![]() If you implemented lazy loading for images using JavaScript or a JavaScript library, make sure your implementation excludes lazy loading of LCP and above-the-fold images.ģ) Using CMS Plugins (For WordPress or other CMS) Keep in mind that your LCP image could differ on mobile and desktop, so consider disabling lazy loading on all your above-the-fold images. If you've used the loading="lazy" attribute to utilize the browser's lazy loading feature for images in your HTML, simply remove the attribute from the identified LCP image. Your website can have lazy loading implemented in multiple ways: You'll then need to find a way to disable lazy loading for that particular image. If GTmetrix triggers this audit, make note of the LCP image by expanding the audit and reviewing the identified LCP element. How to disable lazy loading of the LCP image? GTmetrix checks to see if the LCP image is lazily loaded. Use efficient CSS selectors (deprecated).Specify a viewport for mobile browsers (deprecated).Specify a Vary: Accept-Encoding header (deprecated).Serve static content from a cookieless domain (deprecated).Remove query strings from static resources (deprecated).Parallelize downloads across hostnames (deprecated).Optimize the order of styles and scripts (deprecated).Make landing page redirects cacheable (deprecated).Improve server response time (deprecated).Defer loading of JavaScript (deprecated).Combine external JavaScript (deprecated).Avoid Flash on mobile webpages (deprecated).Avoid CSS Avoid CSS expressions (deprecated).Use passive listeners to improve scrolling performance.Use explicit width and height on image elements.Serve static assets with an efficient cache policy.Replace large JavaScript libraries with smaller alternatives (deprecated).Remove duplicate modules in JavaScript bundles.Lazy load third-party resources with facades.Keep request counts low and transfer sizes small.Ensure text remains visible during webfont load.Don't lazy load Largest Contentful Paint image. ![]() Avoid serving legacy JavaScript to modern browsers.The Robot component's route is added to the app's route collection. The assembly is assigned to AdditionalAssemblies, which results in the router searching the assembly for routable components, where it finds the Robot component. For more information, see the User interaction with content section. Replace the app's default App component with the following App component.ĭuring page transitions, a styled message is displayed to the user with the element. The following Router component demonstrates loading the GrantImaharaRobotControls.dll assembly when the user navigates to /robot. Specify the RCL's assembly for lazy loading in the Blazor WebAssembly app's project file (. The Index component makes no use of the assembly, so loading the assembly is inefficient.Ĭonfigure the app to lazy load the GrantImaharaRobotControls.dll assembly: For the default page that loads the Index component ( Pages/Index.razor), the developer tool's Network tab indicates that the RCL's assembly GrantImaharaRobotControls.dll is loaded. The placeholder is the path to the RCL project.īuild and run the app. The Blazor framework prevents the assembly from loading at app launch. csproj) using the BlazorWebAssemblyLazyLoad item. Mark assemblies for lazy loading in the app's project file (. Assembly lazy loading doesn't benefit Blazor Server apps because Blazor Server app assemblies aren't downloaded to the client. This article only applies to Blazor WebAssembly apps. For a working demonstration, see the Complete example section at the end of this article. This article's initial sections cover the app configuration. Blazor WebAssembly app startup performance can be improved by waiting to load app assemblies until the assemblies are required, which is called lazy loading.
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