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Community & Business Groups

Content Blocking Community Group

The mission of this group is to improve web standards by conveying to Working Groups use cases from a content blocking perspective (for example web technologies used in areas related to ad blocking, anti-tracking or even accessibility).

Note: The original name for this group was the Ad Blocker Community Group.

Group's public email, repo and wiki activity over time

Note: Community Groups are proposed and run by the community. Although W3C hosts these conversations, the groups do not necessarily represent the views of the W3C Membership or staff.

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New Name: Content Blocking Community Group

Based on discussions with existing members, we decided that just leaving the scope to ad blocking might not be enough – and we might have opinions on content blocking in general – this includes web technologies being used for ad blocking, anti-tracking, accessibility and more.

One thing to note: Due to the previous name, the shortname for this group was ‘abcg’. Changing the shortname would require way more administrative and engineering hassle, so the shortname for this group would remain as ‘abcg’ and as such, the URL for this community group would remain The mailing list name would remain the same too. But for all other purposes, we can now be referred to as the Content Blocking Community Group!

We would be shortly updating our charter to reflect this. Thanks everyone for the feedback in this process.

Call for Participation in Ad Blocker Community Group

The Ad Blocker Community Group has been launched:

The mission of this group is to improve web standards by conveying to Working Groups use cases from an ad blocker perspective (particularly ad blocker browser extensions).

In order to join the group, you will need a W3C account. Please note, however, that W3C Membership is not required to join a Community Group.

This is a community initiative. This group was originally proposed on 2019-09-25 by Shwetank Dixit. The following people supported its creation: Shwetank Dixit, Peter Lowe, Thomas Greiner, Ryan Brown, Jutta Horstmann. W3C’s hosting of this group does not imply endorsement of the activities.

The group must now choose a chair. Read more about how to get started in a new group and good practice for running a group.

We invite you to share news of this new group in social media and other channels.

If you believe that there is an issue with this group that requires the attention of the W3C staff, please email us at

Thank you,
W3C Community Development Team