Run a Website Speed Check
Enter a website URL to check basic server response speed, TTFB and HTTP status information.
Results
What This Website Speed Tool Measures
This speed test focuses on server-side performance signals such as response time, time to first byte and HTTP status.
It is useful for identifying hosting bottlenecks, slow backend responses or pages that may need optimisation.
- TTFB and server response signals
- HTTP status information
- Potential hosting bottlenecks
- A quick comparison between websites or providers
How to Improve Website Speed
Better hosting, caching, image optimisation, fewer heavy plugins and cleaner code can all help improve website speed.
What Is a Good Website Response Time?
A fast server should begin responding quickly and remain consistent across repeated tests. Lower TTFB and response-time figures usually indicate that the hosting platform, caching and backend processing are working efficiently.
Results should be judged as a pattern rather than from one isolated test. Temporary server load, network routing and cold caches can cause individual results to rise or fall.
Server Speed Is Only Part of Page Speed
This tool focuses on server-side response signals. A page can still feel slow because of oversized images, large JavaScript files, third-party tracking scripts, web fonts, plugins or complex browser rendering.
For the clearest picture, combine these server results with browser-based testing and check the page on both desktop and mobile connections.
Understanding Your Result
What the Website Speed Score Means
The score provides a simple summary of the average server response measured across three separate tests.
Grade A–B
A fast result with a healthy server response. Continue monitoring after website or hosting changes.
Grade C
Reasonable performance, although caching, plugins or hosting resources may still offer improvement.
Grade D–E
Slow server response. Review caching, backend processing, database activity and hosting capacity.
Grade F
Very slow or problematic response. Check for server errors, resource limits or major hosting bottlenecks.
Why the Tool Runs Three Tests
A single speed check can be affected by a cold cache, a temporary traffic spike or changing network conditions. Running three checks and calculating an average produces a more useful indication of normal server behaviour.
The response-consistency result also shows whether the three measurements were close together or varied significantly.
Practical Checks
How to Interpret Website Speed Results
Speed results help identify whether server response, hosting performance or page setup may be slowing a website down.
TTFB
Time to First Byte shows how long the server takes before it starts sending a response.
Response time
A high response time can point to slow hosting, heavy backend processing or missing caching.
HTTP status
Status codes confirm whether the page is loading successfully or returning an error.
Speed Improvement Checklist
- Use suitable hosting resources for the website.
- Enable caching where appropriate.
- Optimise images and remove unused scripts.
- Reduce heavy plugins, themes or slow database queries.
Website Tools
More Free Website Tools
Use these related tools to check DNS, SSL, headers, website status, speed, IP information and domain details.
Website Speed Test FAQs
What does this website speed test measure?
It measures server-side signals returned by the speed API, including Time to First Byte, total response time and HTTP status. It also displays any image-performance data returned by the test.
Is this the same as a full Lighthouse or Core Web Vitals test?
No. Lighthouse and Core Web Vitals measure browser rendering and user-experience signals. This tool focuses mainly on the server response before and while page data is being returned.
What is Time to First Byte?
Time to First Byte, commonly called TTFB, is the time between requesting a page and receiving the first byte of data from the server.
What is considered a good TTFB?
Lower is generally better. A consistently low TTFB suggests that the server, application and database are beginning to respond quickly. Results should still be compared over several tests.
What is the difference between TTFB and response time?
TTFB measures how quickly the response begins. Response time measures how long the tested server request takes overall. A site can have a reasonable TTFB but still take longer to complete the response.
Why does the tool run three separate tests?
Three tests reduce the effect of a temporary spike, cold cache or unusual network delay. The final score uses an average to provide a more stable result.
Why do my speed results change between tests?
Server load, caching, network routing, database activity, background tasks and temporary traffic can all cause results to vary.
What does response consistency mean?
Response consistency compares the difference between the fastest and slowest of the three server measurements. A narrow range suggests predictable performance, while a wide range can indicate inconsistent server load or caching.
Can web hosting affect website speed?
Yes. Processor allocation, memory, storage performance, server location, account limits and how many websites share the server can all affect response speed.
Can caching improve these results?
Server-side page caching, object caching and properly configured application caching can reduce backend work and improve both TTFB and overall response time.
Why can a fast server still produce a slow website?
The browser may still need to download and process large images, scripts, fonts, stylesheets, advertisements and third-party services after the server response begins.
What should I do when the result is slow?
Repeat the test, check for HTTP errors, review caching and plugins, optimise images and database queries, and confirm that the hosting plan has enough resources for the website.