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GTmetrix Performance Tester

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

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from $0.01 / 1,000 results

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The Howlers

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GTmetrix website speed tester Core Web Vitals PageSpeed API through CLI

The Apify CLI is the official tool that allows you to use GTmetrix Performance Tester locally, providing convenience functions and automatic retries on errors.

Install Apify CLI

Using installation script (macOS/Linux):

$curl -fsSL https://apify.com/install-cli.sh | bash

Using installation script (Windows):

$irm https://apify.com/install-cli.ps1 | iex

Using Homebrew:

$brew install apify-cli

Using npm:

$npm install -g apify-cli

Other API clients include:

GTmetrix Performance Tester API in Python

GTmetrix Performance Tester API in JavaScript

GTmetrix Performance Tester OpenAPI definition

GTmetrix Performance Tester API

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