Pricing

from $0.01 / 1,000 results

GTmetrix Performance Tester

Automated website performance testing using GTmetrix. Get Core Web Vitals, PageSpeed scores, waterfall analysis & optimization recommendations. Batch test multiple URLs.

Pricing

from $0.01 / 1,000 results

Rating

0.0

(0)

Developer

The Howlers

Actor stats

Bookmarked

Total users

Monthly active users

20 days ago

Last modified

Before You Start

This actor requires your own API credentials to fetch real data.

Where to get your key: Your GTmetrix API key. Get a free key at https://gtmetrix.com/api/

You can test with Demo Mode first (free, no key needed) to see the output format before committing.

Quick Start

Test with Demo Mode (free, no API key needed)

{
  "demoMode": true,
  "urls": [
    "https://example.com"
  ]
}

Run with real data

{
  "demoMode": false,
  "urls": [
    "https://example.com"
  ],
  "apiKey": "YOUR_API_KEY_HERE",
  "location": "1",
  "browser": "3",
  "adBlock": false,
  "waitForFullyLoaded": true
}

Input Parameters

Parameter	Type	Default	Required	Description
`demoMode`	boolean	`false`	No	Run with sample data without making API calls. Great for testing the actor.
`urls`	array	-	No	List of website URLs to test for performance.
`apiKey`	string	-	Yes*	Your GTmetrix API key. Get a free key at https://gtmetrix.com/api/
`apiEmail`	string	-	No	Email address associated with your GTmetrix account.
`location`	string	`"1"`	No	Server location for the test.
`browser`	string	`"3"`	No	Browser to use for testing.
`adBlock`	boolean	`false`	No	Block ads during the test.
`waitForFullyLoaded`	boolean	`true`	No	Wait until the page is fully loaded before measuring.
`webhookUrl`	string	-	No	URL to POST results when scraping completes (Zapier, Make, n8n, custom endpoint)

*Required when Demo Mode is off.

Pricing

This actor uses pay-per-event billing:

Event	Description	Price
Test Completed	Each GTmetrix performance test completed	$0.08

Demo mode is free -- no charges for sample data.

Troubleshooting

"API key is required"

You have Demo Mode turned off but didn't provide an API key. Either:

Turn Demo Mode on to test with sample data
Add your API key in the input

"API error 403" or "Unauthorized"

Your API key is invalid, expired, or doesn't have access to this specific API endpoint. Double-check your key and account permissions.

"API error 429" or "Rate limit"

Too many requests. Wait a minute and try again, or reduce the number of items per run.

No results or empty dataset

Check the run log for error messages. Common causes:

Invalid input format (check the examples above)
API key without proper permissions
The target data doesn't exist or is too small to track

How do I test without an API key?

Enable Demo Mode in the input. This returns realistic sample data so you can verify the output format works for your workflow.

Built by John Rippy | Actor Arsenal

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