Free Website Speed Test
Updated July 2026
Test website loading speed and get Core Web Vitals metrics. Check LCP, CLS, FID, TTFB, and page size — free online website speed analyser.
Diagnosing web and network issues quickly is critical for site owners, developers, and SEO professionals. The Website Speed Test delivers actionable data in seconds.
Test website loading speed and get Core Web Vitals metrics. Check LCP, CLS, FID, TTFB, and page size — free online website speed analyser. Results are immediate — no waiting, no loading screens, no account required.
How to use the Website Speed Test
Open the tool, enter your input, and get your result instantly. The interface is designed to be self-explanatory — no tutorial or manual needed. Where options exist, they are clearly labelled with sensible defaults. Your result can be copied to the clipboard or downloaded with a single click.
Tips for the best results
- Results reflect live server data — refresh to get the latest reading.
- Compare results across multiple URLs to identify inconsistencies quickly.
Who uses the Website Speed Test?
- Website owners benchmarking their site speed against competitors for competitive analysis.
- Web developers identifying performance regressions after code changes or plugin additions.
- SEO specialists auditing Core Web Vitals to address Google ranking factor requirements.
Common uses and search terms
The Website Speed Test is frequently used for: website speed, page speed, load time, performance. Whether you need a quick result or are working through a longer project, the tool handles all common variations without any configuration.
Why use Allio Tools's Website Speed Test?
Everything runs locally in your browser. No data is sent to a server, logged, or stored anywhere. The tool is completely free with no usage limits, no premium tiers, and no account required. Available in 11 languages and optimised for all screen sizes, the Website Speed Test works on desktop, tablet, and mobile with no app download needed.
See also:IP Address Lookup · DNS Lookup · HTTP Status Codes
How the Website Speed Test works
Enter the full URL of the website you want to test (include https://).
Click Analyse to run a speed test from our servers.
Review the results: TTFB, fully loaded time, page size, number of requests, and Core Web Vitals.
Check the recommendations section for specific improvements to prioritise.
Tips & tricks
- Run the Website Speed Test before and after making server configuration changes to confirm the update took effect.
- Use the browser's Developer Tools alongside the Website Speed Test for a complete picture of network and performance behaviour.
- Results reflect live data — re-run the check after a recent change to verify propagation across DNS caches.
Frequently Asked Questions
What is a good website load time?
Under 2.5 seconds for LCP (Largest Contentful Paint) is Google's "Good" threshold. Under 1 second is excellent. Pages that take over 4 seconds lose significant users — 53% of mobile users abandon pages taking over 3 seconds.
What is TTFB (Time to First Byte)?
TTFB measures how long from request to receiving the first byte of the server response. Under 200ms is good; under 800ms is acceptable. High TTFB indicates slow server processing, database queries, or geographic distance from the user.
What are Core Web Vitals?
Google's Core Web Vitals are three user experience metrics: LCP (Largest Contentful Paint — loading), INP (Interaction to Next Paint — interactivity), and CLS (Cumulative Layout Shift — visual stability). Good scores positively affect Google search rankings.
Why do speed test results differ from Google PageSpeed Insights?
PSI runs in a simulated Lighthouse environment with throttled connection. This tool measures real server response from our infrastructure. Results vary by test location, time of day, and server load. Use PSI for standardised benchmarking.
How can I improve my website's speed?
Top improvements: use a CDN, enable server-side compression (gzip/brotli), optimize and lazy-load images, minify CSS/JS, reduce server response time (upgrade hosting), eliminate render-blocking resources, and leverage browser caching.
Is the Website Speed Test free to use?
Yes, the Website Speed Test on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.
How does the Website Speed Test work?
Test website loading speed and get Core Web Vitals metrics. Check LCP, CLS, FID, TTFB, and page size — free online website speed analyser. Your input is processed on Cloudflare's edge infrastructure — it is not stored, logged, or shared with any third party.
Do I need to install anything to use the Website Speed Test?
No installation needed. The Website Speed Test runs entirely in your web browser on any device — desktop, tablet, or mobile.
Is my data safe when using the Website Speed Test?
Yes. Your input is processed on Cloudflare's globally distributed edge network. Data is used only to generate your result and is never stored, logged, or shared with any third party.
Does the Website Speed Test work offline?
No — the Website Speed Test processes your input on Cloudflare's edge servers and requires an internet connection.
How current is the data returned by the Website Speed Test?
The Website Speed Test fetches live data in real time each time you run it. Results reflect the current state of the server or domain at the moment of the request.
Why does the Website Speed Test sometimes return different results than other tools?
Results depend on the real-time state of the target server and DNS propagation, which can vary by geographic region and caching TTL. If you see inconsistencies, wait a few minutes and re-test — DNS changes can take up to 48 hours to propagate fully worldwide.
Does the Website Speed Test work on all browsers?
Yes. The Website Speed Test is built with standard browser APIs and works on all modern browsers including Chrome, Firefox, Safari, and Edge — on both desktop and mobile. No plugins, extensions, or third-party software are required.
How do I save or export my results from the Website Speed Test?
Select and copy the result text to paste into any document or app. For image tools, a Download button saves the file directly to your device. Your browser's built-in screenshot function also captures results quickly. No account or login is required.
Works with ChatGPT, Claude, Cursor, GitHub Copilot, VS Code, Poe and more — 106+ tools, zero data collection.