Speed up your website.

Of all the ways to improve website performance, caching is the most important one. And everyone who works online should at least know the basics of web caching. Including marketers, SEOs, webmasters and content creators. Read more...

Around 50% of all bytes on the average page in 2025 are image bytes. It's impossible to have great performance without image optimization. Read more...

Most website owners focus on improving the speed of delivering content while neglecting usability. And that's a recipe for disaster. Read more...

On the web, first impressions are everything. And with a slow FCP, you don't have a chance of making even a decent first impression. Read more.

FID represents one of the three pillars of Google's Core Web Vitals program - Interactivity. Measuring your FID is also a great way to determine the first impression your website makes. Read more...

Users hate unresponsive pages. But not all unresponsive pages are the same. The TBT metric measures the severity of the unresponsiveness by performing a granular analysis of each task on the main thread. Read more...