Problem Demo How It Works Features Install Free Back to Extensions
Critical Security Gap

Your extensions are watching you.

Chrome extensions get sold to hackers. Google takes months to react. Seerguard is the first tool that protects you from your own extensions. Free, no accounts, your data stays local.

Install Seerguard Free See Live Demo
3.2B
Users at Risk
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Tools Protect Them
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Seerguard
The Problem

Your browser has a massive security hole.

Chrome extensions have full access to your data. When they go malicious, you're completely exposed.

💰
Extensions Get Sold
Trusted extensions with millions of users are quietly sold to data brokers and hackers who push malicious updates.
280+
🕰️
Google Is Slow
Google kept featuring known malicious extensions for months after public disclosure. Their review can't keep up.
Months
🚫
Zero Protection
No antivirus, no browser feature scans your extensions for threats. You have absolutely no defense.
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Live Demo

See Seerguard in action.

This simulates a real scan. The actual extension runs against your installed extensions.

Seerguard Trust Scanner v1.0.0
Click "Run Scan" to start the demo
How It Works

6-layer trust analysis.

Seerguard uses a weighted multi-factor algorithm backed by real threat intelligence.

01
🔍 Permission Analysis
Every permission gets a risk weight. debugger and <all_urls> are critical (-20pts each). Max deduction: 40 points.
02
🌐 Seerguard API & CRXcavator
Uses our Seerguard API for permission, CSP, RetireJS, and vulnerability analysis. CRXcavator as fallback. Max deduction: 30 points.
03
📡 Network Monitoring
Tracks which domains each extension contacts. Flags tracking pixels, suspicious TLDs, and URL shorteners. Max deduction: 15 points.
04
🏪 Web Store Verification
Checks if extensions have been removed from the Chrome Web Store. If Google pulled it but it's still installed — critical red flag.
05
🎭 Behavioral Analysis
"Free VPN" extensions are the #1 malware vector. Seerguard flags risky categories: VPNs, PDF converters, downloaders. Max deduction: 25 points.
06
📊 Install Source Analysis
Web Store installs are safest. Developer mode (-12pts). Sideloaded (-20pts). Custom update servers bypass Google's review. Max deduction: 20 points.
Understanding Scores

What do the numbers mean?

Lower risk scores are better. Here's how to interpret them.

Risk Score Category Meaning
0–200 Low Risk Extension passes static checks. Generally safe.
201–400 Moderate Some concerns. Review recommended.
401–600 Elevated Higher risk. Use with caution.
601+ High Risk Significant concerns. Consider removing.

Seerguard Trust Score (0–100) combines this with permissions, network behavior, install source, and more.

Comparison

Nothing else does what Seerguard does.

Capability Antivirus Chrome Others Seerguard
Scans other extensions———✓
Own API (free)———✓
Network monitoring———✓
Detects removed extensions———✓
Weighted trust scoring———✓
Permission tracking———✓
Automated scans———✓
Zero data collection—✓?✓
Features

Everything you need.

🔍
Instant Scan
One click to analyze every installed extension with full trust scoring.
🌐
Seerguard API
Our backend analyzes permissions, CSP, vulnerabilities & Web Store data.
📡
Network Monitor
Tracks which servers extensions contact. Flags suspicious domains.
🔔
Auto Protection
Weekly scans + daily checks + instant alerts when threats appear.
📉
Change Detection
Tracks permission additions, updates, and trust score drops.
🗑️
One-Click Remove
Remove dangerous extensions instantly without digging through settings.
📋
Export Reports
Generate downloadable security reports for IT teams.
🔒
Zero Collection
No accounts. No telemetry. All data stays on your device.
Protect your browser in 60 seconds.
Free forever. Uses our own Seerguard API. No accounts. No data collection.
Install Seerguard Free
1. Download → 2. Enable Developer Mode → 3. Load Unpacked → 4. Scan