Performance

Fast by default

A tiny runtime, CSS and scripts that load only on pages that use them, real responsive images and clean, accessible markup — whoever built the page.

Uncoder · Performance

Uncoder performance settings

With your AI

Or just ask

Everything here is something your AI can do for you through Uncoder’s MCP server.

Ask your AI

“Audit the home page for performance and accessibility and fix what you can.”

Ask your AI

“Make sure every image has alt text and the hero image loads first.”

Performance settings

Speed

Only what the page uses

Per-page CSS, scripts that load only where widgets need them, lazy media, local fonts and no jQuery — so pages stay light as sites grow.

  • ~2 KB runtime
  • Per-page CSS and scripts
  • Local Google Fonts
The page check

Accessibility

Accessible out of the box

Keyboard-friendly widgets, visible focus, real buttons and links, reduced-motion support and a page check that catches what is left.

  • WCAG-minded widgets
  • Reduced motion respected
  • Page check with fixes
Clean markup from the editor

SEO

Markup search engines like

One element per widget, semantic HTML, structured data for FAQs and breadcrumbs, and SEO titles and descriptions that work with your SEO plugin.

  • Lean, semantic HTML
  • FAQ and breadcrumb structured data
  • Works with Yoast, Rank Math, SEOPress

Also included

More in Performance

Lazy everything

Images, video, maps and embeds.

Responsive images

Real srcset and sizes.

Local fonts

No calls to Google.

Clean markup

One element per widget.

Accessible

Keyboard and screen reader ready.

SEO

Structured data and meta.

Free · GPL · No account

Your next site is one prompt away

Install Uncoder, connect your AI and describe what you want. Every page it builds stays yours to edit.