What Is Shield?
Shield is a browser extension built by Symvek that protects your privacy while browsing. Unlike most privacy tools, Shield collects absolutely zero data about you.
What Shield does
Tracker blocking: Blocks connections to 22,000+ known tracking domains. Ad networks, analytics services, and data brokers are prevented from loading.
Cookie consent auto-rejection: Automatically rejects cookie consent banners from 100+ known consent management platforms. No more clicking “Reject All” on every website.
Browser fingerprint protection: Randomizes canvas, WebGL, audio, and font enumeration data so your browser fingerprint changes each session.
URL tracking parameter stripping: Removes 60+ tracking parameters from URLs (utm_source, fbclid, gclid, etc.) so your clicks can’t be tracked across sites.
What Shield doesn’t do
- Doesn’t collect data: We never see your browsing history, search queries, or site visits
- Doesn’t phone home: No telemetry, no usage analytics, no crash reports sent to our servers
- Doesn’t slow browsing: Blocking trackers actually makes pages load faster
- Doesn’t break websites: Carefully tuned to block trackers without affecting site functionality
How it compares
| Feature | Shield | uBlock Origin | Privacy Badger | Ghostery |
|---|---|---|---|---|
| Tracker blocking | 22K+ | Custom lists | Learning-based | 4.5K+ |
| Cookie consent | 100+ CMPs | No | No | Limited |
| Fingerprint protection | Yes | No | No | No |
| URL cleaning | 60+ params | No | No | Limited |
| Data collection | Zero | Zero | Minimal | Some |
Where to get it
- Chrome: live on the Chrome Web Store, free
- Firefox: Firefox Add-ons (on the way)
Shield handles the digital layer of privacy. Sentinel handles the physical layer. Together, they cover the two most important privacy domains.
The business model
Shield is free with essential features. Shield Premium ($4.99/mo) adds the visibility and intelligence layer (fingerprint alerts, a tracker network graph, history, and one-click data-request tools). Revenue comes from subscriptions, and by architecture there is no user-data pipeline to monetize: Stripe handles payment and holds your name, email, and billing address (card data never touches Symvek), the free extension has no backend to call at all, and Premium makes a single license check that sends only a one-way hash of your key and a hashed device id, never your browsing.