TTFB Checker (Time to First Byte) - Prador

  [ Rocketeers ](/)   

[Login](https://app.rocketeersapp.com) 

 Tool TTFB checker  

  No tools match “”

 URL to measure Measure Measuring…

Try:  

Time to first byte

Status  Total  Size  Protocol 

Timing breakdown
----------------

 Followed  redirect(s) to  ·

 Connected to

What is time to first byte?
---------------------------

**Time to first byte (TTFB)** measures how long it takes from the moment a request starts until the first byte of the response arrives. It captures everything that happens before the browser can begin rendering: DNS resolution, the TCP connection, the TLS handshake, and the time the server spends generating the response.

 A fast TTFB (generally under **200 ms**) is a strong signal of a healthy server and a snappy site. A slow one points to DNS, network or back-end bottlenecks. This tool measures from our server, so results reflect raw server performance rather than your own connection.