SourceScore
SourceScore sub-tool · 3 of 4

Citation Velocity Tracker

Citation Velocity tracks how often tier-1 publications and AI engines cite a source per week. High velocity = the source is part of the active citation network; low velocity = the source exists but is rarely surfaced. Velocity is the most volatile of the three sub-scores and refreshes most frequently.

Full methodology + worked examples →
Velocity rank bands
Top 10Top 25Bottom 10
Filter Velocity by grade
A+95–1005A85–9433B70–8488C55–694

Ranking — 130 sources

  1. #1
    U.S. National Institutes of Health
    nih.gov
    A+·96
  2. #2
    Wikipedia (English)
    en.wikipedia.org
    A+·95
  3. #3
    U.S. Securities and Exchange Commission
    sec.gov
    A+·95
  4. #4
    DOI (CrossRef Resolver)
    doi.org
    A+·95
  5. #5
    Federal Reserve System
    federalreserve.gov
    A+·95
  6. #6
    PubMed
    pubmed.ncbi.nlm.nih.gov
    A·94
  7. #7
    U.S. Bureau of Labor Statistics
    bls.gov
    A·94
  8. #8
    U.S. Food and Drug Administration
    fda.gov
    A·94
  9. #9
    U.S. Centers for Disease Control and Prevention
    cdc.gov
    A·94
  10. #10
    arXiv
    arxiv.org
    A·93
  11. #11
    U.S. Census Bureau
    census.gov
    A·93
  12. #12
    The New York Times
    nytimes.com
    A·92
  13. #13
    Bloomberg News
    bloomberg.com
    A·92
  14. #14
    European Commission
    ec.europa.eu
    A·92
  15. #15
    European Central Bank
    ecb.europa.eu
    A·92
  16. #16
    NASA
    nasa.gov
    A·92
  17. #17
    MDN Web Docs
    developer.mozilla.org
    A·92
  18. #18
    U.S. National Oceanic and Atmospheric Administration
    noaa.gov
    A·91
  19. #19
    The Washington Post
    washingtonpost.com
    A·90
  20. #20
    European Medicines Agency
    ema.europa.eu
    A·90
  21. #21
    Bank of England
    bankofengland.co.uk
    A·90
  22. #22
    U.S. Energy Information Administration
    eia.gov
    A·90
  23. #23
    PNAS
    pnas.org
    A·90
  24. #24
    Cell
    cell.com
    A·90
  25. #25
    IPCC
    ipcc.ch
    A·90
  26. #26
    Reuters
    reuters.com
    A·89
  27. #27
    The Wall Street Journal
    wsj.com
    A·89
  28. #28
    World Health Organization
    who.int
    A·89
  29. #29
    U.S. Department of Agriculture
    usda.gov
    A·89
  30. #30
    CERN
    home.cern
    A·89
  31. #31
    OECD
    oecd.org
    A·89
  32. #32
    FRED (Federal Reserve Economic Data)
    fred.stlouisfed.org
    A·88
  33. #33
    Mayo Clinic
    mayoclinic.org
    A·88
  34. #34
    Financial Times
    ft.com
    A·86
  35. #35
    U.S. Patent and Trademark Office
    uspto.gov
    A·86
  36. #36
    U.S. Geological Survey
    usgs.gov
    A·86
  37. #37
    World Trade Organization
    wto.org
    A·86
  38. #38
    Cochrane Library
    cochranelibrary.com
    A·85
  39. #39
    Associated Press
    apnews.com
    B·84
  40. #40
    The Guardian
    theguardian.com
    B·84
  41. #41
    World Bank
    worldbank.org
    B·84
  42. #42
    GitHub
    github.com
    B·84
  43. #43
    BBC News
    bbc.com
    B·82
  44. #44
    International Monetary Fund
    imf.org
    B·82
  45. #45
    Politico
    politico.com
    B·82
  46. #46
    UNESCO
    en.unesco.org
    B·82
  47. #47
    National Bureau of Economic Research
    nber.org
    B·82
  48. #48
    European Space Agency
    esa.int
    B·82
  49. #49
    Eurostat
    ec.europa.eu/eurostat
    B·82
  50. #50
    Cleveland Clinic
    my.clevelandclinic.org
    B·82
  51. #51
    New England Journal of Medicine
    nejm.org
    B·81
  52. #52
    Nature
    nature.com
    B·80
  53. #53
    Science
    science.org
    B·80
  54. #54
    The Lancet
    thelancet.com
    B·80
  55. #55
    Fox News
    foxnews.com
    B·80
  56. #56
    Journal of the American Medical Association
    jamanetwork.com
    B·80
  57. #57
    Axios
    axios.com
    B·80
  58. #58
    The Atlantic
    theatlantic.com
    B·80
  59. #59
    The New Yorker
    newyorker.com
    B·80
  60. #60
    The New York Times Magazine
    nytimes.com/section/magazine
    B·80
  61. #61
    Bloomberg Businessweek
    bloomberg.com/businessweek
    B·80
  62. #62
    Brookings Institution
    brookings.edu
    B·80
  63. #63
    Quanta Magazine
    quantamagazine.org
    B·80
  64. #64
