# rviscomi/capo.js

Get your <head> in order

Repository: https://github.com/rviscomi/capo.js
Canonical: https://ross.abutalabs.com/products/capojs
Homepage: https://rviscomi.github.io/capo.js/
Language: JavaScript
License: Apache-2.0
License Family: permissive
Last push: 2026-08-24T00:21:55+00:00

## Health v2 (maintenance only)
Score: 96/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 99, longevity 85
- inputs: {"age_days": 1203, "days_push": 10, "days_rel": 10, "gap_med": 19, "n_releases_24m": 6}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1084, forks 22 (observed 2026-08-28T04:03:31.508497+00:00)

## What it is
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
- artifact type: plugin
- maturity: active
- function: developer-tools, analytics, parser
- domain: web-development, frontend, performance, developer-tools
- platform: browser-extension
- tags: head-ordering, page-performance, browser-extension, wordpress-plugin, web-vitals, nodejs, javascript

## Member repositories
- rviscomi/capo.js (main) score 96

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:31.508497+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:50:09.506820+00:00, confidence not recorded.
  - readme: https://github.com/rviscomi/capo.js (fetched 2026-08-28T04:03:31.508497+00:00, sha 125d2917935b)
  - homepage: https://rviscomi.github.io/capo.js/ (fetched 2026-08-29T12:52:56.413670+00:00, sha c31dd033bd4f)
- Data as of 2026-08-30T08:39:29.467469+00:00.
