rviscomi/capo.js

Health v2 · maintenance only

Adoption not part of the score

1095 stars · 22 forks observed · 2026-09-27

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

capo.js is a tool that analyzes the ordering of elements in an HTML document's <head> to identify elements that may hurt perceived page performance. It ships as a Chrome/Firefox browser extension, a WordPress plugin, and an npm library with a programmatic API.

Use cases

• audit the order of elements in my page's <head> for performance
• find out which head elements are slowing down page rendering
• analyze head element ordering programmatically in Node.js
• automatically sort the <head> of a WordPress site
• diagnose why my page feels slow to load
• check if critical CSS and scripts are loaded early enough

When to choose

• you want to optimize perceived page load performance via head element ordering
• you need a quick browser extension to inspect any page's head
• you want a programmatic API to lint head ordering in CI or tooling

When to avoid

• you need general-purpose performance profiling beyond head ordering
• your performance issues are unrelated to document head structure

Facets

plugin · maturity active

developer-tools analytics parser web-development frontend performance developer-tools browser-extension head-ordering page-performance browser-extension wordpress-plugin web-vitals nodejs javascript

Member repositories

For agents

markdown · JSON · MCP: product_card(name="rviscomi/capo.js")