Site speed test with a clear result

For web teams checking a launch or tracing a fault, this test provides an immediate point of reference. Break down website timing across DNS, connection, first byte and download.

Break down website timing across DNS, connection, first byte and download. The result organizes the useful evidence so you can focus the diagnosis.

How to use

Enter the full URL of the site you want to test in the input field.
Check that the address starts with http or https and contains no spaces.
Launch the test and wait for the measurements to be returned.
Read the breakdown across DNS, connection, first byte and download.
Compare the stages to identify which one delays the page most.

Example

A site owner notices that the home page feels slow. They enter the address, run the test and see which phase dominates: DNS resolution, connection, first byte wait or download. This helps them decide whether to contact the host, the network team or the developer.

Limits and formats

The test measures the path between the tool server and the target site, not each visitor’s real experience.
A single result can vary with network load and time of day.
The tool does not test visual rendering, scripts that run after load or mobile quality.
An address that is not publicly reachable or is password protected may fail.

Where processing happens

This is a network tool: the domain, IP address or URL you enter is sent to the tool server, which queries the public DNS or the target site itself and returns the result. No file is uploaded.

Frequently asked questions

Can I test a password-protected site?

No, the tool queries the address from the outside and cannot authenticate. Pages that are only available after login may return an error or a login page, which distorts the measurements and makes the diagnosis less reliable.

Why do timings change between tests?

Delays depend on the network, the site load and the distance between machines. Run the test several times at different moments to spot a trend rather than a single value, especially when you need to confirm a problem.

What does first byte mean?

First byte is the delay before the site starts responding after the connection. If it is high, the issue often comes from the server or the application, not only from downloading images, scripts and other resources.