sitespeedio/coach
Clear Eyes. Full Hearts. Can’t Lose. observed · 2026-08-28
Health v2 · maintenance only
10/100
- Activity 0
- Release rhythm 8
- Longevity 100
Flags: archived
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: 3901
- days_rel: n/a
- days_push: 839
- n_releases_24m: 0
Adoption not part of the score
1196 stars · 62 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
The Coach is a web performance tool that analyzes pages and gives advice on performance problems, acting as a modern successor to YSlow. Its core functionality has moved to coach-core, and it is most easily used via sitespeed.io.
Use cases
- find performance problems on my web page
- audit page speed like YSlow
- get performance advice for a website
- check if my page follows performance best practices
- integrate web performance checks into sitespeed.io runs
When to choose
- you want YSlow-style performance advice for web pages
- you already use sitespeed.io and want built-in coaching
- you need programmatic page performance analysis in JavaScript
When to avoid
- you need actively developed new features (core moved to coach-core)
- you need full RUM or lab performance metrics rather than rule-based advice
- you need Lighthouse-style audits with modern Core Web Vitals scoring
Facets
library · maturity maintenance
monitoring benchmarking developer-tools web-development performance developer-tools cli web-performance yslow-successor page-speed advice sitespeedio nodejs web-server
1 source
- readme: https://github.com/sitespeedio/coach · fetched 2026-08-28 · c935374bc48b
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| sitespeedio/coach | main | 10 |
For agents
markdown · JSON · MCP: product_card(name="sitespeedio/coach")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem