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📃 How to Acquire the Blocklist

• The first option is to generate your own list using the blocklist generator - recommended for users who want to tailor the list to their specific needs and preferences.
• The second option is to use the default list - ideal for those who prefer a quick and straightforward solution without any configuration.

[!TIP]
Do you have questions or want to receive notifications about important changes or new features in my repositories? Join my Discord server! If you do not use Discord, you can also open an issue on GitHub.

[!IMPORTANT]
Please do not download the lists too frequently (e.g., every few hours). It is recommended to download them no more than once per day. Frequent downloads are unnecessary, as the lists are updated only twice during the night (Polish time). More information can be found here.

[!IMPORTANT]
I do not allow commercial use of my lists. Lists that I did not create are distributed in accordance with the licensing terms set by their original authors.
If you wish to use the Sefinek Blocklist Collection for commercial purposes, please contact me via email.

❌ How to Report a False Positive?

Please visit https://blocklist.sefinek.net/false-positives. Within 2 days after the analysis is completed, the specified domain will be added to the whitelist. Subsequently, usually within 1 day, the false positive entry will be automatically removed from the blocklist via GitHub Actions.

📥 Update Schedule

• This repository:
  The blocklists in this repository are updated every 3 hours via GitHub Actions.
• Remote (blocklist.sefinek.net):
  Synchronization takes place daily at 01:00 and 06:00 (24-hour format, Poland time CET, UTC+1).
  Cron expression: 0 1,6 * * * (at minute 0, at hours 1 and 6).

[!IMPORTANT]
Visit this page to check the time of the next repository synchronization in your time zone.
This will help you schedule your cron job more effectively.

🌍 Links

• Blocklist generator (for Pi-hole, AdGuard, etc.)
• Homepage of blocklist.sefinek.net (metrics, update schedule, etc.)
• File explorer (/generated/v1)
• Git pull logs (synchronization): Remote [github.com] → Local [blocklist.sefinek.net]

✨ Default Blocklist

📃 Select your DNS server and copy the URLs »
🔡 View the regex list »

✅ Good to Know

• New lists are added periodically. You can also install the Sefinek Blocklists app from the Microsoft Store for quick and convenient access to these lists.
• It is recommended to regularly check this repository for updates and potential changes.
• While this blocklist can improve your privacy and security, it may occasionally block legitimate content or services unintentionally.

🤝 Contributing

Contributions are welcome - if you have suggestions or ideas, open a Pull request with your proposed changes. Your efforts are greatly appreciated and help make this project better for everyone. Thank you!

False positive

Add the incorrectly blocked domain to whitelists/main.txt, following the existing entries as a reference, then submit a Pull request. To report a false positive without opening a pull request, visit: https://blocklist.sefinek.net/false-positives.

Submitting a new domain for blocking

Add the domain to the appropriate file in the lists folder, matching the relevant category. Make sure it is not already listed, then submit a Pull request with a brief explanation.

Branches

The blocklists branch is generated automatically and should not be modified manually. Any changes made directly to this branch will be overwritten on the next GitHub Actions run. Pull requests should target the main branch only.

📥 How to Clone?

git clone --branch main --single-branch https://github.com/sefinek/Sefinek-Blocklist-Collection.git
cd Sefinek-Blocklist-Collection
git fetch --depth=1 origin blocklists:blocklists
git worktree add blocklists blocklists

🌠 Other Useful Repositories

Cloudflare-WAF-Expressions | Malicious-IP-Addresses | Blacklisted-Emails

🐈 Sources of Images Used

📝 CC BY-NC-ND 4.0 License

Copyright © 2025-2026 Sefinek