Server response time refers to the time it takes to load the minimum amount of HTML necessary to begin rendering the web page from the server. Additionally, in terms of Google PageSpeed results, this response time does not consider the delay, or latency, from Google and your web server.
Improve Server Response Time (Deprecated)
What is Server Response Time?
What is Considered a Good Server Response Time?
A good server response time should be under 200ms, according to Google PageSpeed. Anything higher could indicate potential underlying performance bottlenecks, like slow database queries, CMS content, server hardware, or even issues from your hosting provider. It is important to review all areas that could be causing server slowdowns.
Lighthouse is an open-source tool that is used to run an audit against your web pages and provides scores and suggestions for improving page performance, accessibility, SEO, and more.
PageSpeed Insights is a tool created by Google that reports on the performance of a page on both mobile and desktop devices, and provides suggestions on how that page may be improved.