csswizardry/ct
Let’s take a look inside your <head>… observed · 2026-08-28
Health v2 · maintenance only
77/100
- Activity 99
- Release rhythm 35
- Longevity 100
Flags: no_releases no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 2065
- days_rel: n/a
- days_push: 7
- n_releases_24m: 0
Adoption not part of the score
1887 stars · 50 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
ct.css is a small diagnostic CSS stylesheet that visually exposes performance problems in a page's <head>, such as render-blocking scripts and stylesheets. It is injected via a link tag, style tag, or Chrome DevTools snippet and color-codes problematic head elements.
Use cases
- audit render-blocking resources in my page head
- find blocking scripts and stylesheets slowing page load
- debug head tag ordering for performance
- visualize which third-party files block rendering
- check if my head is well-formed for critical rendering path
When to choose
- you want a zero-install, paste-in diagnostic for head-related render-blocking issues
- you need a quick visual audit during front-end performance work
When to avoid
- you need full performance profiling or metrics rather than head-tag diagnostics
- you rely on dynamically injected scripts, which can be falsely flagged
- you need a maintained tool with a license and automated analysis
Facets
library · maturity active
developer-tools monitoring css-framework web-development frontend performance developer-tools browser diagnostic-css render-blocking head-audit bookmarklet performance-debugging web-server
2 sources
- readme: https://github.com/csswizardry/ct · fetched 2026-08-28 · 67e142987226
- homepage: https://csswizardry.com/ct/ · fetched 2026-08-29 · d23a93e259e9
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| csswizardry/ct | main | 77 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem