> ## Documentation Index
> Fetch the complete documentation index at: https://mintlify.com/koala73/worldmonitor/llms.txt
> Use this file to discover all available pages before exploring further.

# RSS Feed Sources

> Comprehensive catalog of 150+ RSS feed sources, categories, and allowlist domains

## Overview

World Monitor aggregates **150+ RSS feeds** across geopolitics, defense, energy, tech, and finance. Each variant loads its own curated feed set:

* **Geopolitical variant**: \~25 categories
* **Tech variant**: \~20 categories
* **Finance variant**: \~18 categories
* **Happy variant**: Positive news sources

## RSS Proxy Architecture

All RSS feeds are proxied through `/api/rss-proxy` to prevent CORS issues. The proxy:

* **Domain allowlist** - Only whitelisted domains are permitted (security)
* **Automatic fallback** - Direct fetch → Railway relay on failure
* **Per-feed circuit breakers** - Failing feeds don't affect others
* **5-minute polling** - Each feed refreshed independently
* **10-minute cooldown** - Failed feeds pause before retry

<Info>
  The proxy implements a dual-fetch strategy: attempts direct connection first, then falls back to the Railway relay server if the direct fetch fails.
</Info>

## Allowed Domains

The following domains are permitted through `api/rss-proxy.js` (lines 48-326):

### International News

| Domain                                                | Source            | Language |
| ----------------------------------------------------- | ----------------- | -------- |
| feeds.bbci.co.uk                                      | BBC News          | English  |
| [www.bbc.com](http://www.bbc.com)                     | BBC News          | English  |
| [www.theguardian.com](http://www.theguardian.com)     | The Guardian      | English  |
| feeds.npr.org                                         | NPR               | English  |
| rss.cnn.com                                           | CNN               | English  |
| [www.aljazeera.com](http://www.aljazeera.com)         | Al Jazeera        | English  |
| [www.aljazeera.net](http://www.aljazeera.net)         | Al Jazeera Arabic | Arabic   |
| feeds.reuters.com                                     | Reuters           | English  |
| [www.reutersagency.com](http://www.reutersagency.com) | Reuters Agency    | English  |
| [www.ft.com](http://www.ft.com)                       | Financial Times   | English  |
| news.google.com                                       | Google News       | Multiple |

### Geopolitical & Defense

| Domain                                                  | Source                   | Focus                       |
| ------------------------------------------------------- | ------------------------ | --------------------------- |
| [www.defenseone.com](http://www.defenseone.com)         | Defense One              | U.S. defense policy         |
| breakingdefense.com                                     | Breaking Defense         | Military procurement        |
| [www.defensenews.com](http://www.defensenews.com)       | Defense News             | Global defense              |
| [www.militarytimes.com](http://www.militarytimes.com)   | Military Times           | U.S. military               |
| taskandpurpose.com                                      | Task & Purpose           | Military news               |
| news.usni.org                                           | U.S. Naval Institute     | Naval operations            |
| [www.bellingcat.com](http://www.bellingcat.com)         | Bellingcat               | OSINT investigations        |
| [www.thedrive.com](http://www.thedrive.com)             | The War Zone (The Drive) | Military tech               |
| [www.oryxspioenkop.com](http://www.oryxspioenkop.com)   | Oryx                     | Conflict equipment tracking |
| foreignpolicy.com                                       | Foreign Policy           | International relations     |
| [www.foreignaffairs.com](http://www.foreignaffairs.com) | Foreign Affairs          | Geopolitics                 |
| thediplomat.com                                         | The Diplomat             | Asia-Pacific                |
| [www.politico.com](http://www.politico.com)             | Politico                 | U.S. politics               |
| rss.politico.com                                        | Politico RSS             | U.S. politics               |

