Need to reduce your total blocking time in WordPress?
Total blocking time is caused by long tasks (over 50ms) that block the main thread.
1. Find Elements Causing High Blocking Time
GTmetrix Waterfall – brown bars represent blocking time.
Chrome Dev Tools – the Performance tab in Chrome Dev Tools shows total blocking time.
Third-Party Code – blocking time of third-party code can be directly measured in PageSpeed Insights. Often, this is from Google Fonts, Analytics, Tag Manager, advertisements, and videos.
Long Main-Thread Tasks – Google lists “minimize main-thread work” as one of the biggest factors of total blocking time. Find your worst main-thread contributors in PageSpeed Insights.
What Is A Good Total Blocking Time?
This article was written by Tom Dupuis and originally published on Tom Dupuis.