uB-filter-by-kdroidwin

What the filter blocks

uB-filter-by-kdroidwin is a filter list for uBlacklist and uBlock Origin. The README, written in Japanese, states the main purpose is to exclude fraudulent sites, fake sites, and malicious affiliate sites from search results. In other words, the list is a defensive tool: it hides known bad actors so they do not appear when a user searches, rather than promoting anything. The description repeats this in English, calling it a filter whose main purpose is to exclude fraudulent or fake sites.

The README asks users to report false positives or sites that should be blocked. It points readers to Twitter, a tally form, or the issue trackers, and it notes that even people without a GitHub or Codeberg account can report through those channels. This reporting loop is how the list stays relevant, because scam sites change domains frequently. The project also links a Codeberg repository mirror, so the filter is available from two hosts. The intent is clearly protective, and the list sits in the opposite category from the scam operations it targets. A user who wants cleaner search results, especially in regions where copycat and phishing sites rank highly, is the audience the README addresses. The GPL-3.0 license lets others redistribute and adapt the list while keeping it free.

uBlacklist subscription steps

For uBlacklist users, the README gives a two step subscription method. First install uBlacklist using the documentation link the README provides, then press the subscribe links shown below. The README warns that a uBlock Origin filter cannot be used inside uBlacklist, which is why the project separates the two ecosystems even though both consume block lists. The uBlacklist subscriptions are offered through the iorate ublacklist subscription URLs for Chrome and Chromium derived browsers, and through the ublacklist rulesets subscribe endpoint for Firefox and its forks.

The subscription links point at raw files in the repository. The basic list is uBlacklist.txt, the second list is uBlacklist2.txt, and the exclusion list is uBlacklist-Exclusion.txt. The README provides these for both the Chrome style subscribe link and the Firefox style subscribe link, so the same files serve each browser through its own subscription mechanism. Because uBlacklist works inside search engines to hide results, subscribing to these files means the blocked domains no longer show up on Google and similar sites. The README repeats the Firefox block twice in the excerpt, which suggests the author wanted to be sure Firefox users found the right endpoint. A new user should pick the link that matches their browser and then confirm the subscription appears in the uBlacklist options panel.

Filter variants and the exclusion list

The README describes three kinds of uBlacklist filter. The first is the basic filter, meant for general use. The second subscription is for users who can tolerate some over blocking, because it may also block sites that should not be blocked, and the README labels it experimental and advises using it together with the first filter rather than alone. The third is an exclusion filter that the README marks as required, and its job is to reduce false positives from the first two filters.

This three layer design is a practical response to the trade off in any block list. A strict list catches more scams but also risks hiding legitimate sites, while an exclusion list repairs those mistakes. The README's instruction that the exclusion subscription is required tells the user not to skip it, since without it the experimental second list could hide wanted results. The changelog section links the full commit history and invites users to star the repository for notifications of important changes. Because the list is maintained through commits, the subscription endpoints always pull the newest version when uBlacklist refreshes. A careful user should subscribe to the basic list plus the required exclusion list, and add the experimental second list only if they accept occasional wrong blocks.

Editorial conclusion

The filter is licensed under GPL-3.0 and is mirrored on Codeberg, and it offers separate subscription files named uBlacklist.txt, uBlacklist2.txt, and uBlacklist-Exclusion.txt. The README states a uBlock Origin filter cannot be used inside uBlacklist.