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.
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
