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- Performance and design

# Performance and design: free website tools

**5 free performance and design tools for web agencies and site owners improving speed, brand consistency and accessibility: CoreWebVitalsPulse, BrandDesignSystemAudit, ShopifySpeedSchemaPulse, ShopifyStorefrontXray, WooSpeedAudit. Each runs a live, read-only scan with the full result free; fix packs and monitoring are optional.**

5 free, read-only checks for web agencies and site owners improving speed, brand consistency and accessibility. Run any of them on your own site; each shows a score, every check it ran and what to fix.

## [CoreWebVitalsPulse](/corewebvitalspulse)

A free, read-only check of the page-level causes of poor Core Web Vitals: HTML weight, render-blocking scripts, third-party script load, font loading, image sizing that causes layout shift, lazy loading and resource hints.

Free scan · fix pack $4.99, monitor from $9/mo · [try the demo](/corewebvitalspulse#sc-form)

## [BrandDesignSystemAudit](/branddesignsystemaudit)

Enter a page. We read its HTML and stylesheets and measure the design system: CSS custom properties (tokens), how many distinct colors and font families are in play, font-weight sprawl, dark-mode support, favicon, app icons and SVG logo, and text/background pairs that fail WCAG contrast. The pack is a clean CSS token file built from your most-used colors and fonts.

Free scan · fix pack $4.99, monitor from $19/mo · [try the demo](/branddesignsystemaudit#sc-form)

## [ShopifySpeedSchemaPulse](/shopifyspeedschemapulse)

A free, read-only check of one store product page: page weight, render-blocking and third-party scripts, image loading, and the Product structured data Google needs for price, availability and review rich results.

Free scan · fix pack $4.99, monitor from $9/mo · [try the demo](/shopifyspeedschemapulse#sc-form)

## [ShopifyStorefrontXray](/shopifystorefrontxray)

Enter any DTC store URL. We read the public storefront: platform and theme, product count, min, median and max price, variants, and the email/SMS, reviews, loyalty, subscription, support, upsell, pixel and checkout apps it loads. The result is a storefront dossier.

Free scan · fix pack $4.99, monitor from $9/mo · [try the demo](/shopifystorefrontxray#sc-form)

## [WooSpeedAudit](/woospeedaudit)

Enter any page of your WooCommerce store (home, category or product). We read what the page actually loads: the cart-fragments AJAX call on every page, how many plugins inject scripts and styles, render-blocking scripts in the head, jQuery Migrate, unminified plugin files, page-cache and compression headers, and lazy images. The pack has a ready functions.php snippet and a per-plugin asset list.

Free scan · fix pack $4.99, monitor from $9/mo · [try the demo](/woospeedaudit#sc-form)

## Other tool groups

[AI search and AI-agent readiness](/hub/tools/ai-search-and-agents) [Technical SEO](/hub/tools/technical-seo) [Email deliverability and domains](/hub/tools/email-and-domains) [Security, privacy and trust](/hub/tools/security-privacy-and-trust) [Conversion, signup and pricing](/hub/tools/conversion-and-pricing) [Competitive and sales intelligence](/hub/tools/competitive-intelligence) [Agencies and local business sites](/hub/tools/agencies-and-local-business) [Newsletters and podcasts](/hub/tools/newsletters-and-podcasts)

## Frequently asked questions

### Are these performance and design tools free?

Yes. Every scan and its full result are free. An optional fix pack (copy-paste fixes for the failing checks) and monitor plans that re-check on a schedule are paid.

### Do the tools change anything on my site?

No. They are read-only: they request public pages, files and DNS records the way a browser or mail server would, and never submit forms or log in.

### Which performance and design tool should I start with?

Start with CoreWebVitalsPulse; each result page links to related checks.