ZenovayTools

Website Speed Test

Test website response time, content size, and compression. Measure TTFB and total download time.

How to Use Website Speed Test

  1. 1Enter the URL of the website you want to test.
  2. 2Click "Run Test" to analyze the page from our global network.
  3. 3Review performance metrics including TTFB, load time, and page size.
  4. 4Check the recommendations to improve your site speed.
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Frequently Asked Questions

What does TTFB mean?▾
TTFB (Time to First Byte) measures how long it takes for the first byte of data to arrive from the server after a request is sent. A good TTFB is under 200ms, and under 800ms is acceptable.
Is this the same as Google PageSpeed Insights?▾
No. This is a simple server-side speed test that measures raw HTTP response metrics (TTFB, download time, content size). PageSpeed Insights measures client-side rendering performance and Core Web Vitals.
Why is compression important?▾
Compression (gzip, Brotli) typically reduces HTML, CSS, and JavaScript file sizes by 60-80%. This reduces download time and bandwidth usage. Most web servers support it natively.
What is a good page load time?▾
For server-side response, under 500ms total is good, under 1 second is acceptable. This does not include client-side rendering time. Actual user-perceived performance depends on many more factors.
How does this tool fetch the page?▾
Our servers fetch the URL and measure HTTP response metrics including TTFB, total download time, response size, and compression. The request is made from our server infrastructure, not your browser.
Can I test pages behind a login?▾
No. The tool can only test publicly accessible URLs. Pages behind authentication, firewalls, or VPNs cannot be reached by our servers.
Does server location affect the results?▾
Yes. TTFB and total load time depend on the distance between our server and the target server. Results may differ from your local experience based on geographic proximity and CDN configuration.