# Web best practices (Lighthouse)

> Runs a Lighthouse-style best-practices audit: security headers, CSP, deprecated APIs, console errors and valid markup.

Canonical: https://mikereams.com/ai/frontend-best-practices

Skill · Curated · Frontend · updated 2026-08-20. Part of the [AI Library](https://mikereams.com/ai).

What you get: A checked-off audit list for a build, with the failures named.

- I run a condensed checklist version as the last gate before an app is called done.

Source: [addyosmani/web-quality-skills](https://github.com/addyosmani/web-quality-skills/tree/main/skills/best-practices) by Addy Osmani (MIT). Not hosted here.

Reviewed 2026-08-20.

Tags: lighthouse, security headers, CSP, best practices