lh-cmd

Run Lighthouse (perf only) and Layout Shift tests on your favorite urls listed in Google Sheets and save them locally via CLI.

Installation

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Install Lighthouse and layout-shift-gif globally

npm install -g lighthouse

npm install -g layout-shift-gif

npm install this project's dependencies

Setup

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GOOGLE_EMAIL="" - Email associated with Sheets API

GOOGLE_PRIVATE_KEY="" - Private key associated with Sheets API

SHEET_ID="" - Sheet ID found in Sheet URL

SHEET_NAME="" - Name of worksheet containing list of URLs (Put 10 top urls in Column A starting at the first row)

Usage

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npm start and select url from list or enter your own url.

Optional: If you enter your own url, enter a filename for your reports.

When finished, key Lighthouse metrics will be printed on the command line. The Lighthouse report will automatically open in your default browser.

2 files will be saved based on the filename you provided or present in the page list.

[filename]-MM-DD-YYYY-HH-mm-ss.report.json
[filename]-MM-DD-YYYY-HH-mm-ss.report.html

Choose whether to run layout-shift-gif

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If yes, CLS gif generator will run and save 2 files.

temp-screenshot.png
[filename]-MM-DD-YYYY-HH-mm-ss.gif