Blog

Anthropic recently shared how their engineering team made the core Claude experience roughly 3x faster in just two weeks.

Google launches four brand-new experimental ad metrics in CrUX. How long does it take before they show up in RUMvision? Well... not that long 😉

Traffic from AI, bots, and crawlers (ABCs) amounts to about 51% of all online traffic. For a company specifically tracking real users that raises a challenge. Who is fake? Who is real? And how do you filter that out?

RUMvision v5 is a broader tracking architecture update focused on more reliable data collection, improved SPA navigation cleanup, better beacon handling and closer alignment with modern browser APIs, while leaving older compatibility layers behind.

It is a common web performance headache: you have optimized your hero images and streamlined your CSS, but your LCP scores are still stuck in the "yellow" zone. Often, the bottleneck isn't the file size- it is the order in which the browser decides to download it.

Health Checks analyze your real user data and turn it into clear, actionable insights. Instead of spending time hunting for performance issues yourself, RUMvision now finds them for you. Spend less time hunting and more time fixing issues.

Super proud moment, RUMvision 2.0 is LIVE 🎉 It has taken a lot of hard work, a lot of talking, and - most importantly - a lot of listening to our clients. But this new version truly puts the "vision" into RUM. Let us tell you what we've build and how it can help your business.

We’re launching a new version of RUMvision. Our 2.0 model is a rebuilt foundation with new features we’ve been working on for months. Here’s what that means for you.

What fun is being a Real User Monitoring tool if you can't pull up real data and wrap it - 2025 style! Worst third-parties, silliest faces (including Jordy's ill-advised moustache) most occuring platforms + countries in our dataset and MUCH more

The story behind our migration with real-world benchmarking, reindexing 8.3 billion documents, our collaboration with Elastic, and the 20 to 140× speed gains our users now experience.

Black Friday is just around the corner! What can you do to make sure your users experience is optimal? Allow us to share 9 quick-wins to make sure you do not miss out on conversions or brand loyalty in the long run. Almost no coding required!

For years, site owners have been using Subresource Integrity (SRI) as a way to ensure that third-party scripts can’t be tampered with. However, keeping your script up to date is one of its challenges.

What happens to ecommerce when the lights go out? On April 28, 2025, a massive power outage hit Spain and Portugal just before noon. We combined electricity demand data with our own data, how others experienced it and the impact of an outage on ecommerce and non-ecommerce.

You want to ship native lazyloading or popovers to get rid of JavaScript and improve INP. And rather sooner than later. But there's a challenge: how to know if all of your users are ready for that feature?Baseline, a browser-wide initiative tracking 1000+ web features, is changing this. And with RUMvision's Baseline integration, you know exactly when your real visitors are ready for shipping modern features.

At RUMvision, we're always looking for smarter ways to optimize web performance data collection. That's why we're excited to announce we've begun rolling out support for a new browser API called fetchLater.

We're excited to announce the implementation of View Transitions API on our website, enhancing navigation fluidity and user feedback. This helps both us and you as a visitor to smoothly navigate our website from the very start of 2025. This UX update not only makes navigation more visually appealing, it also provides better feedback about page load states.

When debugging INP, it might be tempting to first look at elements that visitors interacted with. However, looking at this alone might be misleading and time-consuming.

We're still buzzing after yesterday's incredible events at Google I/O! It was a double Dutch delight for RUMvision, as both our upcoming integration with Google Baseline and our work on INP measurement were featured at Google's biggest event of the year.

As FID is being removed from Google interfaces, endpoints and libraries, we will need to align accordingly. The calculation of our UX score will be reshaped as well.

Let's talk! The state of Magento's pagespeed and Core Web Vitals in 2024. The issues we resolved, the difficulties we still encounter, and the mistakes we want to avoid that could hurt UX and conversion rates.

If you're using a RUM solution to monitor your website's performance and user experience, you might wonder how you can participate in origin trials. Here's where RUMvision steps in to make the process seamless and hassle-free.

Every click counts in today's digital world, so having good website performance is crucial. Just a fraction of a second can mean the difference between a satisfied who stays and a dissatisfied user who leaves. This is where Real User Monitoring and Google Chrome origin trials can truly make a change, and help make the web better. Learn how!

Origin trials allow developers and RUM providers to try out new features and give feedback on usability, practicality, and effectiveness to the web standards community. As most are shipped as well, it could be considered a crucial step in to the future of the web.

With many features come many explanations, and we've outgrown our simple FAQ module. Allow us to guide you through our new knowledge base, which includes extensive assistance in getting the most out of RUMvision. From getting started, to video's, to deepdiving into the filters, we've got you covered.

We reached a significant milestone earlier this month: we are now one year into our paying subscriptions! So, what has happened in the past year? Let's look back on the good, remarkable and the lessons we learned. Spoiler alert: there were 500 iced coffees and over a 100 "Lighthouse is stupid memes" involved.🧋😉

When should a third party actually execute their JavaScript? Right away or later in time? We leave that up to you!

We have some exciting news to share with you! After taking your suggestions and feedback into account, we've been hard at work developing a new release that we think you'll love. And it's live right now!

Wow, a new Core Web Vitals tool in town? That sees the historical data of Core Web Vitals of your website (or your competitors)?!😉Yup, that's right! Google launched the new API (CrUX History API) and that's something to celebrate because now our extra 𝗳𝗿𝗲𝗲 tool can show you data for the last 6 months.

With Core Web Vitals, real user experience data became popular. And everyone and their dogs started to become acquainted with pagespeed and so-called field data. As field data is based on real user experiences out in the field, it is just another word for Real User Monitoring (RUM).

It's often especially JavaScript that will be impacting your Lighthouse score. So, delaying any JavaScript feels like a good idea. And maybe you want lazyload RUMvision as well. Because despite being a monitoring solutions and giving you insights into real UX, it's still yet another JavaScript file. Let's discuss if it's safe to lazyload RUMvision.

Lighthouse is a popular tool for determining a website's load time and other relevant web metrics. It's possible that this is due to the fact that Google is the most popular search engine in the world. But what exactly is Lighthouse? What's the secret to making it work for you? Here, we'll explain how it works and what you can do with the information it provides you.