WEB PERFORMANCE LAB

PageSpeed
Batch Checker

Measure up to 10 URLs on Mobile and Desktop. Compare averages, CrUX, and improvement suggestions in one place.

See how it works ↓

URLs and measurement settings

One URL per line, up to 10.

URLs to measure

1/10 valid

DeviceRuns per URLConcurrent runs

6 API calls1 URL × 2 devices × 3 runs

HOW TO USE

How to use and notes

Enter the URLs to measure. No API key is required.
Set the URLs and options, then review the planned API calls.
Compare the results and export per-run CSV, average CSV, or JSON when needed.

Data storage
URLs and settings are saved in your browser. Results are saved on this device only when you choose to save them. Inputs and results are not sent to Toy App Lab's server, and no API key is used.

About measurements
CrUX data may not be available. Lighthouse scores can vary by environment, and the public API has usage limits. Measurements may fail during busy periods.

Not supported
Agentic Browsing is not provided by the API and is not included. This tool is not an official Google service.