### Think Tanks & Research

| Domain                                                    | Organization                                 | Region              |
| --------------------------------------------------------- | -------------------------------------------- | ------------------- |
| [www.cfr.org](http://www.cfr.org)                         | Council on Foreign Relations                 | Global              |
| [www.csis.org](http://www.csis.org)                       | Center for Strategic & International Studies | Global              |
| [www.brookings.edu](http://www.brookings.edu)             | Brookings Institution                        | Global              |
| [www.atlanticcouncil.org](http://www.atlanticcouncil.org) | Atlantic Council                             | Transatlantic       |
| rusi.org                                                  | Royal United Services Institute              | UK                  |
| warontherocks.com                                         | War on the Rocks                             | U.S. defense        |
| [www.aei.org](http://www.aei.org)                         | American Enterprise Institute                | U.S. policy         |
| responsiblestatecraft.org                                 | Responsible Statecraft                       | U.S. foreign policy |
| [www.fpri.org](http://www.fpri.org)                       | Foreign Policy Research Institute            | Global              |
| jamestown.org                                             | Jamestown Foundation                         | Eurasia             |
| [www.chathamhouse.org](http://www.chathamhouse.org)       | Chatham House                                | UK                  |
| ecfr.eu                                                   | European Council on Foreign Relations        | Europe              |
| [www.gmfus.org](http://www.gmfus.org)                     | German Marshall Fund                         | Transatlantic       |
| [www.wilsoncenter.org](http://www.wilsoncenter.org)       | Wilson Center                                | Global              |
| [www.lowyinstitute.org](http://www.lowyinstitute.org)     | Lowy Institute                               | Asia-Pacific        |
| [www.mei.edu](http://www.mei.edu)                         | Middle East Institute                        | Middle East         |
| [www.stimson.org](http://www.stimson.org)                 | Stimson Center                               | Global security     |
| [www.cnas.org](http://www.cnas.org)                       | Center for New American Security             | U.S. security       |
| carnegieendowment.org                                     | Carnegie Endowment                           | Global              |
| [www.rand.org](http://www.rand.org)                       | RAND Corporation                             | Policy research     |
| fas.org                                                   | Federation of American Scientists            | Science policy      |
| [www.armscontrol.org](http://www.armscontrol.org)         | Arms Control Association                     | Arms control        |
| [www.nti.org](http://www.nti.org)                         | Nuclear Threat Initiative                    | Nuclear security    |
| thebulletin.org                                           | Bulletin of the Atomic Scientists            | Nuclear risk        |
| [www.iss.europa.eu](http://www.iss.europa.eu)             | EU Institute for Security Studies            | European security   |
| [www.crisisgroup.org](http://www.crisisgroup.org)         | International Crisis Group                   | Conflict prevention |

### Technology & Cybersecurity

| Domain                                                      | Source                | Focus                  |
| ----------------------------------------------------------- | --------------------- | ---------------------- |
| techcrunch.com                                              | TechCrunch            | Startups               |
| [www.theverge.com](http://www.theverge.com)                 | The Verge             | Tech news              |
| feeds.arstechnica.com                                       | Ars Technica          | Technology             |
| huggingface.co                                              | Hugging Face          | AI/ML                  |
| [www.technologyreview.com](http://www.technologyreview.com) | MIT Technology Review | Tech trends            |
| rss.arxiv.org                                               | ArXiv                 | Research papers        |
| export.arxiv.org                                            | ArXiv API             | Research papers        |
| openai.com                                                  | OpenAI                | AI research            |
| [www.zdnet.com](http://www.zdnet.com)                       | ZDNet                 | Enterprise tech        |
| [www.techmeme.com](http://www.techmeme.com)                 | Techmeme              | Tech news aggregator   |
| [www.darkreading.com](http://www.darkreading.com)           | Dark Reading          | Cybersecurity          |
| [www.schneier.com](http://www.schneier.com)                 | Schneier on Security  | Security research      |
| krebsonsecurity.com                                         | Krebs on Security     | Cybersecurity          |
| [www.ransomware.live](http://www.ransomware.live)           | Ransomware.live       | Ransomware tracking    |
| [www.anandtech.com](http://www.anandtech.com)               | AnandTech             | Hardware               |
| [www.tomshardware.com](http://www.tomshardware.com)         | Tom's Hardware        | Hardware               |
| [www.semianalysis.com](http://www.semianalysis.com)         | SemiAnalysis          | Semiconductor analysis |
| feed.infoq.com                                              | InfoQ                 | Software development   |
| thenewstack.io                                              | The New Stack         | Cloud native           |
| devops.com                                                  | DevOps.com            | DevOps                 |
| dev.to                                                      | Dev.to                | Developer community    |
| lobste.rs                                                   | Lobsters              | Tech community         |
| changelog.com                                               | Changelog             | Developer news         |
| [www.producthunt.com](http://www.producthunt.com)           | Product Hunt          | Product launches       |
| [www.axios.com](http://www.axios.com)                       | Axios                 | Tech/business          |
| api.axios.com                                               | Axios API             | Tech/business          |
| github.blog                                                 | GitHub Blog           | Developer platform     |
| githubnext.com                                              | GitHub Next           | Experimental projects  |
| [www.engadget.com](http://www.engadget.com)                 | Engadget              | Consumer tech          |
| news.mit.edu                                                | MIT News              | Research               |
| dev.events                                                  | Dev Events            | Tech conferences       |

