Every Site Knows

In plain words

Every Site Knows is a directory launched in 2019 that tracks what information different websites collect about users. It helps people understand what data various sites know about them by showing the types of information gathered across the web. The tool is designed for anyone curious about their digital footprint and how much personal data is being collected during everyday browsing.

written from the facts on this page · September 2026

From the sources

Here

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  What every browser knows about you2016 · webkay.robinlinus.com · ▲553

  This is a demonstration of all the data your browser knows about you. All this data can be accessed by any website without asking you for any permission.

• 
  I created a collection of useful websites2022 · insanelyusefulwebsites.com · ▲232
• 
  Stackradar2024 · stackradar.co · ▲691

  The best tools on the internet, curated

• 
  Everything I Know Wiki2019 · wiki.nikitavoloboev.xyz · ▲434

  N. Voloboev is a developer and coder that has worked on several projects, and right now is creating a full wiki dedicated to the things he has learned during his time on them.

• 
  Everything a web page can learn about you, in plain EnglishSep 2026 · sessioncontext.org · ▲18

  Everything a single web page can work out about the browser, device and person that requested it — stated in plain English, with the raw values behind every claim.

• DT
  Discover the tech stack for any website2017 · sitestacks.com · ▲53

• 
  SimCity, but with Permits▲925

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 2d ago · permit.petercai.com

• IV
  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 14d ago · tanzaniaeducationproject.org

• 
  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 15d ago · bigwords.page

• 
  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 9d ago · guitoro.com

• 
  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 13d ago · carrierexplode.com

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  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 23d ago · space.bl2.net

• AR
  A retro video game console I've been working on in my free time▲2,690

  Software and hardware projects for fun from a guy who loves retro computing

  Life & fun · 2019 · internalregister.github.io

• 
  Accessible Brand Colors▲1,163

  A tool to make sure your brand colors are ADA compliant.

  Dev tools · 2019 · abc.useallfive.com

• 
  Checklist Design▲1,158

  The best UI and UX practices for production ready design

  Work · 2019 · checklist.design

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  Product Hunt Tab▲647

  A virtual co-working space in your browser's new tab

  Work · 2019

• 
  Notion 2.3▲622

  Notions big update, now with Evernote import and web clipper

  Work · 2019 · notion.so

• 
  Voiceflow▲607

  Build voice apps in your browser without coding

  Dev tools · 2019 · voiceflow.com