How we check

Our source list

This list decides how much weight a page carries. It is topic-blind: it never depends on what a site says or which side it is on. Sites not on the list can be weighted as established outlets or other, never as original records. Wikipedia counts as other; we search for its original sources separately.

Open a group to see every site in it.

Original record (190)

Site or pattern	Why
`*.gov`	Official government publisher: its own records and statistics.
`*.mil`	Official military publisher: its own records.
`*.gov.uk`	Official government publisher: its own records and statistics.
`*.gov.au`	Official government publisher: its own records and statistics.
`*.gc.ca`	Official government publisher: its own records and statistics.
`*.canada.ca`	Official government publisher: its own records and statistics.
`*.govt.nz`	Official government publisher: its own records and statistics.
`*.gov.ie`	Official government publisher: its own records and statistics.
`*.gouv.fr`	Official government publisher: its own records and statistics.
`*.bund.de`	Official government publisher: its own records and statistics.
`*.gob.es`	Official government publisher: its own records and statistics.
`*.gob.mx`	Official government publisher: its own records and statistics.
`*.go.jp`	Official government publisher: its own records and statistics.
`*.go.kr`	Official government publisher: its own records and statistics.
`*.gov.in`	Official government publisher: its own records and statistics.
`*.nic.in`	Official government publisher: its own records and statistics.
`*.gov.sg`	Official government publisher: its own records and statistics.
`*.gov.za`	Official government publisher: its own records and statistics.
`*.gov.br`	Official government publisher: its own records and statistics.
`*.gov.it`	Official government publisher: its own records and statistics.
`*.gov.pl`	Official government publisher: its own records and statistics.
`*.gov.hu`	Official government publisher: its own records and statistics.
`*.admin.ch`	Official government publisher: its own records and statistics.
`*.government.nl`	Official government publisher: its own records and statistics.
`*.overheid.nl`	Official government publisher: its own records and statistics.
`*.regeringen.se`	Official government publisher: its own records and statistics.
`*.gov.il`	Official government publisher: its own records and statistics.
`*.gov.ua`	Official government publisher: its own records and statistics.
`*.gov.ph`	Official government publisher: its own records and statistics.
`*.gov.cn`	Official government publisher: its own records and statistics.
`*.gov.tw`	Official government publisher: its own records and statistics.
`*.gov.hk`	Official government publisher: its own records and statistics.
`*.gv.at`	Official government publisher: its own records and statistics.
`*.belgium.be`	Official government publisher: its own records and statistics.
`*.gov.ng`	Official government publisher: its own records and statistics.
`*.go.ke`	Official government publisher: its own records and statistics.
`*.gov.ar`	Official government publisher: its own records and statistics.
`*.gob.cl`	Official government publisher: its own records and statistics.
`bls.gov`	National statistics office: official statistics.
`census.gov`	National statistics office: official statistics.
`bea.gov`	National statistics office: official statistics.
`eia.gov`	National statistics office: official statistics.
`cdc.gov`	Official government publisher: its own records and statistics.
`nih.gov`	Official government publisher: its own records and statistics.
`fda.gov`	Official government publisher: its own records and statistics.
`nasa.gov`	Official government publisher: its own records and statistics.
`noaa.gov`	Official government publisher: its own records and statistics.
`federalreserve.gov`	Central bank: publishes official monetary and financial statistics.
`whitehouse.gov`	Official government publisher: its own records and statistics.
`state.gov`	Official government publisher: its own records and statistics.
`justice.gov`	Official government publisher: its own records and statistics.
`fbi.gov`	Official government publisher: its own records and statistics.
`ftc.gov`	Official government publisher: its own records and statistics.
`fcc.gov`	Official government publisher: its own records and statistics.
`epa.gov`	Official government publisher: its own records and statistics.
`energy.gov`	Official government publisher: its own records and statistics.
`usda.gov`	Official government publisher: its own records and statistics.
`supremecourt.gov`	Court or court record repository: the text of rulings and filings.
`uscourts.gov`	Court or court record repository: the text of rulings and filings.
`gao.gov`	Official government publisher: its own records and statistics.
`cbo.gov`	Official government publisher: its own records and statistics.
`house.gov`	Official legislation text.
`senate.gov`	Official legislation text.
`archives.gov`	Official government publisher: its own records and statistics.
`nist.gov`	Standards body: publishes the standard itself.
`loc.gov`	Official government publisher: its own records and statistics.
`copyright.gov`	Official government publisher: its own records and statistics.
`uspto.gov`	Official government publisher: its own records and statistics.
`treasury.gov`	Official government publisher: its own records and statistics.
`irs.gov`	Official government publisher: its own records and statistics.
`nhs.uk`	Official government publisher: its own records and statistics.
`parliament.uk`	Official legislation text.
`ofcom.org.uk`	Official government publisher: its own records and statistics.
