Your Website Speed is one of the most important Technical SEO Factors that Google will take into consideration while evaluating your Website.

We will discuss 2 Tools to evaluate both Desktop and Mobile Speed.

We will see how fast your Website should be according to a set of Metrics for which your Website should not exceed certain thresholds.

For those Metrics where your Website exceeds the recommended thresholds, you should communicate the current Speed Metric Values of your Website as well as the desired Values to your Developer, along with guidelines to help them solve the detected Speed Issues.


The First Tool is for Desktop Speed: GTMetrix




The Metrics you should know and their respective thresholds are:




First Contentful Paint

How quickly content like text or images are painted onto your page.

A good user experience is 0.9s or less.


Speed Index

How quickly the contents of your page are visibly populated.

A good user experience is 1.3s or less.


Largest Contentful Paint

How long it takes for the largest element of content (e.g. a hero image) to be painted on your page.

A good user experience is 1.2s or less.


Time to Interactive

How long it takes for your page to become fully interactive.

A good user experience is 2.5s or less.


Total Blocking Time

How much time is blocked by scripts during your page loading process.

A good user experience is 150ms or less.


Cumulative Layout Shift

How much your page’s layout shifts as it loads.

A good user experience is a score of 0.1 or less.


The Second Tool is for Mobile Speed: Google Page Speed Insights


Google PageSpeed Insights


Using the same Metrics and Thresholds that you now know, you should communicate Page Speed Insight’s recommendations to your Developer.


Google Page Speed Insights 2


Hopefully, this article has helped you understand the importance of Website Speed in SEO, what Metrics are used to measure Speed Performance, the Tools that are used, and what to communicate to your Developer.