Sentinel — Rate This Page

Sentinel lets you quickly rate the quality and safety of any web page you visit and securely submit that rating to a shared database. What it does • Adds a toolbar button so you can rate the current page in a few clicks • Lets you score pages on credibility, bias, clickbait, and overall quality • Optionally add a short note explaining why you rated the page that way • Stores ratings anonymously or linked to your Sentinel account • Uses strong cryptography to sign each rating before it’s sent to our backend (Supabase) How it works 1. Open any web page. 2. Click the Sentinel toolbar icon. 3. Pick a rating and (optionally) write a note. 4. Your review is hashed, signed locally in your browser, and sent to our API. Privacy & security • Sentinel only reads the active tab’s URL and title when you open the popup or submit a rating. • We do not read or store page contents. • Ratings are sent over HTTPS to our Supabase backend and may be used for aggregate analytics and machine-learning research to improve content quality tools. • No ads, no third-party trackers. This extension is part of the Sentinel project, which explores community-driven approaches for assessing online information quality.