We are building the reliability infrastructure for the internet. Our tools give people the ability to identify signals they can use to determine the credibility of the information they consume.
WikiSignals is an open-source, reference reliability tool. The goal is helping people determine domain-level source credibility. Our focus is Wikipedians but it’s free for all (see Partners). We gather data from media indexes, ratings agencies, press membership directories, and web-related services. Search our dataset of 200K Science Journals, with impact scores and metadata. Or use the search form above to check any of the 70K news/info domains in our database.
Signal sources for news sites
Ratings
Media indexes
- Oasis (Project Oasis)
- USNPL (US Newspaper Link)
- GoogleNews (Google News)

Wayback Machine
- First capture
- Last capture
- Total captures
Wikimedia
- Wikipedia (en) Citations (count)
- WikiFake (Wikipedia (en): List of fake news websites)
- WikiSatire (Wikipedia (en): List of satirical news websites)
- WikiSpam (MediaWiki: SpamBlacklist)
- WikiRSP (Wikipedia (en): Reliable/Perennial Sources)
Science journals
- Peer-Reviewed (coming)
- Predatory/Hijacked
Press associations
- AAM (Alliance for Audited Media)

- AAN (Association of Alternative Newsmedia)

- CoLab (CoLab News)
- GFMD (Global Forum for Media Development)

- Impress (Impress)

- INN (Institute for Nonprofit News)

- LION (Local Independent Online News Publishers)

- NNA (National Newspaper Association)

- NNPA (National Newspaper Publishers Association)

- trust.txt (JournalList)

- And 46 state press membership orgs