-party trackers for ad-blocking. https://hostfiles.frogeye.fr
 
 
Go to file
Geoffrey Frogeye a0a2af281f Added possibility to add personal sources 2019-11-11 11:19:46 +01:00
dist Added possibility to add personal sources 2019-11-11 11:19:46 +01:00
subdomains Added possibility to add personal sources 2019-11-11 11:19:46 +01:00
temp Added possibility to add personal sources 2019-11-11 11:19:46 +01:00
websites Added possibility to add personal sources 2019-11-11 11:19:46 +01:00
.gitignore Added possibility to add personal sources 2019-11-11 11:19:46 +01:00
README.md Added possibility to add personal sources 2019-11-11 11:19:46 +01:00
collect_subdomains.py Loosely error-proofed subdomain collection 2019-11-10 23:22:21 +01:00
collect_subdomains.sh Added possibility to add personal sources 2019-11-11 11:19:46 +01:00
eulaurarien.sh Added possibility to add personal sources 2019-11-11 11:19:46 +01:00
filter_subdomains.py More error-proofing 2019-11-10 23:07:21 +01:00
filter_subdomains.sh Added possibility to add personal sources 2019-11-11 11:19:46 +01:00
regexes.py Added possibility to add personal sources 2019-11-11 11:19:46 +01:00

README.md

eulaurarien

Generates a host list of first-party trackers for ad-blocking.

DISCLAIMER: I'm by no way an expert on this subject so my vocabulary or other stuff might be wrong. Use at your own risk.

What's a first-party tracker?

Traditionally, websites load trackers scripts directly. For example, website1.com and website2.com both load https://trackercompany.com/trackerscript.js to track their users. In order to block those, one can simply block the host trackercompany.com.

However, to circumvent this easy block, tracker companies made the website using them load trackers from somethingirelevant.website1.com. The latter being a DNS redirection to website1.trackercompany.com, directly pointing to a server serving the tracking script. Those are the first-party trackers.

Blocking trackercompany.com doesn't work any more, and blocking *.trackercompany.com isn't really possible since:

  1. Most ad-blocker don't support wildcards
  2. It's a DNS redirection, meaning that most ad-blockers will only see somethingirelevant.website1.com

So the only solution is to block every somethingirelevant.website1.com-like subdomains known, which is a lot. That's where this scripts comes in, to generate a list of such subdomains.

How does this script work

It takes an input a list of websites with trackers included. So far, this list is manually-generated from the list of clients of such first-party trackers (latter we should use a general list of websites to be more exhaustive). It open each ones of those websites (just the homepage) in a web browser, and record the domains of the network requests the page makes.

Additionaly, or alternatively, you can feed the script some browsing history and get domains from there.

It then find the DNS redirections of those domains, and compare with regexes of known tracking domains. It finally outputs the matching ones.

Requirements

Just to build the list, you can find an already-built list in the releases.

(if you don't want to collect the subdomains, you can skip the following)

  • Firefox
  • Selenium
  • seleniumwire

Usage

Add personal sources

The list of websites provided in this script is by no mean exhaustive, so adding your own browsing history will help create a better list. Here's reference command for possible sources:

  • Pi-hole: sqlite3 /etc/pihole-FTL.db "select distinct domain from queries" > /path/to/eulaurarien/subdomains/my-pihole.custom.list
  • Firefox: cp ~/.mozilla/firefox/<your_profile>.default/places.sqlite temp; sqlite3 temp "select distinct rev_host from moz_places" | rev | sed 's|^\.||' > /path/to/eulaurarien/subdomains/my-firefox.custom.list

Collect subdomains from websites

This step is optional if you already added personal sources. Just run collect_subdomain.sh. This is a long step, and might be memory-intensive from time to time.

Extract tracking domains

Make sure your system is configured with a DNS server without limitation. Then, run filter_subdomain.sh. The files you need will be in the folder dist.

Contributing

Adding websites

Just add the URL to the relevant list: websites/<source>.list.

Adding first-party trackers regex

Just add them to regexes.py.