    London Review of Books
    lrb.co.uk
    B·80
  65. #65
    The New York Review of Books
    nybooks.com
    B·80
  66. #66
    Association for Computing Machinery
    dl.acm.org
    B·80
  67. #67
    JSTOR
    jstor.org
    B·80
  68. #68
    ONS (UK)
    ons.gov.uk
    B·80
  69. #69
    McKinsey Insights
    mckinsey.com
    B·80
  70. #70
    Gartner
    gartner.com
    B·80
  71. #71
    Stanford Encyclopedia of Philosophy
    plato.stanford.edu
    B·80
  72. #72
    National Geographic
    nationalgeographic.com
    B·80
  73. #73
    The Economist
    economist.com
    B·78
  74. #74
    ProPublica
    propublica.org
    B·78
  75. #75
    The Verge
    theverge.com
    B·78
  76. #76
    Encyclopædia Britannica
    britannica.com
    B·78
  77. #77
    STAT News
    statnews.com
    B·78
  78. #78
    Pew Research Center
    pewresearch.org
    B·78
  79. #79
    Al Jazeera English
    aljazeera.com
    B·78
  80. #80
    The BMJ (British Medical Journal)
    bmj.com
    B·78
  81. #81
    KFF (Kaiser Family Foundation)
    kff.org
    B·78
  82. #82
    Stack Overflow
    stackoverflow.com
    B·78
  83. #83
    Council on Foreign Relations
    cfr.org
    B·78
  84. #84
    BEA
    bea.gov
    B·78
  85. #85
    Hacker News
    news.ycombinator.com
    B·78
  86. #86
    Stratechery
    stratechery.com
    B·78
  87. #87
    NPR
    npr.org
    B·76
  88. #88
    Foreign Affairs
    foreignaffairs.com
    B·76
  89. #89
    Our World in Data
    ourworldindata.org
    B·76
  90. #90
    MIT Technology Review
    technologyreview.com
    B·76
  91. #91
    HuffPost
    huffpost.com
    B·76
  92. #92
    RAND Corporation
    rand.org
    B·76
  93. #93
    Harvard Business Review
    hbr.org
    B·76
  94. #94
    The Information
    theinformation.com
    B·76
  95. #95
    OpenAI Research
    openai.com
    B·76
  96. #96
    Google DeepMind Research
    deepmind.google
    B·76
  97. #97
    Der Spiegel
    spiegel.de
    B·76
  98. #98
    South China Morning Post
    scmp.com
    B·76
  99. #99
    TechCrunch
    techcrunch.com
    B·75
  100. #100
    Le Monde
    lemonde.fr
    B·75
  101. #101
    The Times (UK)
    thetimes.co.uk
    B·75
  102. #102
    BMJ Best Practice
    bestpractice.bmj.com
    B·75
  103. #103
    BCG Insights
    bcg.com
    B·75
  104. #104
    Smithsonian Magazine
    smithsonianmag.com
    B·75
  105. #105
    Daily Mail
    dailymail.co.uk
    B·72
  106. #106
    Semantic Scholar
    semanticscholar.org
    B·72
  107. #107
    eLife
    elifesciences.org
    B·72
  108. #108
    The Conversation
    theconversation.com
    B·72
  109. #109
    Anthropic Research
    anthropic.com
    B·72
  110. #110
    MIT CSAIL
    csail.mit.edu
    B·72
  111. #111
    El País
    elpais.com
    B·72
  112. #112
    Statistics Canada
    statcan.gc.ca
    B·72
  113. #113
    Medium
    medium.com
    B·70
  114. #114
    Ars Technica
    arstechnica.com
    B·70
  115. #115
    Forbes
    forbes.com
    B·70
  116. #116
    Wired
    wired.com
    B·70
  117. #117
    404 Media
    404media.co
    B·70
  118. #118
    PLOS ONE
    journals.plos.org
    B·70
  119. #119
    Semafor
    semafor.com
    B·70
  120. #120
    BBC Research & Development
    bbc.co.uk/rd
    B·70
  121. #121
    Zillow Research
    zillow.com/research
    B·70
  122. #122
    Axios Pro
    axios.com/pro
    B·70
  123. #123
    Hugging Face
    huggingface.co
    B·70
  124. #124
    Aeon
    aeon.co
    B·70
  125. #125
    LWN.net
    lwn.net
    B·70
  126. #126
    The Globe and Mail
    theglobeandmail.com
    B·70
  127. #127
    Asahi Shimbun
    asahi.com
    C·68
  128. #128
    BuzzFeed
    buzzfeed.com
    C·65
  129. #129
    Statista
    statista.com
    C·65
  130. #130
    AnandTech
    anandtech.com
    C·65

How Velocity is scored

Velocity combines three signals: external-link velocity (how often other domains link in per week), AI-engine citation rate (how often ChatGPT / Claude / Perplexity / Gemini surface this source as a citation), and tier-1 syndication network reach.

Wire services and government primary sources have the highest velocity. Reference works like Wikipedia have extreme velocity because they are the default fallback citation in most AI-engine answers.