Measure Time To First Byte (TTFB) globally. No need to run separate tests.
PageSpeedPlus runs a Time To First Byte Test from multiple locations at once. Try it out by entering your URL above.
Pages are tested from 11 places including London, California, Virginia, Montreal, Frankfurt and more. The results are then available on a page that can be shared. This feature is a native part of our tool and compliments the PageSpeed Insights scans that we perform.
Time to First Byte (TTFB) is a critical metric in web performance that measures the duration from when a user requests page until the first byte of data is received in their browser. Time To First Byte tests a server's responsiveness, reflecting how quickly the server can start transmitting data after receiving a request. It encompasses three main phases:
TTFB measures the time taken from clicking a link to the moment the first piece of content is delivered to your browser.
TTFB is a crucial because it precedes all other user interactions. They cannot do anything until there is a byte of data for the browser to render so user experience is directly affected. A high TTFB causes longer load times, frustrating users and causing them to abandon.
Given the importance, regular Time To First Byte Testing is essential to ensure scores are good and remain good.
Testing Time To First Byte as simple as entering a URL at the top of this page and clicking the button. We'll do the rest.
What locations is TTFB measured from?
Virginia, Ohio, California, Oregon, Dublin, London, Frankfurt, Montreal, Tokyo, Sydney, São Paulo
What is considered a good TTFB?
Good TTFB is 200 milliseconds (ms) or less. This indicates that the server is responding quickly to requests. Anything above 500 ms is cause for concern and could negatively affect user experience and search rankings.
What factors affect TTFB?
Server location, server configuration, compression, network latency, and the complexity of server-side processing. A server that is geographically far from the user will have a higher TTFB due to the time it takes for data to travel. This is the speed of light problem and can only be solved by having servers closer to users.
Does TTFB impact all users equally?
No. Testing Time To First Byte From different locations will return different results. This is because TTFB varies depending on the user's location relative to the server, the network conditions, and the complexity of the requested page. Users closer to the server experience a lower TTFB than those farther away. To give a rounded picture, we test Time To First Byte wordlwide from 11 locations.
Is TTFB the same as latency?
While related, TTFB and latency are not the same. Latency refers to the time it takes for a data packet to travel from the client to the server and back, which is one component of TTFB. However, TTFB also includes the time taken by the server to process the request.
Can a CDN help reduce TTFB?
Yes, a Content Delivery Network (CDN) can help reduce TTFB by caching content closer to the user. This reduces the distance data needs to travel and can significantly improve the Time To First Byte score, especially for users far from the server’s origin.
The Page Speed Plus Time To First Byte Test checks TTFB from multiple locations so you have the full picture on your global score. All you need to do is enter the URL above. If you like this free tool and want to automate the testing of TTFB, sign up for a trial below.