Free Chrome Extension

See What's Tracking You.
Take Back Control.

PERC Engage Web Shield scans any page and reveals every tracking script, analytics tag, and hidden tracker — then lets you block them with one click.

Add to Chrome — It's Free

Version 1.0.4 • Works with all Chromium browsers

No Data Collected

100% Local Analysis

Settings Stored Locally

Features

Everything You Need to See Under the Hood

From tracker detection to SEO auditing, get a full picture of what's happening on any web page.

Privacy & Security

Detect & Block Tracking Scripts

Instantly see which trackers are loading on any page. PERC Engage Web Shield identifies over 15 common tracking scripts and shows you exactly how they were detected.

Google Analytics, GTM, Facebook Pixel, and more
Detection via script tags, cookies, global variables, and inline code
One-click blocking mode — badge shows "BLK" when active
Cloudflare Zaraz detection with debug mode link

PERC Engage Web Shield showing tracking scripts detected on a page, including Google Analytics detection and Cloudflare Zaraz notice

SEO Audit

Instant SEO Overview & Heading Analysis

Get a snapshot of any page's SEO health at a glance. Check title tags, meta descriptions, canonical URLs, and more — with warnings when values fall outside recommended ranges.

Title & description length validation (30–60 and 120–160 characters)
Full heading structure with font, size, and color details
Quick links to PageSpeed Insights & GTmetrix
Copy All button for heading structure documentation

PERC Engage Web Shield showing heading analysis with H1 through H6 counts and image audit with missing alt text warnings

Links & Social

Link Analysis & Social Sharing Preview

Audit every link on the page and preview exactly how the page will appear when shared on social platforms. Export link data to CSV for deeper analysis.

Internal, external, and nofollow link counts
Filter by domain, hide duplicates, highlight nofollow
Export to CSV (Type, Follow, Anchor, URL)
Open Graph & Twitter Card previews side by side

PERC Engage Web Shield showing link analysis with totals and social sharing previews for Open Graph and Twitter Card

Technical SEO & Design

Structured Data & Brand Color Extraction

Confirm your structured data is present and correct, and extract the dominant brand colors from any page for design reference or documentation.

Detects JSON-LD, Microdata, and RDFa schema types
Schema type labels with short previews
Dominant color palette with hex codes
One-click copy for each color value

More Capabilities

Built for Marketers, Developers, and Privacy-Conscious Users

Image Auditing

See every image on the page with thumbnails, view & download options, and instant flagging of missing alt text for accessibility and SEO compliance.

Word Count & Keywords

Quickly see the page's word count, detected language, and extracted keywords — useful for content audits and competitor analysis.

Developer Friendly

Inspect tracking implementations, verify tag management setups, and debug Cloudflare Zaraz configurations — all without leaving the page.

Robots & Canonical Tags

Verify robots directives and canonical URLs at a glance to make sure search engines are indexing your pages the way you intend.

CSS Background Images

Goes beyond standard img tags to detect CSS background images too, showing the element info so you can find them in the DOM.

Grouped by Category

Trackers are organized by type — Analytics, Advertising, and Tag Management — so you can quickly see what's running and why.

Your Privacy Is the Whole Point

PERC Engage Web Shield runs entirely in your browser. No data is ever sent to external servers. Your settings, including blocking preferences, are stored locally on your device.

No data sold to third parties

No external data transfers

100% client-side processing

No creditworthiness tracking

Ready to See What's Really on Your Pages?

Install PERC Engage Web Shield for free and start analyzing any web page in seconds.