Chrome extensions have full access to your data. They can read every page you visit, every password you type, every form you fill. And when a trusted extension gets sold to a data broker or pushed a malicious update — you have absolutely zero defense.
Chrome Web Store Featured by Google — Seerguard is the first tool that protects you from your own extensions. It scans every extension you have installed, analyzes its permissions, network behavior, install source, and Web Store status — then gives you a Trust Score so you know exactly what to keep and what to remove.
Your Browser Has a Massive Security Hole
Chrome extensions are the internet's blind spot. They operate with enormous power, minimal oversight, and zero transparency.
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Extensions Get Sold
Trusted extensions with millions of users are quietly sold to data brokers who push malicious updates.
280+
🕰️
Google Is Slow
Google kept featuring known malicious extensions for months after public disclosure.
Months
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Zero Protection
No antivirus, no browser feature scans your installed extensions for threats.
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6-Layer Trust Analysis
How Seerguard Protects You
Seerguard uses a weighted multi-factor algorithm backed by real threat intelligence. Every extension is analyzed across six dimensions.
Layer 01 · 🔍
Permission Analysis
Every permission gets a risk weight. debugger and <all_urls> are critical red flags. Max deduction: 40 pts.
Layer 02 · 🌐
Seerguard API & CRXcavator
Our backend analyzes permissions, CSP, RetireJS, and vulnerability data. CRXcavator as fallback. Max deduction: 30 pts.
Layer 03 · 📡
Network Monitoring
Tracks which domains each extension contacts. Flags tracking pixels, suspicious TLDs, and URL shorteners. Max deduction: 15 pts.
Layer 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.
Layer 05 · 🎭
Behavioral Analysis
"Free VPN" extensions are the #1 malware vector. Flags risky categories: VPNs, PDF converters, downloaders. Max deduction: 25 pts.
Layer 06 · 📊
Install Source Analysis
Web Store installs are safest. Developer mode (-12pts). Sideloaded (-20pts). Custom update servers bypass Google's review.
Interactive demo
See Seerguard in Action
Use the interactive demo below to walk through opening Seerguard from the toolbar, running a trust scan, and reading results. Runs in your browser; the real extension scans your installed extensions.
Understanding Scores
What Do the Numbers Mean?
| 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. |
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 | — | — | — | ✓ |
| Automated scans | — | — | — | ✓ |
| Zero data collection | — | ✓ | ? | ✓ |
Features
Everything You Need
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Instant Scan
One click to analyze every installed extension with full trust scoring.
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Seerguard API
Our backend analyzes permissions, CSP, vulnerabilities & Web Store data.
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Network Monitor
Tracks which servers extensions contact. Flags suspicious domains.
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Auto Protection
Weekly scans + daily checks + instant alerts when threats appear.
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Change Detection
Tracks permission additions, updates, and trust score drops.
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One-Click Remove
Remove dangerous extensions instantly without digging through settings.
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Export Reports
Generate downloadable security reports for IT teams.
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Zero Collection
No accounts. No telemetry. All data stays on your device.
Protect your browser in 60 seconds
🧩 Install Seerguard — Free
Add from Chrome Web Store → Pin to toolbar → Click Seerguard → Scan
