Pi-hole Optimized Blocklists combines deduplicated lists from curated sources for ads, tracking, malware, phishing, suspicious sites, and NSFW domains.
Open source
24 alternativesScam Blocklist
Scam Blocklist provides a HOSTS-format list of domains described as untrustworthy, with nightly updates that remove dead or invalid domains.
About Scam Blocklist
Scam Blocklist is an open-source repository that hosts a list of domains described as untrustworthy, intended to protect users against scam sites. It is published in two formats: a HOSTS-format file and an Adblock Plus (ABP) format file. The list receives nightly updates that remove dead or invalid domains, and it can be added as an extra filter list in ad blockers such as uBlock Origin. The project has also been integrated into other filtering efforts, including AdGuard DNS, HaGeZi's DNS Blocklists, NoTracking Blocklist and OISD Blocklist. Suggestions and corrections are handled through GitHub issues.
Key features
- Hosted list of domains described as untrustworthy
- Available in HOSTS and Adblock Plus (ABP) formats
- Nightly updates remove dead or invalid domains
- Can be added as a custom filter list in uBlock Origin
- MIT licensed and open to integration in other projects
- Domain suggestions and reports handled via GitHub issues
Best for: People who already use an ad blocker or DNS-level filtering service and want to add a scam-site blocklist to it.
Good for
- Nightly updates prune dead or invalid domains from the list
- Offered in two list formats for different blockers
- MIT license allows use and integration in other projects
Watch out for
- Distributed as plain list files rather than a standalone app, so it must be added to an existing blocker or DNS service
- Coverage and behavior in practice depend on the ad blocker or filtering service it is loaded into
Scam Blocklist at a glance
- Category
- Privacy & Security › Ad & Tracker Blockers
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Scam Blocklist FAQ
What list formats does Scam Blocklist provide?
A HOSTS-format file (hosts.txt) and an Adblock Plus (ABP) format file (adguard.txt), both linked from the repository README.
How do I add it to uBlock Origin?
Add the Adblock Plus format URL as a Custom Filter List under the Filter lists tab in uBlock Origin.
How can I contribute a domain or report an issue?
Open an issue on the project's GitHub repository; the README also welcomes integration into other projects via issue or pull request.
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