### Venture Capital & Startups

| Domain                                                      | Source                  | Focus               |
| ----------------------------------------------------------- | ----------------------- | ------------------- |
| [www.ycombinator.com](http://www.ycombinator.com)           | Y Combinator            | Accelerator         |
| a16z.com                                                    | Andreessen Horowitz     | VC insights         |
| review\.firstround.com                                      | First Round Review      | Startup advice      |
| [www.sequoiacap.com](http://www.sequoiacap.com)             | Sequoia Capital         | VC                  |
| [www.nfx.com](http://www.nfx.com)                           | NFX                     | Network effects     |
| bothsidesofthetable.com                                     | Both Sides of the Table | VC perspective      |
| [www.lennysnewsletter.com](http://www.lennysnewsletter.com) | Lenny's Newsletter      | Product/growth      |
| stratechery.com                                             | Stratechery             | Tech strategy       |
| seekingalpha.com                                            | Seeking Alpha           | Stock analysis      |
| news.crunchbase.com                                         | Crunchbase News         | Funding news        |
| [www.saastr.com](http://www.saastr.com)                     | SaaStr                  | SaaS                |
| feeds.feedburner.com                                        | FeedBurner (various)    | Multiple sources    |
| pitchbook.com                                               | PitchBook               | PE/VC data          |
| [www.cbinsights.com](http://www.cbinsights.com)             | CB Insights             | Market intelligence |
| [www.techstars.com](http://www.techstars.com)               | Techstars               | Accelerator         |
| layoffs.fyi                                                 | Layoffs.fyi             | Tech layoffs        |

### Regional Startup News

| Domain                                            | Source         | Region        |
| ------------------------------------------------- | -------------- | ------------- |
| [www.eu-startups.com](http://www.eu-startups.com) | EU-Startups    | Europe        |
| tech.eu                                           | Tech.eu        | Europe        |
| sifted.eu                                         | Sifted         | Europe        |
| [www.techinasia.com](http://www.techinasia.com)   | Tech in Asia   | Asia          |
| kr-asia.com                                       | KrASIA         | Asia          |
| techcabal.com                                     | TechCabal      | Africa        |
| disrupt-africa.com                                | Disrupt Africa | Africa        |
| lavca.org                                         | LAVCA          | Latin America |
| contxto.com                                       | Contxto        | Latin America |
| inc42.com                                         | Inc42          | India         |
| yourstory.com                                     | YourStory      | India         |

### Finance & Markets

| Domain                                      | Source        | Focus         |
| ------------------------------------------- | ------------- | ------------- |
| [www.cnbc.com](http://www.cnbc.com)         | CNBC          | Markets       |
| feeds.marketwatch.com                       | MarketWatch   | Stocks        |
| finance.yahoo.com                           | Yahoo Finance | Markets       |
| [www.coindesk.com](http://www.coindesk.com) | CoinDesk      | Crypto        |
| cointelegraph.com                           | Cointelegraph | Crypto        |
| asia.nikkei.com                             | Nikkei Asia   | Asian markets |