`ico.org.uk`	Official government publisher: its own records and statistics.
`europarl.europa.eu`	Official legislation text.
`consilium.europa.eu`	Official government publisher: its own records and statistics.
`europa.eu`	Official government publisher: its own records and statistics.
`eur-lex.europa.eu`	Official legislation text.
`ecb.europa.eu`	Central bank: publishes official monetary and financial statistics.
`ec.europa.eu/eurostat`	National statistics office: official statistics.
`curia.europa.eu`	Court or court record repository: the text of rulings and filings.
`*.int`	Intergovernmental organisation: publishes its own official data and reports.
`un.org`	Intergovernmental organisation: publishes its own official data and reports.
`who.int`	Intergovernmental organisation: publishes its own official data and reports.
`unicef.org`	Intergovernmental organisation: publishes its own official data and reports.
`unesco.org`	Intergovernmental organisation: publishes its own official data and reports.
`unhcr.org`	Intergovernmental organisation: publishes its own official data and reports.
`undp.org`	Intergovernmental organisation: publishes its own official data and reports.
`unep.org`	Intergovernmental organisation: publishes its own official data and reports.
`fao.org`	Intergovernmental organisation: publishes its own official data and reports.
`ilo.org`	Intergovernmental organisation: publishes its own official data and reports.
`ipcc.ch`	Intergovernmental organisation: publishes its own official data and reports.
`wfp.org`	Intergovernmental organisation: publishes its own official data and reports.
`iaea.org`	Intergovernmental organisation: publishes its own official data and reports.
`wipo.int`	Intergovernmental organisation: publishes its own official data and reports.
`imf.org`	Intergovernmental organisation: publishes its own official data and reports.
`worldbank.org`	Intergovernmental organisation: publishes its own official data and reports.
`oecd.org`	Intergovernmental organisation: publishes its own official data and reports.
`wto.org`	Intergovernmental organisation: publishes its own official data and reports.
`bis.org`	Central bank: publishes official monetary and financial statistics.
`iea.org`	Intergovernmental organisation: publishes its own official data and reports.
`nato.int`	Intergovernmental organisation: publishes its own official data and reports.
`bankofengland.co.uk`	Central bank: publishes official monetary and financial statistics.
`bankofcanada.ca`	Central bank: publishes official monetary and financial statistics.
`boj.or.jp`	Central bank: publishes official monetary and financial statistics.
`bundesbank.de`	Central bank: publishes official monetary and financial statistics.
`banque-france.fr`	Central bank: publishes official monetary and financial statistics.
`snb.ch`	Central bank: publishes official monetary and financial statistics.
`rbnz.govt.nz`	Central bank: publishes official monetary and financial statistics.
`rbi.org.in`	Central bank: publishes official monetary and financial statistics.
`mnb.hu`	Central bank: publishes official monetary and financial statistics.
`ons.gov.uk`	National statistics office: official statistics.
`statcan.gc.ca`	National statistics office: official statistics.
`abs.gov.au`	National statistics office: official statistics.
`destatis.de`	National statistics office: official statistics.
`insee.fr`	National statistics office: official statistics.
`istat.it`	National statistics office: official statistics.
`ine.es`	National statistics office: official statistics.
`cbs.nl`	National statistics office: official statistics.
`scb.se`	National statistics office: official statistics.
`ssb.no`	National statistics office: official statistics.
`dst.dk`	National statistics office: official statistics.
`stat.fi`	National statistics office: official statistics.
`ksh.hu`	National statistics office: official statistics.
`stats.govt.nz`	National statistics office: official statistics.
`cso.ie`	National statistics office: official statistics.
`stat.go.jp`	National statistics office: official statistics.
`ibge.gov.br`	National statistics office: official statistics.
`inegi.org.mx`	National statistics office: official statistics.
`courtlistener.com`	Court or court record repository: the text of rulings and filings.
`supremecourt.uk`	Court or court record repository: the text of rulings and filings.
`bailii.org`	Court or court record repository: the text of rulings and filings.
`judiciary.uk`	Court or court record repository: the text of rulings and filings.
`echr.coe.int`	Court or court record repository: the text of rulings and filings.
`icj-cij.org`	Court or court record repository: the text of rulings and filings.
`icc-cpi.int`	Court or court record repository: the text of rulings and filings.
`scc-csc.ca`	Court or court record repository: the text of rulings and filings.
`hcourt.gov.au`	Court or court record repository: the text of rulings and filings.
`legislation.gov.uk`	Official legislation text.
`congress.gov`	Official legislation text.
`govinfo.gov`	Official legislation text.
`federalregister.gov`	Official legislation text.
`ecfr.gov`	Official legislation text.
`law.cornell.edu`	Official legislation text.
`sec.gov`	Regulatory filing repository: the filings themselves.
