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Fixing Long Animation Frames (LoAF)

You’ve found some Long Animation Frames (LoAFs) impacting your site, now you need to fix them! LoAFs can make animations feel sluggish, delay user interactions, and generally reduce your site’s responsiveness, all of which contribute to a frustrating experience for users. Fortunately, by analyzing LoAF data and addressing common performance bottlenecks, you can dramatically improve how smoothly your site runs.

Request Metrics and Perforator - Combining RUM and Load Testing

Your website’s performance can make or break your business. Slow load times, crashes under pressure, and a poor user experience can cost you customers, reduce your search engine rankings, and hurt your bottom line. That’s why monitoring and testing your site’s performance is critical—but not all performance monitoring is the same. At Request Metrics, we focus on Real User Monitoring (RUM), which shows you how real users are experiencing your website in real-time.

What are Long Animation Frames (LoAF)

A Long Animation Frame, often called a LoAF, occurs when your website’s animations take too long to render, slowing down interactions and making your site feel “frozen” or “janky.” And yes, it’s hilarious that it sounds like a loaf of bread—so get ready for plenty of bread, butter, and toasting puns! You might be thinking, “I’m building an online store (or whatever), what do I care about animations? I’m not talking about cartoons.

Measuring Largest Contentful Paint with Request Metrics

Measuring Largest Contentful Paint (LCP) is important because it helps you understand how quickly the main content of a web page loads and becomes visible to users. LCP focuses on when the largest visible element—like a hero image, heading, or video—renders in the viewport, making it a key indicator of perceived load speed. Optimizing for LCP ensures faster, smoother interactions, enhancing both user satisfaction and search engine ranking. Let's see how you can get to the bottom of any LCP problems in Request Metrics!

The Chrome UX Report: Why Real Data Matters

Everyone in web performance talks about CrUX—what the heck is it?! CrUX, or the Chrome User Experience Report, is Google’s initiative to measure how websites perform for their real users. It’s not just another test, it’s a window into the actual experience people have when they visit a site. Wait—didn’t Googlebot and PageSpeed Insights already do this? Are they going away? Not exactly.

Launching Resource Performance Monitoring

What is the slowest part of your website? Most of the time, it’s the resources: all the CSS, fonts, images, and JavaScript that powers your webpage. Resources that are too big or too slow are often the root cause of slow Core Web Vitals. This week, we’re releasing a bunch of new tools and reports to better understand your web resources, how they impact your website performance, and where you have opportunities to improve.

Request Metrics Evergreen

🚀 Today, the team at Request Metrics is changing the game in #webperformance with the introduction of Evergreen! Say goodbye to slow website performance and hello to your perfect green performance reports. 😫 Tired of your boss nagging you about improving your #CoreWebVitals? Say no more! Request Metrics Evergreen has got you covered and will have your boss off your back in no time.

How to Monitor Cross-Origin Resource Performance

Browsers provide detailed performance information about every resource a webpage loads. Most of this information is hidden during cross-origin requests however. This is a common problem since pages often load content from a variety of origins. Pages can access cross-origin timing information if an additional header is added to cross-origin responses.