### U.S. Government

| Domain                                                  | Source                | Agency            |
| ------------------------------------------------------- | --------------------- | ----------------- |
| [www.whitehouse.gov](http://www.whitehouse.gov)         | White House           | Executive         |
| [www.state.gov](http://www.state.gov)                   | State Department      | Diplomacy         |
| [www.defense.gov](http://www.defense.gov)               | Department of Defense | Military          |
| home.treasury.gov                                       | Treasury              | Finance           |
| [www.justice.gov](http://www.justice.gov)               | Department of Justice | Law enforcement   |
| tools.cdc.gov                                           | CDC                   | Health            |
| [www.fema.gov](http://www.fema.gov)                     | FEMA                  | Emergency         |
| [www.dhs.gov](http://www.dhs.gov)                       | DHS                   | Homeland security |
| [www.cisa.gov](http://www.cisa.gov)                     | CISA                  | Cybersecurity     |
| [www.federalreserve.gov](http://www.federalreserve.gov) | Federal Reserve       | Monetary policy   |
| [www.sec.gov](http://www.sec.gov)                       | SEC                   | Securities        |

### International Organizations

| Domain                                      | Source         | Type              |
| ------------------------------------------- | -------------- | ----------------- |
| news.un.org                                 | United Nations | Intergovernmental |
| [www.iaea.org](http://www.iaea.org)         | IAEA           | Nuclear agency    |
| [www.who.int](http://www.who.int)           | WHO            | Health            |
| [www.afro.who.int](http://www.afro.who.int) | WHO Africa     | Regional health   |
| [www.fao.org](http://www.fao.org)           | FAO            | Food/agriculture  |
| worldbank.org                               | World Bank     | Development       |
| [www.imf.org](http://www.imf.org)           | IMF            | Financial         |

### Regional & Language-Specific

<Tabs>
  <Tab title="Europe">
    | Domain                                      | Source         | Language   |
    | ------------------------------------------- | -------------- | ---------- |
    | [www.euronews.com](http://www.euronews.com) | Euronews       | English    |
    | de.euronews.com                             | Euronews       | German     |
    | es.euronews.com                             | Euronews       | Spanish    |
    | fr.euronews.com                             | Euronews       | French     |
    | it.euronews.com                             | Euronews       | Italian    |
    | pt.euronews.com                             | Euronews       | Portuguese |
    | ru.euronews.com                             | Euronews       | Russian    |
    | [www.france24.com](http://www.france24.com) | France 24      | English    |
    | rss.dw\.com                                 | Deutsche Welle | Multiple   |
    | [www.gov.uk](http://www.gov.uk)             | UK Government  | English    |
  </Tab>

  <Tab title="Middle East">
    | Domain                                                | Source           | Language |
    | ----------------------------------------------------- | ---------------- | -------- |
    | english.alarabiya.net                                 | Al Arabiya       | English  |
    | [www.arabnews.com](http://www.arabnews.com)           | Arab News        | English  |
    | [www.timesofisrael.com](http://www.timesofisrael.com) | Times of Israel  | English  |
    | [www.haaretz.com](http://www.haaretz.com)             | Haaretz          | English  |
    | [www.lorientlejour.com](http://www.lorientlejour.com) | L'Orient-Le Jour | French   |
  </Tab>

  <Tab title="Africa">
    | Domain                                                  | Source          | Region       |
    | ------------------------------------------------------- | --------------- | ------------ |
    | [www.africanews.com](http://www.africanews.com)         | Africanews      | Pan-African  |
    | fr.africanews.com                                       | Africanews      | French       |
    | [www.jeuneafrique.com](http://www.jeuneafrique.com)     | Jeune Afrique   | Francophone  |
    | feeds.24.com                                            | News24          | South Africa |
    | feeds.news24.com                                        | News24 main     | South Africa |
    | feeds.capi24.com                                        | News24 redirect | South Africa |
    | [www.premiumtimesng.com](http://www.premiumtimesng.com) | Premium Times   | Nigeria      |
    | [www.vanguardngr.com](http://www.vanguardngr.com)       | Vanguard        | Nigeria      |
    | [www.channelstv.com](http://www.channelstv.com)         | Channels TV     | Nigeria      |
    | dailytrust.com                                          | Daily Trust     | Nigeria      |
    | [www.thisdaylive.com](http://www.thisdaylive.com)       | ThisDay         | Nigeria      |
  </Tab>