`find-and-update.company-information.service.gov.uk`	Regulatory filing repository: the filings themselves.
`sedarplus.ca`	Regulatory filing repository: the filings themselves.
`esma.europa.eu`	Regulatory filing repository: the filings themselves.
`iso.org`	Standards body: publishes the standard itself.
`ietf.org`	Standards body: publishes the standard itself.
`rfc-editor.org`	Standards body: publishes the standard itself.
`w3.org`	Standards body: publishes the standard itself.
`standards.ieee.org`	Standards body: publishes the standard itself.
`c2pa.org`	Standards body: publishes the standard itself.
`itu.int`	Standards body: publishes the standard itself.
`unicode.org`	Standards body: publishes the standard itself.
`ecma-international.org`	Standards body: publishes the standard itself.
`cenelec.eu`	Standards body: publishes the standard itself.
`etsi.org`	Standards body: publishes the standard itself.
`nature.com`	Peer-reviewed journal publisher: the papers themselves.
`link.springer.com`	Peer-reviewed journal publisher: the papers themselves.
`biomedcentral.com`	Peer-reviewed journal publisher: the papers themselves.
`science.org`	Peer-reviewed journal publisher: the papers themselves.
`cell.com`	Peer-reviewed journal publisher: the papers themselves.
`thelancet.com`	Peer-reviewed journal publisher: the papers themselves.
`sciencedirect.com`	Peer-reviewed journal publisher: the papers themselves.
`nejm.org`	Peer-reviewed journal publisher: the papers themselves.
`jamanetwork.com`	Peer-reviewed journal publisher: the papers themselves.
`bmj.com`	Peer-reviewed journal publisher: the papers themselves.
`pnas.org`	Peer-reviewed journal publisher: the papers themselves.
`journals.plos.org`	Peer-reviewed journal publisher: the papers themselves.
`onlinelibrary.wiley.com`	Peer-reviewed journal publisher: the papers themselves.
`tandfonline.com`	Peer-reviewed journal publisher: the papers themselves.
`academic.oup.com`	Peer-reviewed journal publisher: the papers themselves.
`cambridge.org`	Peer-reviewed journal publisher: the papers themselves.
`journals.sagepub.com`	Peer-reviewed journal publisher: the papers themselves.
`ojs.aaai.org`	Peer-reviewed journal publisher: the papers themselves.
`ieeexplore.ieee.org`	Peer-reviewed journal publisher: the papers themselves.
`dl.acm.org`	Peer-reviewed journal publisher: the papers themselves.
`elifesciences.org`	Peer-reviewed journal publisher: the papers themselves.
`frontiersin.org`	Peer-reviewed journal publisher: the papers themselves.
`aps.org`	Peer-reviewed journal publisher: the papers themselves.
`journals.aps.org`	Peer-reviewed journal publisher: the papers themselves.
`pubs.acs.org`	Peer-reviewed journal publisher: the papers themselves.
`iopscience.iop.org`	Peer-reviewed journal publisher: the papers themselves.
`annualreviews.org`	Peer-reviewed journal publisher: the papers themselves.
`jstor.org`	Peer-reviewed journal publisher: the papers themselves.
`pubmed.ncbi.nlm.nih.gov`	Research index run by a public body, links to the paper record.
`ncbi.nlm.nih.gov`	Research index run by a public body, links to the paper record.
`europepmc.org`	Research index run by a public body, links to the paper record.

Established outlet (243)

Site or pattern	Why
`reuters.com`	News wire service with named editors and a public corrections policy.
`apnews.com`	News wire service with named editors and a public corrections policy.
`afp.com`	News wire service with named editors and a public corrections policy.
`reutersagency.com`	Reuters' own agency site: the same wire service, so its own announcements are Reuters' own record.
`thomsonreuters.com`	Corporate site of the company that owns Reuters: its own record of what it announced.
`ap.org`	The Associated Press's own corporate and press site: its own record of what it announced.
`dpa.com`	News wire service with named editors and a public corrections policy.
`upi.com`	News wire service with named editors and a public corrections policy.
`efe.com`	News wire service with named editors and a public corrections policy.
`ansa.it`	News wire service with named editors and a public corrections policy.
`kyodonews.net`	News wire service with named editors and a public corrections policy.
`pa.media`	News wire service with named editors and a public corrections policy.
`aap.com.au`	News wire service with named editors and a public corrections policy.
`thecanadianpress.com`	News wire service with named editors and a public corrections policy.
`bbc.co.uk`	Public broadcaster newsroom with named editors and a public corrections policy.
`bbc.com`	Public broadcaster newsroom with named editors and a public corrections policy.
`npr.org`	Public broadcaster newsroom with named editors and a public corrections policy.
`pbs.org`	Public broadcaster newsroom with named editors and a public corrections policy.
`cbc.ca`	Public broadcaster newsroom with named editors and a public corrections policy.
