We already know the importance of a website’s load time in SEO and user experience. So, I recommend all webmasters to have a regular check of page speed and load time to make sure everything is fine on their website. If you are checking the performance metric of your website, you will see the term “Total Blocking Time” in the report. Total Blocking Time (TBT) was introduced in 2020 and is now an important factor. In this article, I will explain Total Blocking Time and will tell you its importance of it. I will also tell you how to improve Total Blocking Time to improve user experience.
Total Blocking Time (TBT) is a web performance metric that measures the amount of time a web page spends being blocked by long-running JavaScript tasks. It is basically the amount of time when the main thread was blocked between First Contentful Paint (FCP) and Time To Interactive (TTI).
TBT is a more accurate indicator of a website’s performance than other metrics like First Contentful Paint (FCP) or Time to Interactive (TTI) because it takes into account the impact of JavaScript on the page’s responsiveness.
When a web page has a high TBT, it means that the page is slow to respond to user input and can lead to a poor user experience. Long-running JavaScript tasks can block the main thread of the browser, preventing the page from loading quickly and causing the user to wait for the page to become interactive. This can lead to frustration and abandonment, and can also negatively impact search engine rankings.
The best way to measure the TBT of a web page, you need to run a Lighthouse performance audit on your site. You can use any of these tools:
If TBT is less than 200ms, it is good. A score between 200-600ms is fine but needs improvement. If the TBT score is more than 600ms, it is considered poor and you should immediately take an action to improve the TBT.
To ensure that everything is fine with your website’s TBT, you can take the following steps:
Wrap Up
TBT is an important metric and you need to keep an eye on it to make sure it is good. Google gives Page Experience importance. So, you need to keep checking all of Google’s Core Web Vitals factors regularly. I have written several important articles on SEO, Performance improvements, and affiliate marketing. You should also explore other articles to learn about blogging and online earning.
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