  <Tab title="Asia-Pacific">
    | Domain                                                    | Source                   | Region    |
    | --------------------------------------------------------- | ------------------------ | --------- |
    | [www.scmp.com](http://www.scmp.com)                       | South China Morning Post | Hong Kong |
    | [www.channelnewsasia.com](http://www.channelnewsasia.com) | Channel NewsAsia         | Singapore |
    | japantoday.com                                            | Japan Today              | Japan     |
    | [www.asahi.com](http://www.asahi.com)                     | Asahi Shimbun            | Japan     |
    | [www.thehindu.com](http://www.thehindu.com)               | The Hindu                | India     |
    | indianexpress.com                                         | Indian Express           | India     |
    | [www.bangkokpost.com](http://www.bangkokpost.com)         | Bangkok Post             | Thailand  |
    | vnexpress.net                                             | VnExpress                | Vietnam   |
    | [www.abc.net.au](http://www.abc.net.au)                   | ABC Australia            | Australia |
    | islandtimes.org                                           | Island Times             | Pacific   |
  </Tab>

  <Tab title="Latin America">
    | Domain                                                        | Source            | Country   |
    | ------------------------------------------------------------- | ----------------- | --------- |
    | [www.clarin.com](http://www.clarin.com)                       | Clarín            | Argentina |
    | oglobo.globo.com                                              | O Globo           | Brazil    |
    | feeds.folha.uol.com.br                                        | Folha de S.Paulo  | Brazil    |
    | [www.brasilparalelo.com.br](http://www.brasilparalelo.com.br) | Brasil Paralelo   | Brazil    |
    | [www.eltiempo.com](http://www.eltiempo.com)                   | El Tiempo         | Colombia  |
    | [www.lasillavacia.com](http://www.lasillavacia.com)           | La Silla Vacía    | Colombia  |
    | [www.eluniversal.com.mx](http://www.eluniversal.com.mx)       | El Universal      | Mexico    |
    | mexiconewsdaily.com                                           | Mexico News Daily | Mexico    |
    | animalpolitico.com                                            | Animal Político   | Mexico    |
    | [www.proceso.com.mx](http://www.proceso.com.mx)               | Proceso           | Mexico    |
    | [www.milenio.com](http://www.milenio.com)                     | Milenio           | Mexico    |
    | insightcrime.org                                              | InSight Crime     | Regional  |
  </Tab>

  <Tab title="Eastern Europe">
    | Domain                                                  | Source               | Region  |
    | ------------------------------------------------------- | -------------------- | ------- |
    | kyivindependent.com                                     | Kyiv Independent     | Ukraine |
    | [www.themoscowtimes.com](http://www.themoscowtimes.com) | Moscow Times         | Russia  |
    | [www.rt.com](http://www.rt.com)                         | RT (Russia Today)    | Russia  |
    | meduza.io                                               | Meduza               | Russia  |
    | novayagazeta.eu                                         | Novaya Gazeta Europe | Russia  |
    | tvn24.pl                                                | TVN24                | Poland  |
    | [www.polsatnews.pl](http://www.polsatnews.pl)           | Polsat News          | Poland  |
    | [www.rp.pl](http://www.rp.pl)                           | Rzeczpospolita       | Poland  |
  </Tab>

