What is Passlit | Block AI Trackers?

Passlit detects every tracker following you in real time and removes your data from 4,000+ data brokers. Free for Chrome. Shield from $9.99/month.

How AI Companies Track and Use Your Browsing Data

AI tools are being trained on your browsing history. Here is exactly how it happens and how to stop it.

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About — Passlit builds privacy tools that block trackers and remove your data from broker sites, cutting off the spam calls and ads they cause.
Contact — Questions about blocking trackers or data broker removal? Reach the Passlit team here.
Data Removal — Passlit recommends Optery for data broker removal, PCMag Editors' Choice for personal data removal 2022-2025, covering 630+ broker sites.
FAQ — Answers to common questions about blocking web trackers, removing your data from broker sites, and reducing spam calls with Passlit.
Glossary — English definitions of data brokers, web trackers, behavioral advertising, CCPA, GDPR, and every online privacy term.
Openbook — Passlit Openbook is a free browser extension that detects and blocks the trackers responsible for spam calls, junk email, and ads that follow you everywhere.
Privacy Score — Check your free privacy score in seconds and find out how many data brokers have your personal information exposed online.
Reports — Research and guides on data brokers, online trackers, AI surveillance, and how to stop the spam calls and ads they cause.
Shield — Shield blocks tracker domains, auto-clears your data every 30 min, and rejects cookie banners. In our testing, up to 40% faster page loads. $14.99/mo.
Support — Get help with the Passlit browser extension and Shield data removal service. Troubleshooting, account help, and contact options.
Splash Home
Reports / Best Privacy Extensions Chrome 2026 — The Chrome extensions that actually block trackers and protect your data in 2026. Ranked and tested.
Reports / Data Broker List — The 50 most active data broker sites collecting and selling your phone number and personal data to telemarketers and spammers.
Reports / Data Broker Statistics — How big is the data broker industry? How many companies have your data? The numbers behind a $330 billion problem.
Reports / Deleteme Vs Incogni Vs Optery — Real differences between DeleteMe, Incogni, and Optery on pricing, coverage, and reporting. An honest comparison before you choose a data removal service.
Reports / Do Trackers Slow Down Your Internet — Third party trackers add significant load time to every page you visit. Here is what the data shows.
Reports / How Ai Companies Use Your Browsing Data — AI tools are being trained on your browsing history. Here is exactly how it happens and how to stop it.
Reports / How Many Data Brokers Have Your Information — 98% of Americans appear on 35 or more data broker sites. Here is exactly how many companies have your data.
Reports / How Many Trackers Does Yahoo Finance Load — Yahoo Finance loads more trackers than almost any site on the web. Here is exactly what is running on every page.
Reports / How To Block Ai Tracking — AI companies collect your browsing data to train their models. Here is exactly how to stop them.
Reports / How To Opt Out Of Data Brokers — Step by step guide to removing your personal data from the most active data broker sites in 2026.
Reports / How To Remove Your Personal Data From Data Brokers — 4,000+ companies are selling your personal data right now. Here is exactly how to find them, what laws require deletion, and how to make them stop.
Reports / How To See Which Websites Are Tracking You — Use free browser tools to reveal every tracker loading in the background when you visit a site.
Reports / How To Stop Spam Calls — Spam calls come from data brokers selling your phone number. Here is how to remove it at the source and cut robocalls within 60 days.
Reports / How To Stop Website Trackers — A layered approach that actually works to block tracking scripts and stop companies following you across the web.
Reports / Is My Personal Information On The Internet — Your name, address, and phone number are likely already published online. Here is where to find it and how to remove it.
Reports / Most Tracked Websites 2026 — Which websites load the most trackers? A ranked breakdown of the most surveillance heavy sites on the internet.
Reports / Optery Review — Independent review of Optery's pricing, coverage, and PCMag Editors' Choice award. See what testers found before you sign up for data removal.
Reports / Top Data Removal Services — Side-by-side comparison of pricing, coverage, and proof of removal for the top data broker removal services. See what actually differs in 2026.
Reports / What Is A Data Broker — Data brokers collect and sell your personal data without consent. Here is what they hold, who buys it, and how to force deletion.
Reports / What Is Behavioral Advertising — Behavioral advertising tracks everything you do online to target you with ads. Here is how it works and how to block it.
Reports / What Is Chrome Privacy Sandbox — Google's Privacy Sandbox replaces third party cookies but still enables tracking. Here is what it means for your privacy.
Reports / Who Is Tracking Me Online — Google, Meta, ad networks, and hundreds of invisible companies are tracking you right now. Here is exactly who they are.
Reports / Why Am I Getting So Many Spam Calls — Spam calls are not random. Data brokers sold your phone number to telemarketers. Here is exactly how it happens and how to stop it.
Reports / Best Browser Privacy Tools 2026 — See the browser privacy extensions that still work after Chrome's Manifest V3 changes. Ranked, compared, and tested for real tracker blocking.