# csswizardry/ct Let’s take a look inside your … Repository: https://github.com/csswizardry/ct Canonical: https://ross.abutalabs.com/products/ct Homepage: https://csswizardry.com/ct/ Language: CSS License Family: other Last push: 2026-08-26T18:03:46+00:00 ## Health v2 (maintenance only) Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00) - activity 99, release rhythm 35, longevity 100 - inputs: {"age_days": 2065, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0} - flags: no_releases, no_license - formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) ## Adoption (not part of the score) Stars 1887, forks 50 (observed 2026-08-28T04:05:49.174689+00:00) ## What it is ct.css is a small diagnostic CSS stylesheet that visually exposes performance problems in a page's , 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 - artifact type: library - maturity: active - function: developer-tools, monitoring, css-framework - domain: web-development, frontend, performance, developer-tools - platform: browser - tags: diagnostic-css, render-blocking, head-audit, bookmarklet, performance-debugging, web-server ## Member repositories - csswizardry/ct (main) score 77 ## Provenance - Observed fields: from GitHub, fetched 2026-08-28T04:05:49.174689+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 2026-08-30T03:13:32.410957+00:00, confidence not recorded. - readme: https://github.com/csswizardry/ct (fetched 2026-08-28T04:05:49.174689+00:00, sha 67e142987226) - homepage: https://csswizardry.com/ct/ (fetched 2026-08-29T10:52:27.459254+00:00, sha d23a93e259e9) - Data as of 2026-08-30T08:39:29.467469+00:00.