  <Tab title="Other Languages">
    | Domain                                            | Source              | Language |
    | ------------------------------------------------- | ------------------- | -------- |
    | [www.lemonde.fr](http://www.lemonde.fr)           | Le Monde            | French   |
    | [www.spiegel.de](http://www.spiegel.de)           | Der Spiegel         | German   |
    | [www.tagesschau.de](http://www.tagesschau.de)     | Tagesschau          | German   |
    | newsfeed.zeit.de                                  | Die Zeit            | German   |
    | [www.bild.de](http://www.bild.de)                 | Bild                | German   |
    | feeds.elpais.com                                  | El País             | Spanish  |
    | e00-elmundo.uecdn.es                              | El Mundo            | Spanish  |
    | [www.repubblica.it](http://www.repubblica.it)     | La Repubblica       | Italian  |
    | [www.ansa.it](http://www.ansa.it)                 | ANSA                | Italian  |
    | xml2.corriereobjects.it                           | Corriere della Sera | Italian  |
    | feeds.nos.nl                                      | NOS                 | Dutch    |
    | [www.nrc.nl](http://www.nrc.nl)                   | NRC Handelsblad     | Dutch    |
    | [www.telegraaf.nl](http://www.telegraaf.nl)       | De Telegraaf        | Dutch    |
    | [www.dn.se](http://www.dn.se)                     | Dagens Nyheter      | Swedish  |
    | [www.svd.se](http://www.svd.se)                   | Svenska Dagbladet   | Swedish  |
    | [www.svt.se](http://www.svt.se)                   | SVT                 | Swedish  |
    | [www.hurriyet.com.tr](http://www.hurriyet.com.tr) | Hürriyet            | Turkish  |
    | [www.naftemporiki.gr](http://www.naftemporiki.gr) | Naftemporiki        | Greek    |
    | [www.in.gr](http://www.in.gr)                     | In.gr               | Greek    |
    | [www.iefimerida.gr](http://www.iefimerida.gr)     | iefimerida          | Greek    |
  </Tab>
</Tabs>

### Security Advisories

| Domain                                                      | Source                          | Type              |
| ----------------------------------------------------------- | ------------------------------- | ----------------- |
| travel.state.gov                                            | U.S. State Dept                 | Travel advisories |
| [www.smartraveller.gov.au](http://www.smartraveller.gov.au) | Australia DFAT                  | Travel advisories |
| [www.safetravel.govt.nz](http://www.safetravel.govt.nz)     | New Zealand MFAT                | Travel advisories |
| th.usembassy.gov                                            | U.S. Embassy Thailand           | Security alerts   |
| ae.usembassy.gov                                            | U.S. Embassy UAE                | Security alerts   |
| de.usembassy.gov                                            | U.S. Embassy Germany            | Security alerts   |
| ua.usembassy.gov                                            | U.S. Embassy Ukraine            | Security alerts   |
| mx.usembassy.gov                                            | U.S. Embassy Mexico             | Security alerts   |
| in.usembassy.gov                                            | U.S. Embassy India              | Security alerts   |
| pk.usembassy.gov                                            | U.S. Embassy Pakistan           | Security alerts   |
| co.usembassy.gov                                            | U.S. Embassy Colombia           | Security alerts   |
| pl.usembassy.gov                                            | U.S. Embassy Poland             | Security alerts   |
| bd.usembassy.gov                                            | U.S. Embassy Bangladesh         | Security alerts   |
| it.usembassy.gov                                            | U.S. Embassy Italy              | Security alerts   |
| do.usembassy.gov                                            | U.S. Embassy Dominican Republic | Security alerts   |
| mm.usembassy.gov                                            | U.S. Embassy Myanmar            | Security alerts   |
| wwwnc.cdc.gov                                               | CDC                             | Health advisories |
| [www.ecdc.europa.eu](http://www.ecdc.europa.eu)             | ECDC                            | Health advisories |

### Maritime & Aviation

| Domain                            | Source       | Focus             |
| --------------------------------- | ------------ | ----------------- |
| [www.twz.com](http://www.twz.com) | The War Zone | Military aviation |
| gcaptain.com                      | gCaptain     | Maritime news     |

