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Lighthouse CLI audits multiple URLs and avoids report filename collisions

Introduced 2026-10-27 · score 0.98

HOW TO USE IT

When auditing multiple pages in one CLI run, pass their URLs as arguments or provide a newline-delimited URL file; Lighthouse audits them sequentially. Use `--fail-fast` to stop after a failed run.

lighthouse <url-1> <url-2>
lighthouse --url-file=<path-to-newline-delimited-urls> --output-path=<existing-reports-directory>

WHY THIS HELPS

Audit several pages in one CLI run and keep their default report files distinct.

REQUIREMENTS AND LIMITATIONS

  • Version: 13.6.0
  • Non-interactive: On the first CLI run, Lighthouse prompts for permission to anonymously report runtime exceptions.
  • Non-interactive: `--output json` sends JSON output to stdout by default.
  • --url-file: Path to a file containing newline-delimited URLs.
  • --fail-fast: Stop auditing remaining URLs when a run fails.
  • --output-path: Output file or directory; the directory must already exist.
  • Prerequisite: Node 22 (LTS) or later.
  • Prerequisite: Install the CLI with `npm install -g lighthouse` or `yarn global add lighthouse`.
  • URLs are audited sequentially.

FIRST-PARTY EVIDENCE

Check the installed version and the source before using it. Entry JSON

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