# paulirish/pwmetrics

Progressive web metrics at your fingertipz

Repository: https://github.com/paulirish/pwmetrics
Canonical: https://ross.abutalabs.com/products/pwmetrics
Language: TypeScript
License: Apache-2.0
License Family: permissive
Topics: metrics, performance, webperf, lighthouse
Last push: 2022-12-09T08:05:31+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3661, "days_push": 1363, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1239, forks 69 (observed 2026-08-28T04:04:05.968991+00:00)

## What it is
PWMetrics is a CLI tool and Node.js library that gathers progressive web performance metrics (like First Contentful Paint and Largest Contentful Paint) for a URL via Lighthouse. It supports multiple runs with median reporting, JSON output, CI assertions against expectations, and uploading traces to Google Drive or Sheets.

## Use cases
- measure page load performance metrics for a url
- run lighthouse performance audits from the command line
- assert performance budgets in CI pipelines
- export web vitals metrics as
- track first contentful paint and largest contentful paint over time

## When to choose
- you need a quick one-off CLI to collect Lighthouse timing metrics
- you want a Node library to programmatically gather performance metrics

## When to avoid
- starting a new project - it is deprecated in favor of Lighthouse CI
- you need ongoing page speed monitoring or maintained tooling
- you need GitHub Actions integration for Lighthouse

## Facets
- artifact type: cli-tool
- maturity: abandoned
- function: benchmarking, monitoring, developer-tools, cli
- domain: web-development, performance, developer-tools
- platform: cli, cross-platform
- tags: lighthouse, web-performance, page-speed, metrics, deprecated, command-line, nodejs

## Member repositories
- paulirish/pwmetrics (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:05.968991+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 2026-08-30T05:09:58.808130+00:00, confidence not recorded.
  - readme: https://github.com/paulirish/pwmetrics (fetched 2026-08-28T04:04:05.968991+00:00, sha eb3f86e7858e)
  - registry_npm: https://registry.npmjs.org/pwmetrics (fetched 2026-08-29T12:20:37.736062+00:00, sha 69fc8e1dda65)
- Data as of 2026-08-30T08:39:29.467469+00:00.