The complete checkup
for your website.

Run a free website speed test and see, in a single report, how your site performs on Google and in AI tools.

Site version Desktop Mobile

Three pillars checked in a single test

Performance

Core Web Vitals, LCP, CLS, page load speed

Technical SEO

JSON-LD, meta tags, indexable content, sitemap

AI visibility

Structured data, readability for LLMs and generative search

How it works

From URL to full report in about a minute

No complicated setup. Paste your URL and the analysis starts right away.

Paste your website URL

Enter the address you want to test. Works on any public website, no sign-up needed.

Get the complete report

Performance, technical SEO and AI visibility, with what to fix first.

Track your progress

Create an account to keep your history and see if your site is getting better.

testedeperformance.com.br

Performance

Desktop · testedeperformance.com.br

1.8sLCP

80msINP

0.12CLS

Opportunities

Eliminate render-blocking resources-0.9s

Image compression-0.4s

Enable browser caching-0.2s

Features

Everything your website needs
to grow in search.

On-demand analysis

Paste a URL and get a performance, SEO and AI report in about a minute, anytime.

History and trends

See how performance has changed over time and spot when something got worse.

Technical SEO and JSON-LD

Check meta tags, structured data, sitemap and indexable content. See what search engines are reading.

Multiple websites

Track several websites, each with the pages that matter, in one dashboard.

Automatic monitoring

With a subscription, your pages are tested automatically and you follow the trends in charts.

AI visibility

See if your content is ready to be read and cited by ChatGPT, Gemini and other AI assistants.

Learn how to improve your website

See all guides →

Agencies

Tools to monitor multiple websites at once

For agencies and freelancers: how to track uptime, speed, SEO and AI visibility for all your client sites in one place, and which tools to use for each.

4 min read Guides

Best free tools to test your website speed

PageSpeed Insights, GTmetrix, WebPageTest, Pingdom, Lighthouse and Teste de Performance compared: strengths, free tiers and which to pick.

5 min read Guides

How to know when your website is slow or down

Why you are usually the last to know your site went down, the types of monitoring available, what to monitor and what to do when an alert arrives.

4 min read

Frequently asked questions

Is the website speed test free?

Yes. You can test any public page without signing up, up to three tests a day. Create a free account to keep your test history.

What does the test check?

Loading speed (Core Web Vitals such as LCP and CLS), the technical SEO points Google looks at, and whether your site is ready to be read by AI assistants like ChatGPT.

How long does it take?

Usually about a minute. Very heavy pages can take a little longer.

Can I test the mobile version?

Yes. Choose Mobile before you run the test and the report shows how your site performs on a phone.