`abc.net.au`	Public broadcaster newsroom with named editors and a public corrections policy.
`rnz.co.nz`	Public broadcaster newsroom with named editors and a public corrections policy.
`rte.ie`	Public broadcaster newsroom with named editors and a public corrections policy.
`dw.com`	Public broadcaster newsroom with named editors and a public corrections policy.
`france24.com`	Public broadcaster newsroom with named editors and a public corrections policy.
`rfi.fr`	Public broadcaster newsroom with named editors and a public corrections policy.
`nhk.or.jp`	Public broadcaster newsroom with named editors and a public corrections policy.
`swissinfo.ch`	Public broadcaster newsroom with named editors and a public corrections policy.
`svt.se`	Public broadcaster newsroom with named editors and a public corrections policy.
`nrk.no`	Public broadcaster newsroom with named editors and a public corrections policy.
`yle.fi`	Public broadcaster newsroom with named editors and a public corrections policy.
`dr.dk`	Public broadcaster newsroom with named editors and a public corrections policy.
`tagesschau.de`	Public broadcaster newsroom with named editors and a public corrections policy.
`zdf.de`	Public broadcaster newsroom with named editors and a public corrections policy.
`euronews.com`	News organisation with named editors and a public corrections policy.
`voanews.com`	Public broadcaster newsroom with named editors and a public corrections policy.
`nytimes.com`	News organisation with named editors and a public corrections policy.
`washingtonpost.com`	News organisation with named editors and a public corrections policy.
`wsj.com`	News organisation with named editors and a public corrections policy.
`usatoday.com`	News organisation with named editors and a public corrections policy.
`latimes.com`	News organisation with named editors and a public corrections policy.
`chicagotribune.com`	News organisation with named editors and a public corrections policy.
`bostonglobe.com`	News organisation with named editors and a public corrections policy.
`sfchronicle.com`	News organisation with named editors and a public corrections policy.
`houstonchronicle.com`	News organisation with named editors and a public corrections policy.
`seattletimes.com`	News organisation with named editors and a public corrections policy.
`startribune.com`	News organisation with named editors and a public corrections policy.
`miamiherald.com`	News organisation with named editors and a public corrections policy.
`nypost.com`	News organisation with named editors and a public corrections policy.
`washingtontimes.com`	News organisation with named editors and a public corrections policy.
`washingtonexaminer.com`	News organisation with named editors and a public corrections policy.
`politico.com`	News organisation with named editors and a public corrections policy.
`politico.eu`	News organisation with named editors and a public corrections policy.
`axios.com`	News organisation with named editors and a public corrections policy.
`thehill.com`	News organisation with named editors and a public corrections policy.
`time.com`	News organisation with named editors and a public corrections policy.
`newsweek.com`	News organisation with named editors and a public corrections policy.
`theatlantic.com`	News organisation with named editors and a public corrections policy.
`newyorker.com`	News organisation with named editors and a public corrections policy.
`economist.com`	News organisation with named editors and a public corrections policy.
`cnn.com`	News organisation with named editors and a public corrections policy.
`nbcnews.com`	News organisation with named editors and a public corrections policy.
`msnbc.com`	News organisation with named editors and a public corrections policy.
`cnbc.com`	Business and financial newsroom with named editors and a public corrections policy.
`cbsnews.com`	News organisation with named editors and a public corrections policy.
`abcnews.go.com`	News organisation with named editors and a public corrections policy.
`foxnews.com`	News organisation with named editors and a public corrections policy.
`foxbusiness.com`	Business and financial newsroom with named editors and a public corrections policy.
`news.sky.com`	News organisation with named editors and a public corrections policy.
`itv.com`	News organisation with named editors and a public corrections policy.
`channel4.com`	News organisation with named editors and a public corrections policy.
`theguardian.com`	News organisation with named editors and a public corrections policy.
`telegraph.co.uk`	News organisation with named editors and a public corrections policy.
`thetimes.co.uk`	News organisation with named editors and a public corrections policy.
`thetimes.com`	News organisation with named editors and a public corrections policy.
`independent.co.uk`	News organisation with named editors and a public corrections policy.
`ft.com`	Business and financial newsroom with named editors and a public corrections policy.
`irishtimes.com`	News organisation with named editors and a public corrections policy.
`scotsman.com`	News organisation with named editors and a public corrections policy.
`theglobeandmail.com`	News organisation with named editors and a public corrections policy.
`thestar.com`	News organisation with named editors and a public corrections policy.
`nationalpost.com`	News organisation with named editors and a public corrections policy.
`smh.com.au`	News organisation with named editors and a public corrections policy.
`theage.com.au`	News organisation with named editors and a public corrections policy.
`theaustralian.com.au`	News organisation with named editors and a public corrections policy.
`nzherald.co.nz`	News organisation with named editors and a public corrections policy.
