1. Google PageSpeed Insights: This tool provides detailed analysis of the website by measuring its load time on both desktop and mobile devices.

2. Pingdom Website Speed Test: Pingdom analyses all parts of a web page, for example, file sizes, load times, HTML, CSS, JavaScript files and images to help identify what about a web page is fast, slow, too big, etc.

3. GTmetrix: It gives a detailed report on how a site's performing, possible issues and how you can resolve them.

4. WebPageTest: This tool allows you to do performance tests from multiple locations around the world using real browsers (IE and Chrome) and at real consumer connection speeds.

5. DareBoost: It is an online tool to test, analyze and monitor your website speed and quality.

6. Load Impact: Load Impact provides website speed analysis along with load testing and website performance monitoring.

7. YSlow: The plug-in examines web pages and suggests ways to improve their performance.

There are several tools available to test your website speed, both free and paid. Here are some of the best options:

Free Website Speed Testing Tools

1. Google PageSpeed Insights (pagespeed.web.dev)
2. Provides performance scores for mobile and desktop.

3. Offers actionable recommendations.

4. GTmetrix (gtmetrix.com)

5. Uses Google Lighthouse and Web Vitals.

6. Provides detailed reports with waterfall charts.

7. WebPageTest (webpagetest.org)

8. Allows testing from multiple locations and devices.

9. Offers advanced metrics like Time to First Byte (TTFB), render times, and more.

10. Pingdom Website Speed Test (tools.pingdom.com)

11. Tests load time from different global locations.

12. Provides performance grades and suggestions.

13. Lighthouse (Chrome DevTools)

14. Built into Google Chrome (Press F12 → Lighthouse tab).

15. Measures performance, accessibility, SEO, and best practices.

16. Uptrends (uptrends.com/tools/website-speed-test)

17. Tests from multiple global locations.
18. Checks DNS, server response, and content load times.

Paid & Advanced Tools

• SpeedCurve (speedcurve.com) – Continuous monitoring.
• New Relic (newrelic.com) – Real-user monitoring (RUM).
• Akamai mPulse (akamai.com) – Advanced analytics.

What to Look for in a Speed Test?

• Core Web Vitals (Largest Contentful Paint, First Input Delay, Cumulative Layout Shift).
• Server response time (TTFB).
• Render-blocking resources (CSS/JS optimizations).
• Image & asset optimization (compression, lazy loading).

Would you like recommendations based on your specific website type (e.g., WordPress, eCommerce, etc.)?