Site Performance Checker - OWSH Speed Audit
v1.0.0 Updated Feb 19, 2026 30.7KiB
Description
Instant performance audit for any webpage. Check Core Web Vitals, page weight, image optimization, and resource loading in seconds.
OWSH Speed Audit is a free, lightweight performance tool that helps you understand how fast your site loads and where the biggest slowdowns are, without leaving your browser.
INSTANT PERFORMANCE SCORE | Open the extension on any webpage to instantly see:
- Overall performance score (0-100) with letter grade
- Core Web Vitals: LCP, CLS, FCP, TTFB, and TBT at a glance
- Top issues prioritized by impact
- Page stats: requests, page weight, load time, DOM nodes
HIGHLIGHT ISSUES ON PAGE | Spot problems directly in context:
- One-click image highlighting shows problem images right on the page
- Oversized images, legacy formats, and missing lazy loading flagged visually
- Jump directly to problem elements
DETAILED BREAKDOWN | Deep dive into specific areas:
- Resources: Largest files, render-blocking scripts, type breakdown
- Images: Oversized images, legacy formats (JPEG/PNG), missing lazy loading, missing dimensions
- Loading: Load timeline visualization, resource waterfall, font loading issues
- Cache & Compression: Missing cache headers, uncompressed resources
ACTIONABLE FIX TIPS | Know what to do next:
- Every issue includes a plain-language explanation of the problem
- Beginner-friendly fix suggestions you can share with your developer
- Impact labels so you know what to prioritize first
FULL REPORT IN ONE CLICK
- Jump to the full audit experience at audit.owshsystems.com for a deeper breakdown with mobile vs desktop comparison, grouped insights, and detailed fix guides.
PRIVACY FIRST
- All analysis runs locally in your browser.
- No tracking. No data collection. No accounts.
Category: Web Development
Language: English
Support email: hello@owshsystems.com
Homepage URL: https://audit.owshsystems.com/performance
Privacy Policy URL: https://audit.owshsystems.com/privacy/performance-extension
Reviews
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Permissions (2)
Permissions
activeTabℹ Can access the current tab when you click the extension scriptingℹ Can inject scripts into web pages
Details
| Version | 1.0.0 |
| Updated | Feb 19, 2026 |
| Size | 30.7KiB |
| First Seen | Mar 26, 2026 |
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