`stuff.co.nz`	News organisation with named editors and a public corrections policy.
`aljazeera.com`	News organisation with named editors and a public corrections policy.
`lemonde.fr`	News organisation with named editors and a public corrections policy.
`lefigaro.fr`	News organisation with named editors and a public corrections policy.
`liberation.fr`	News organisation with named editors and a public corrections policy.
`spiegel.de`	News organisation with named editors and a public corrections policy.
`faz.net`	News organisation with named editors and a public corrections policy.
`zeit.de`	News organisation with named editors and a public corrections policy.
`sueddeutsche.de`	News organisation with named editors and a public corrections policy.
`welt.de`	News organisation with named editors and a public corrections policy.
`elpais.com`	News organisation with named editors and a public corrections policy.
`elmundo.es`	News organisation with named editors and a public corrections policy.
`corriere.it`	News organisation with named editors and a public corrections policy.
`repubblica.it`	News organisation with named editors and a public corrections policy.
`nrc.nl`	News organisation with named editors and a public corrections policy.
`volkskrant.nl`	News organisation with named editors and a public corrections policy.
`nzz.ch`	News organisation with named editors and a public corrections policy.
`dn.se`	News organisation with named editors and a public corrections policy.
`aftenposten.no`	News organisation with named editors and a public corrections policy.
`japantimes.co.jp`	News organisation with named editors and a public corrections policy.
`asia.nikkei.com`	Business and financial newsroom with named editors and a public corrections policy.
`scmp.com`	News organisation with named editors and a public corrections policy.
`straitstimes.com`	News organisation with named editors and a public corrections policy.
`thehindu.com`	News organisation with named editors and a public corrections policy.
`hindustantimes.com`	News organisation with named editors and a public corrections policy.
`indianexpress.com`	News organisation with named editors and a public corrections policy.
`timesofindia.indiatimes.com`	News organisation with named editors and a public corrections policy.
`koreaherald.com`	News organisation with named editors and a public corrections policy.
`haaretz.com`	News organisation with named editors and a public corrections policy.
`timesofisrael.com`	News organisation with named editors and a public corrections policy.
`kyivindependent.com`	News organisation with named editors and a public corrections policy.
`themoscowtimes.com`	News organisation with named editors and a public corrections policy.
`mg.co.za`	News organisation with named editors and a public corrections policy.
`news24.com`	News organisation with named editors and a public corrections policy.
`folha.uol.com.br`	News organisation with named editors and a public corrections policy.
`bloomberg.com`	Business and financial newsroom with named editors and a public corrections policy.
`marketwatch.com`	Business and financial newsroom with named editors and a public corrections policy.
`barrons.com`	Business and financial newsroom with named editors and a public corrections policy.
`fortune.com`	Business and financial newsroom with named editors and a public corrections policy.
`forbes.com`	Business and financial newsroom with named editors and a public corrections policy.
`businessinsider.com`	Business and financial newsroom with named editors and a public corrections policy.
`fastcompany.com`	Business and financial newsroom with named editors and a public corrections policy.
`hbr.org`	Business and financial newsroom with named editors and a public corrections policy.
`investopedia.com`	Established reference work with editorial review.
`morningstar.com`	Business and financial newsroom with named editors and a public corrections policy.
`kiplinger.com`	Business and financial newsroom with named editors and a public corrections policy.
`theverge.com`	Technology trade publication with named editors and a corrections policy.
`vox.com`	News organisation with named editors and a public corrections policy.
`wired.com`	Technology trade publication with named editors and a corrections policy.
`arstechnica.com`	Technology trade publication with named editors and a corrections policy.
`techcrunch.com`	Technology trade publication with named editors and a corrections policy.
`engadget.com`	Technology trade publication with named editors and a corrections policy.
`cnet.com`	Technology trade publication with named editors and a corrections policy.
`zdnet.com`	Technology trade publication with named editors and a corrections policy.
`pcmag.com`	Technology trade publication with named editors and a corrections policy.
`mashable.com`	Technology trade publication with named editors and a corrections policy.
`macrumors.com`	Technology trade publication with named editors and a corrections policy.
`9to5mac.com`	Technology trade publication with named editors and a corrections policy.
`9to5google.com`	Technology trade publication with named editors and a corrections policy.
`appleinsider.com`	Technology trade publication with named editors and a corrections policy.
`tomshardware.com`	Technology trade publication with named editors and a corrections policy.
`techradar.com`	Technology trade publication with named editors and a corrections policy.
`theregister.com`	Technology trade publication with named editors and a corrections policy.
`venturebeat.com`	Technology trade publication with named editors and a corrections policy.
`technologyreview.com`	Technology trade publication with named editors and a corrections policy.
`spectrum.ieee.org`	Technology trade publication with named editors and a corrections policy.
`404media.co`	Technology trade publication with named editors and a corrections policy.
