Saturday, 5 September 2026Directory: The tool for the task.70 tools · 36 official sources
70 tools in 10 tasks. Each says what it is for, what it costs, and whether it is the official source.
find.doThe tool for the task.
◆ marks the regulator, registry or test maker. The steps that use these tools are on for.do.
Get found in search · Website · Global

PageSpeed Insights◆

Lab and field performance data for a URL, with Core Web Vitals.

Price
free
Official source
pagespeed.web.dev
Reviewed
5 Sept 2026
Open pagespeed.web.dev ↗

What it is for

Finding the largest-contentful-paint element and layout shifts before launch; the field data is what Google actually uses.

performance · Core Web Vitals

Used in these playbooks