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Selecting Appropriate Lists

One of the most important factors to consider when using PeerBlock is the selection of appropriate lists.  But how do you know which lists to use?  This documentation will help you understand which lists are appropriate for you to use with PeerBlock.  This document does not cover how to use lists, only knowing which lists to use.  For information on how to use lists, see Using Lists.

It is important to know where to find lists, and the quality of these lists.  One popular source of lists is

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After looking around, it is clear that there are many lists for many different purposes.

In deciding which lists to use, you first need to know what you want to use the list for.  For example, would you like more protection when using P2P software, or would you like more protection from your government?  Once you know yourself what you need a list for, you can start looking for a list that fits your needs.  Many such lists can be found on  On, click "Lists" (as pictured above), and then the "List Name" to view the details of lists.  Once you have found a list that's description fits your needs, you need to know the quality of this list.

There are many subjective indicators of quality, and as such there is no 'one-size-fits-all' test.  Factors that need to be considered include the number of IP addresses and ranges in the list; more does not necessarily mean better.  Take into account any user opinions of lists, such as those posted on or the PeerBlock Forums, and feel free to ask any questions you might have about the list on either website (the PeerBlock forums are typically more active and might provide more information.).

The most important factor however is the author of the lists.  Just as you would not necessarily trust an unknown author of a book, unknown list authors are typically harder to trust to keep their lists up-to-date and correct.  Some well-known list authors include Bluetack (also known as "B.I.S.S"), TBG and I-Blocklist.  All of these lists are available for free from

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Be careful using too many block lists, as blocking too many IP addresses can seriously degrade your internet experience.  For example, blocking too many IPs may reduce the number of total peers in P2P software (slowing your downloads), may stop you from browsing many corporation's websites, or hamper online gaming.

Clearly, selecting lists is a very fine balance!  Once you have decided on which lists you wish to use in PeerBlock, see Using Lists.

If you would like any help selecting lists that suit you, feel free to create a thread on the PeerBlock Forums, questions are typically answered very fast.  When taking advice from people regarding lists, be sure to remember that people's needs differ, and as such what works for one person may not be the best setup for you.

Note that PeerBlock does not author any lists, and as such does not guarantee the accuracy or protection provided by them.  The lists included are very popular lists, and are trusted by many people.  For your reference, the default PeerBlock lists are:

PeerBlock List Name: Author's List Name: Author: Author's Description:
P2P level1 Bluetack Companies or organizations who are clearly involved with trying to stop filesharing.  Companies which anti-p2p activity has been seen from.  Companies that produce or have a strong financial interest in copyrighted material.  Government ranges or companies that have a strong financial interest in doing work for governments. Legal industry ranges.  IPs or ranges of ISPs from which anti-p2p activity has been observed.
Spyware spyware Bluetack Known malicious spyware and adware IP Address ranges.
Advertising ads Bluetack Contains advertising trackers and a short list of bad/intrusive porn sites.
Education edu Bluetack Contains all known Educational Institutions.