`theinformation.com`	Technology trade publication with named editors and a corrections policy.
`semafor.com`	News organisation with named editors and a public corrections policy.
`restofworld.org`	Technology trade publication with named editors and a corrections policy.
`dpreview.com`	Trade publication for its industry with named editors and a corrections policy.
`digitalcameraworld.com`	Trade publication for its industry with named editors and a corrections policy.
`petapixel.com`	Trade publication for its industry with named editors and a corrections policy.
`photographyblog.com`	Trade publication for its industry with named editors and a corrections policy.
`amateurphotographer.com`	Trade publication for its industry with named editors and a corrections policy.
`variety.com`	Trade publication for its industry with named editors and a corrections policy.
`hollywoodreporter.com`	Trade publication for its industry with named editors and a corrections policy.
`deadline.com`	Trade publication for its industry with named editors and a corrections policy.
`billboard.com`	Trade publication for its industry with named editors and a corrections policy.
`rollingstone.com`	Trade publication for its industry with named editors and a corrections policy.
`adage.com`	Trade publication for its industry with named editors and a corrections policy.
`adweek.com`	Trade publication for its industry with named editors and a corrections policy.
`niemanlab.org`	Trade publication for its industry with named editors and a corrections policy.
`poynter.org`	Trade publication for its industry with named editors and a corrections policy.
`cjr.org`	Trade publication for its industry with named editors and a corrections policy.
`pressgazette.co.uk`	Trade publication for its industry with named editors and a corrections policy.
`podnews.net`	Trade publication for its industry with named editors and a corrections policy.
`insideradio.com`	Trade publication for its industry with named editors and a corrections policy.
`statnews.com`	Science magazine with named editors and a corrections policy.
`medpagetoday.com`	Trade publication for its industry with named editors and a corrections policy.
`fiercepharma.com`	Trade publication for its industry with named editors and a corrections policy.
`scientificamerican.com`	Science magazine with named editors and a corrections policy.
`newscientist.com`	Science magazine with named editors and a corrections policy.
`sciencenews.org`	Science magazine with named editors and a corrections policy.
`nationalgeographic.com`	Science magazine with named editors and a corrections policy.
`smithsonianmag.com`	Science magazine with named editors and a corrections policy.
`quantamagazine.org`	Science magazine with named editors and a corrections policy.
`space.com`	Science magazine with named editors and a corrections policy.
`livescience.com`	Science magazine with named editors and a corrections policy.
`carbonbrief.org`	Science magazine with named editors and a corrections policy.
`espn.com`	News organisation with named editors and a public corrections policy.
`theathletic.com`	News organisation with named editors and a public corrections policy.
`skysports.com`	News organisation with named editors and a public corrections policy.
`sportingnews.com`	News organisation with named editors and a public corrections policy.
`britannica.com`	Established reference work with editorial review.
`merriam-webster.com`	Established reference work with editorial review.
`oed.com`	Established reference work with editorial review.
`oxfordreference.com`	Established reference work with editorial review.
`dictionary.cambridge.org`	Established reference work with editorial review.
`history.com`	Established reference work with editorial review.
`*.edu`	University or academic institution.
`*.ac.uk`	University or academic institution.
`*.edu.au`	University or academic institution.
`*.ac.jp`	University or academic institution.
`*.ac.nz`	University or academic institution.
`*.edu.sg`	University or academic institution.
`*.ac.il`	University or academic institution.
`*.ac.in`	University or academic institution.
`*.ac.za`	University or academic institution.
`utoronto.ca`	University or academic institution.
`mcgill.ca`	University or academic institution.
`ubc.ca`	University or academic institution.
`ethz.ch`	University or academic institution.
`epfl.ch`	University or academic institution.
`mpg.de`	University or academic institution.
`cnrs.fr`	University or academic institution.
`kuleuven.be`	University or academic institution.
`uva.nl`	University or academic institution.
`ki.se`	University or academic institution.
`arxiv.org`	Preprint server: research shared before peer review. Counts as the original record only for what that paper itself found; for anything else it is not a primary record.
`biorxiv.org`	Preprint server: research shared before peer review. Counts as the original record only for what that paper itself found; for anything else it is not a primary record.
`medrxiv.org`	Preprint server: research shared before peer review. Counts as the original record only for what that paper itself found; for anything else it is not a primary record.
`ssrn.com`	Preprint server: research shared before peer review. Counts as the original record only for what that paper itself found; for anything else it is not a primary record.
`doi.org`	Research index run by a public body, links to the paper record.
`snopes.com`	Fact-checking organisation that publishes its sources and corrections.
`politifact.com`	Fact-checking organisation that publishes its sources and corrections.
`factcheck.org`	Fact-checking organisation that publishes its sources and corrections.
`fullfact.org`	Fact-checking organisation that publishes its sources and corrections.
