Pagespeed findings

  • More flexibility, same Security: Our move to Signature-Based SRI

    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.

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    • Reading time ± 4 minutes
  • Electricity outage and the impact your revenue

    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.

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  • Introducing Baseline: ship modern web features with confidence

    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.

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  • Introducing fetchLater API: A new way to collect Core Web Vitals

    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.

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  • Smooth page navigations with the View Transition API

    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.

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  • Using your RUM LoAF data for INP debugging purposes

    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.

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  • Double score! RUMvision got featured twice on Google IO 2024!

    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.

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  • Talk: Hyvä fixes all my Magento pagespeed issues, right?

    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.

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  • How RUMvision is enabling future web features for website owners

    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.

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  • How RUMvision leads the way in Real User Monitoring

    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!

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  • A step in to the future of the web. What are Origin Trials?

    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.

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  • 5 quick wins in UX and pagespeed for Black Friday

    Black Friday is just around the corner! What can you do to make sure your users experience is optimal? Allow us to share 5 quick-wins to make sure you do not miss out on conversions or brand loyalty in the long run.

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  • New knowledge base live - your one way stop to RUMvision mastery 📄

    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.

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  • Celebrating our first anniversary

    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.🧋😉

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  • New release - Introducing UX, FUX, and more!

    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!

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  • Proud announcement: a new free tool to visualize historic website performance

    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.

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  • 7 reasons why choosing a RUM partner needs consideration

    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).

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  • Why you should not lazyload your pagespeed monitoring script

    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.

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  • What is Google Lighthouse and how to use it?

    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.

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    • Reading time ± 6 minutes