The Lens

01 · Who’s behind it

Who runs The Lens

The Lens lens.org

The Lens serves all the patents and scholarly work in the world as an open and secure digital public good, with user privacy a paramount focus.

Wikidata: online article and patent search facility and knowledge resource

Company

No imprint we could read

Online since

Not in the Internet Archive

Audience

In English

02 · Privacy

What The Lens tracks

What the homepage loads before you accept or decline cookies. A cookie banner should hold most of it back until you agree, and a tag manager can load more that we don’t see.

1. 01
   OpenAlex openalex.org English No trackers

   OpenAlex: The open catalog to the global research system

   OpenAlex indexes half a billion scholarly works, with their authors, institutions, sources and topics, and makes them free to search, analyze and reuse through our web app, API and bulk download.

   • Google Search Console
   • Google Workspace
   • Cloudflare Turnstile
   • Zendesk
   • Cloudflare
   • Cloudflare DNS

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2. 02
   Dimensions dimensions.ai English 1 tracker

   Dimensions AI | The most advanced scientific research database

   From idea to impact: Quickly navigate and connect grants, publications, datasets, clinical trials, patents, and policy documents.

   • Amazon SES
   • Google Search Console
   • Google Workspace
   • jQuery
   • Amazon Route 53
   • Atlassian

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3. 03
   Scopus scopus.com Top 10K English

   online bibliographic database

   • Microsoft 365
   • Amazon Route 53
   • Cloudflare
   • GlobalSign

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4. 04
   Semantic Scholar semanticscholar.org Top 10K English 3 trackers

   Semantic Scholar | AI-Powered Research Tool

   Semantic Scholar uses groundbreaking AI and engineering to understand the semantics of scientific literature to help Scholars discover relevant research.

   • Google Search Console
   • Google Workspace
   • nginx
   • Amazon Route 53
   • Amazon CloudFront
   • Google Analytics

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5. 05
   doaj.org

   curated list of peer-reviewed open-access journals

   • Google Search Console
   • Google Workspace
   • Cloudflare
   • Cloudflare DNS
   • Mailgun

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6. 06
   CourtListener.com courtlistener.com

   database of court documents maintained by the Free Law Project

   • Google Search Console
   • Google Workspace
   • Amazon Route 53
   • Amazon CloudFront

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7. 07
   SciELO scielo.org

   bibliographic database of open access journals

   • Google Search Console
   • Google Workspace
   • Microsoft 365
   • Meta Business Suite

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8. 08
   Europe PubMed Central europepmc.org Top 10K English

   database of biomedical research

   • Amazon Route 53
   • Cloudflare

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9. 09
   Our World in Data ourworldindata.org Top 10K English 2 trackers

   Our World in Data

   Research and data to make progress against the world’s largest problems.

   • Google Search Console
   • Google Workspace
   • Cloudflare
   • Cloudflare DNS
   • Cloudflare Web Analytics
   • Google Tag Manager

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10. 10
    cqvip.com English 1 tracker

    维普网

    维普官方网站-一站式学术资源检索平台，汇聚国内外期刊、会议论文、学位论文、专利、报纸等多元化学术资源，覆盖广泛学术领域，满足您各类学术需求；采用先进的智能检索技术，支持多维度检索，同时提供高级检索、专业检索等模式，满足不同用户的精细化需求；提供文献引证追踪、科学指标分析等功能，助用户洞悉学术脉络，把握研究前沿；支持在线阅读、一键下载等多种便捷功能，让用户随时随地享受学术盛宴。个性化设置功能，让学术空间更加贴合个人需求，提升科研效率。

    • Baidu Analytics
    • GlobalSign
    • Nuxt
    • Vue.js

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11. 11
    Wanfang Data wanfangdata.com.cn 1 tracker

    万方数据知识服务平台-科研学习全流程支持服务平台

    万方数据知识服务平台与全球国内外30余家大型数据库集成商、出版商、公益机构达成战略合作，整合数亿条全球优质学术资源，集成期刊、学位、会议、专利、科技报告、成果、标准、法规、地方志、视频等十余种学术资源类型。平台基于先进的人工智能技术，打造涵盖资源发现、学术不端检测、学术分析、学科选题以及知识管理等领域的智能化平台与工具，为用户提供海量资源的统一检索发现和获取、学术科研的全流程服务，帮助用户精准的发现知识、便捷的获取知识、更愉悦的创造知识。

    • jQuery
    • Baidu Analytics
    • Vue.js

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12. 12
    cnki.net Top 10K

    China's academic research database

    • GlobalSign

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13. 13
    Google google.com Top 100 German No trackers

    Google

    search engine by Google LLC

    • Google Search Console
    • Google Workspace
    • Apple Business
    • DocuSign
    • Google Web Server
    • Meta Business Suite

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14. 14
    SciELO Brasil scielo.br Top 10K English 1 tracker

    Brazil

    digital library

    • Google Search Console
    • Google Workspace
    • Bootstrap
    • bunny.net
    • Google Analytics
    • PHP

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15. 15
    Khan Academy khanacademy.org Top 10K English No trackers

    Client Challenge

    non-profit educational organization

    • Google Search Console
    • Google Workspace
    • Microsoft 365
    • Amazon Route 53
    • Zendesk
    • Apple Business

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16. 16
    PostgreSQL postgresql.org Top 10K English No trackers

    PostgreSQL: The world's most advanced open source database

    The official site for PostgreSQL, the world's most advanced open source database

    • Google Search Console
    • nginx
    • Font Awesome

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17. 17
    LibreTexts libretexts.org English No trackers

    Home | LibreTexts

    open access educational resource collection

    • Google Search Console
    • Google Workspace
    • jQuery
    • Atlassian
    • Bootstrap
    • Cloudflare

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18. 18
    British and Irish Legal Information Institute bailii.org English No trackers

    Making sure you're not a bot!

    legal database

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19. 19
    WorldCat worldcat.org Top 10K English 1 tracker

    WorldCat.org

    WorldCat.org is a global catalog of library materials. You can search for books, music, video, articles and much more at libraries near you.

    • Adobe Experience Manager
    • Cloudflare
    • Cloudflare DNS
    • Cloudflare Web Analytics
    • Google Tag Manager
    • Meta Business Suite

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20. 20
    Redalyc redalyc.org 1 tracker

    Sistema de Información Científica Redalyc, Red de Revistas Científicas

    Sistema de Información Científica Redalyc. Red de Revistas Científicas. Acceso abierto sin fines de lucro propiedad de la academia. Modelo de acceso abierto diamante.

    • AngularJS
    • Google Workspace
    • jQuery
    • Microsoft 365
    • Azure DNS
    • Font Awesome

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Closest first, by how much each site’s offer resembles The Lens’s. Trackers are counted the same way as above. Highlighted technologies are ones The Lens uses too. Votes and comments come from visitors and don’t change the order.

04 · History

No changes yet. Each new crawl is compared with the last one, and what The Lens adds, drops or rewrites shows up here.

05 · Details

How we measure

Alternatives are matched by what sites actually offer, from their homepages, Wikidata and a summary by Claude, in any language. Trackers and the rest of the stack come from the homepage’s code and DNS records.