`leadstories.com`	Fact-checking organisation that publishes its sources and corrections.
`checkyourfact.com`	Fact-checking organisation that publishes its sources and corrections.
`factcheck.afp.com`	Fact-checking organisation that publishes its sources and corrections.
`pewresearch.org`	Research or data organisation that publishes its methods and sources.
`gallup.com`	Research or data organisation that publishes its methods and sources.
`ourworldindata.org`	Research or data organisation that publishes its methods and sources.
`kff.org`	Research or data organisation that publishes its methods and sources.
`brookings.edu`	Research or data organisation that publishes its methods and sources.
`rand.org`	Research or data organisation that publishes its methods and sources.
`nber.org`	Research or data organisation that publishes its methods and sources.
`ipsos.com`	Research or data organisation that publishes its methods and sources.
`yougov.com`	Research or data organisation that publishes its methods and sources.
`statista.com`	Research or data organisation that publishes its methods and sources.
`icij.org`	News organisation with named editors and a public corrections policy.
`forbiddenstories.org`	News organisation with named editors and a public corrections policy.
`bellingcat.com`	News organisation with named editors and a public corrections policy.
`indicator.media`	News organisation with named editors and a public corrections policy. Its own audits are the original record that others cite (REVIEW-CASTLE-2, fact 14).
`propublica.org`	News organisation with named editors and a public corrections policy.
`theconversation.com`	News organisation with named editors and a public corrections policy.
`csmonitor.com`	News organisation with named editors and a public corrections policy.

Other (89)

Site or pattern	Why
`wikipedia.org`	Wikipedia and other open encyclopedias anyone can edit: counted as other; we search for its original sources separately.
`wikimedia.org`	Wikipedia and other open encyclopedias anyone can edit: counted as other; we search for its original sources separately.
`wikidata.org`	Wikipedia and other open encyclopedias anyone can edit: counted as other; we search for its original sources separately.
`fandom.com`	Wikipedia and other open encyclopedias anyone can edit: counted as other; we search for its original sources separately.
`medium.com`	Open publishing platform: posts are not edited by a newsroom.
`substack.com`	Open publishing platform: posts are not edited by a newsroom.
`wordpress.com`	Open publishing platform: posts are not edited by a newsroom.
`blogspot.com`	Open publishing platform: posts are not edited by a newsroom.
`tumblr.com`	Open publishing platform: posts are not edited by a newsroom.
`ghost.io`	Open publishing platform: posts are not edited by a newsroom.
`beehiiv.com`	Open publishing platform: posts are not edited by a newsroom.
`hubpages.com`	Open publishing platform: posts are not edited by a newsroom.
`vocal.media`	Open publishing platform: posts are not edited by a newsroom.
`forbes.com/sites`	Open publishing platform: posts are not edited by a newsroom.
`reddit.com`	Forum or question site: posts by users, not edited.
`quora.com`	Forum or question site: posts by users, not edited.
`stackexchange.com`	Forum or question site: posts by users, not edited.
`stackoverflow.com`	Forum or question site: posts by users, not edited.
`news.ycombinator.com`	Forum or question site: posts by users, not edited.
`discord.com`	Forum or question site: posts by users, not edited.
`4chan.org`	Forum or question site: posts by users, not edited.
`dpreview.com/forums`	Forum or question site: posts by users, not edited.
`x.com`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`twitter.com`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`facebook.com`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`instagram.com`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`threads.net`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`tiktok.com`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`linkedin.com`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`bsky.app`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`truthsocial.com`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`mastodon.social`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`t.me`	Social platform: posts by users. Counts as the original record only for "this person or body posted this", and only on the account of that person or body itself.
`youtube.com`	Video and podcast platform: uploads by users. Counts as the original record only for "this person said this", and only on the channel of that person.
`youtu.be`	Video and podcast platform: uploads by users. Counts as the original record only for "this person said this", and only on the channel of that person.
`vimeo.com`	Video and podcast platform: uploads by users. Counts as the original record only for "this person said this", and only on the channel of that person.
`rumble.com`	Video and podcast platform: uploads by users. Counts as the original record only for "this person said this", and only on the channel of that person.
`podcasts.apple.com`	Video and podcast platform: uploads by users. Counts as the original record only for "this person said this", and only on the channel of that person.
`open.spotify.com`	Video and podcast platform: uploads by users. Counts as the original record only for "this person said this", and only on the channel of that person.
`prnewswire.com`	Press release distributor: companies publish their own releases. Counts as the original record only for "the company says or announced this", and only when the release is issued by that company itself.
`businesswire.com`	Press release distributor: companies publish their own releases. Counts as the original record only for "the company says or announced this", and only when the release is issued by that company itself.
`globenewswire.com`	Press release distributor: companies publish their own releases. Counts as the original record only for "the company says or announced this", and only when the release is issued by that company itself.
