WebLenses
Web PageSpeed & Audit
Only for Mac
Free
Mac
Audit any website's live speed, Core Web Vitals, security, and accessibility directly inside Safari or the companion app. 100% on-device and private.
Understand what’s really happening inside every webpage you visit.
WebLens is an all-in-one website health inspector and diagnostic companion designed natively for Safari, iPhone, iPad, and Mac. Whether you're a web developer optimizing site performance, a designer verifying accessibility contrast, or a privacy-conscious user monitoring third-party trackers, WebLens provides actionable audits in seconds—without sending a single byte of your browsing data to external cloud servers.
◆ INSTANT SAFARI EXTENSION
Audit any webpage live while you browse with a single tap in Safari's toolbar:
• Real-time composite health score (0–100)
• Total transfer payload, request count, and script volume
• External third-party tracker & analytics count
• Instant category breakdown & top observations
• One-tap deep dive into comprehensive reports
◆ 6-PILLAR DIAGNOSTIC AUDIT ENGINE
Every URL is scored across six foundational categories:
1. PERFORMANCE: First Contentful Paint (FCP), Largest Contentful Paint (LCP), Interaction to Next Paint (INP), Cumulative Layout Shift (CLS), Time to First Byte (TTFB), and Total Blocking Time (TBT).
2. PRIVACY & TRACKING: Automatically identifies and categorizes third-party domains into advertising, analytics, social widgets, CDNs, fonts, and payment gateways.
3. RESOURCES & NETWORK: Inspects image payloads, oversized assets, JavaScript bundle weight, CSS overhead, and HTTP request efficiency.
4. SECURITY: Evaluates HTTPS enforcement, mixed-content vulnerabilities, strict transport security (HSTS), and cookie security flags.
5. ACCESSIBILITY: Audits touch target sizes, color contrast ratios, document language attributes, viewport zooming capability, heading hierarchies, and missing image alt descriptions.
6. CONTENT & SEO: Validates title tags, meta descriptions, OpenGraph social cards, canonical URLs, and structured metadata.
◆ CROSS-DEVICE SIMULATION (MOBILE & DESKTOP)
Toggle between Mobile (simulated 4G latency and mobile viewport) and Desktop modes to see how your site behaves across different network conditions and device form factors.
◆ ACTIONABLE OPPORTUNITIES & DIAGNOSTICS
WebLens doesn't just give you a number—it tells you exactly how to fix issues:
• Estimated time savings for modern image formats (WebP/AVIF)
• Critical render-blocking resource identification
• Text compression (Gzip/Brotli) recommendations
• Passive event listeners and cache lifetime diagnostics
◆ 100% ON-DEVICE & ZERO TRACKING GUARANTEE
Your privacy is sacred:
• Zero remote analytics or third-party telemetry
• Zero account creation or login required
• All network timings and DOM analyses execute strictly locally on your Apple device
• Reports stay private on your device and are never uploaded to the cloud
Engineered with SwiftUI and modern Safari Web Extension APIs for iOS, iPadOS, and macOS.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Shubham Sharma, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Shubham Sharma
- Size
- 1.6 MB
- Category
- Developer Tools
- Compatibility
Requires macOS 13.0 or later.
- Mac
Requires macOS 13.0 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 Cogify