### Positive News (Happy Variant)

| Domain                                                        | Source                 | Focus                   |
| ------------------------------------------------------------- | ---------------------- | ----------------------- |
| [www.goodnewsnetwork.org](http://www.goodnewsnetwork.org)     | Good News Network      | Positive stories        |
| [www.positive.news](http://www.positive.news)                 | Positive News          | Constructive journalism |
| reasonstobecheerful.world                                     | Reasons to be Cheerful | Solutions journalism    |
| [www.optimistdaily.com](http://www.optimistdaily.com)         | Optimist Daily         | Positive trends         |
| [www.upworthy.com](http://www.upworthy.com)                   | Upworthy               | Inspiring stories       |
| [www.dailygood.org](http://www.dailygood.org)                 | DailyGood              | Good deeds              |
| [www.goodgoodgood.co](http://www.goodgoodgood.co)             | Good Good Good         | Positive impact         |
| [www.good.is](http://www.good.is)                             | Good.is                | Social progress         |
| [www.sunnyskyz.com](http://www.sunnyskyz.com)                 | Sunny Skyz             | Feel-good news          |
| thebetterindia.com                                            | The Better India       | Positive India news     |
| singularityhub.com                                            | Singularity Hub        | Tech optimism           |
| humanprogress.org                                             | HumanProgress          | Progress metrics        |
| greatergood.berkeley.edu                                      | Greater Good           | Science of happiness    |
| [www.onlygoodnewsdaily.com](http://www.onlygoodnewsdaily.com) | Only Good News Daily   | Positive headlines      |
| [www.sciencedaily.com](http://www.sciencedaily.com)           | ScienceDaily           | Research breakthroughs  |
| feeds.nature.com                                              | Nature                 | Scientific advances     |
| [www.nature.com](http://www.nature.com)                       | Nature                 | Scientific research     |
| [www.livescience.com](http://www.livescience.com)             | Live Science           | Science discoveries     |
| [www.newscientist.com](http://www.newscientist.com)           | New Scientist          | Science news            |

### Community & Discussion

| Domain               | Source          | Type            |
| -------------------- | --------------- | --------------- |
| news.ycombinator.com | Hacker News     | Tech discussion |
| hnrss.org            | Hacker News RSS | Tech discussion |

## Feed Processing

### Instant Flat Render

News items appear immediately as a flat list the moment feed data arrives. ML-based clustering (topic grouping, entity extraction, sentiment analysis) runs asynchronously in the background and progressively upgrades the view.

### Virtual Scrolling

News panels with 15+ items use a custom virtual list renderer:

* Only visible items + 3-item overscan buffer are rendered
* `requestAnimationFrame`-batched scroll handling
* DOM element pooling and recycling
* Responsive adaptation via `ResizeObserver`

### Custom Keyword Monitors

User-defined keyword alerts with:

* Word-boundary matching (prevents "ai" from matching "train")
* Automatic color-coding from 10-color palette
* Multi-keyword support (comma-separated)
* Real-time match counts
* Search across titles and descriptions

## Blocked Domains

The following domains are explicitly blocked (deprecated sources):

* `rsshub.app` - Returns 410 Gone (stale clients still request these)

## Circuit Breaker Behavior

When an RSS feed fails:

1. **Direct fetch attempted** - Standard HTTP request
2. **Railway relay fallback** - If direct fails, routes through relay
3. **5-minute cooldown** - Failed feed pauses before retry
4. **Other feeds unaffected** - Per-feed isolation
5. **Automatic recovery** - Resumes after cooldown expires

## Feed Deduplication

Headlines are deduplicated before LLM summarization:

* **Jaccard similarity** threshold of 0.6 (60% word overlap)
* **Reduces prompt size** by 20-40%
* **Prevents LLM waste** on repeated stories

## Related Resources

<CardGroup cols={2}>
  <Card title="Data Sources Overview" icon="database" href="/api/data-sources/overview">
    Complete data source catalog
  </Card>

  <Card title="External APIs" icon="plug" href="/api/data-sources/external-apis">
    API integration specifications
  </Card>
</CardGroup>