`accesswire.com`	Press release distributor: companies publish their own releases. Counts as the original record only for "the company says or announced this", and only when the release is issued by that company itself.
`einpresswire.com`	Press release distributor: companies publish their own releases. Counts as the original record only for "the company says or announced this", and only when the release is issued by that company itself.
`prweb.com`	Press release distributor: companies publish their own releases. Counts as the original record only for "the company says or announced this", and only when the release is issued by that company itself.
`apple.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`security.apple.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`nikon.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`nikonusa.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`canon.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`sony.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`adobe.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`blog.adobe.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`microsoft.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`blog.google`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`about.google`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`about.fb.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`openai.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`anthropic.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`amazon.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`aboutamazon.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`tesla.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`samsung.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`nvidia.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`intel.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`contentauthenticity.org`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`leica-camera.com`	Company official site: counts as the original record only for what the company itself announced, launched, priced, decided or said, never for whether it works or for other parties.
`news.yahoo.com`	Aggregator that republishes other outlets: follow it to the original.
`yahoo.com`	Aggregator that republishes other outlets: follow it to the original.
`msn.com`	Aggregator that republishes other outlets: follow it to the original.
`news.google.com`	Aggregator that republishes other outlets: follow it to the original.
`flipboard.com`	Aggregator that republishes other outlets: follow it to the original.
`ground.news`	Aggregator that republishes other outlets: follow it to the original.
`allsides.com`	Aggregator that republishes other outlets: follow it to the original.
`archive.org`	Aggregator that republishes other outlets: follow it to the original.
`archive.ph`	Aggregator that republishes other outlets: follow it to the original.
`scribd.com`	Open publishing platform: posts are not edited by a newsroom.
`slideshare.net`	Open publishing platform: posts are not edited by a newsroom.
`issuu.com`	Open publishing platform: posts are not edited by a newsroom.
`academia.edu`	Open publishing platform: posts are not edited by a newsroom.
`researchgate.net`	Open publishing platform: posts are not edited by a newsroom.
`wikihow.com`	Wikipedia and other open encyclopedias anyone can edit: counted as other; we search for its original sources separately.
`ehow.com`	Content farm or user-submitted news with no editorial review.
`answers.com`	Forum or question site: posts by users, not edited.
`imdb.com`	Wikipedia and other open encyclopedias anyone can edit: counted as other; we search for its original sources separately.
`goodreads.com`	Forum or question site: posts by users, not edited.
`tripadvisor.com`	Forum or question site: posts by users, not edited.
`yelp.com`	Forum or question site: posts by users, not edited.
`github.com`	Open publishing platform: posts are not edited by a newsroom.

Not counted (32)

Site or pattern	Why
`theonion.com`	Satire site: its stories are made up on purpose.
`babylonbee.com`	Satire site: its stories are made up on purpose.
`newsthump.com`	Satire site: its stories are made up on purpose.
`thedailymash.co.uk`	Satire site: its stories are made up on purpose.
`clickhole.com`	Satire site: its stories are made up on purpose.
`thebeaverton.com`	Satire site: its stories are made up on purpose.
`der-postillon.com`	Satire site: its stories are made up on purpose.
`legorafi.fr`	Satire site: its stories are made up on purpose.
`waterfordwhispersnews.com`	Satire site: its stories are made up on purpose.
`duffelblog.com`	Satire site: its stories are made up on purpose.
`worldnewsdailyreport.com`	Known to publish made-up stories presented as news.
`nationalreport.net`	Known to publish made-up stories presented as news.
`empirenews.net`	Known to publish made-up stories presented as news.
`newspunch.com`	Known to publish made-up stories presented as news.
`yournewswire.com`	Known to publish made-up stories presented as news.
`react365.com`	Known to publish made-up stories presented as news.
`huzlers.com`	Known to publish made-up stories presented as news.
`abcnews.com.co`	Impostor site that copies the look of a real news brand.
`cnn-trending.com`	Impostor site that copies the look of a real news brand.
`usatoday.com.co`	Impostor site that copies the look of a real news brand.
`washingtonpost.com.co`	Impostor site that copies the look of a real news brand.
`bbc-news.co`	Impostor site that copies the look of a real news brand.
`beforeitsnews.com`	Content farm or user-submitted news with no editorial review.
`newsbreak.com`	Content farm or user-submitted news with no editorial review.
`ezinearticles.com`	Content farm or user-submitted news with no editorial review.
`google.com`	Search engine or answer page, not a source.
`bing.com`	Search engine or answer page, not a source.
`duckduckgo.com`	Search engine or answer page, not a source.
`exa.ai`	Search engine or answer page, not a source.
`perplexity.ai`	Search engine or answer page, not a source.
`chatgpt.com`	Search engine or answer page, not a source.
`gemini.google.com`	Search engine or answer page, not a source.

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