Free Website Speed Test
Updated September 2026
Test website response time, page size, compression, security headers, and cache headers from our servers — free online website speed analyser.
Verified Capabilities
Measures server response time, total page size, and whether gzip/brotli compression is enabled.
Checks for HSTS, CSP, X-Frame-Options, and other security headers, plus Cache-Control/ETag/Last-Modified.
Full results can be downloaded as a formatted PDF report or a CSV/Excel file.
This tool does not measure Core Web Vitals — it links out to Google PageSpeed Insights for those, since they require real browser rendering.
The Website Speed Test handles work a browser alone can't do instantly, using Cloudflare's globally distributed edge network to process your request in seconds.
Test website response time, page size, compression, security headers, and cache headers from our servers — free online website speed analyser. Results are immediate — no waiting, no loading screens, no account required.
Who uses the Website Speed Test?
- Website owners doing a quick server response and header check without a full browser-based audit.
- Web developers verifying security headers and cache headers are set correctly after a deployment.
- SEO specialists getting a fast server/compression check before doing a full Core Web Vitals audit on PageSpeed Insights.
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?
Your input is sent securely to Cloudflare's edge network for processing — it is never stored, logged, or shared with any third party, and is discarded immediately after your result is returned. Free use is capped at 3 per day, since this tool relies on paid backend infrastructure to run — Pro removes the daily limit. No account is required for the free tier. 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 the test from our servers.
Review response time, page size, compression, security headers, cache headers, and a static HTML resource count (scripts/stylesheets/images).
Download the results as a PDF or CSV, or follow the link to Google PageSpeed Insights for Core Web Vitals (LCP, CLS, INP) — this tool doesn't measure those.
Tips & tricks
- This tool checks server-side response metrics and headers, not real-user page load — pair it with Google PageSpeed Insights (linked in the results) for Core Web Vitals.
- The resource count (scripts/stylesheets/images) comes from a static scan of the HTML, not a live network waterfall, so it won't catch resources loaded dynamically by JavaScript.
- Missing security headers (HSTS, CSP, X-Frame-Options, etc.) are flagged individually — these matter for security posture, not raw speed.
- Download the PDF or CSV report to share results with a team or track changes over time after a deployment.
Frequently Asked Questions
Does this tool measure Core Web Vitals (LCP, CLS, INP)?
No. Core Web Vitals require rendering the page in a real browser, which this tool doesn't do — it measures server-side response metrics instead (response time, size, headers). The results include a direct link to Google PageSpeed Insights, which does measure Core Web Vitals.
What does this tool actually measure?
Response time and total page size from a single server-side fetch, whether the response is compressed (gzip/brotli), key security headers (HSTS, CSP, X-Frame-Options, etc.), cache headers (Cache-Control, ETag, Last-Modified), and a static count of <script>, <link rel=stylesheet>, and <img> tags found in the HTML — not an actual browser-rendered network waterfall.
What is a good response time?
Under 500ms is labeled Fast by this tool, 500–1500ms Moderate, and over 1500ms Slow. This measures server response time only, not full page load or Core Web Vitals — a fast server response doesn't guarantee a fast-feeling page for users.
Why do results differ from Google PageSpeed Insights?
PSI renders the page in a real (throttled) browser and reports Core Web Vitals. This tool only measures a single server-side fetch — response time, headers, and size. Use PSI for standardised, render-based performance benchmarking; use this tool for a quick server/headers check.
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), and set proper Cache-Control/ETag headers.
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.
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.
Works with ChatGPT, Claude, Cursor, GitHub Copilot, VS Code, Poe and more — 106+ tools, zero data collection.