Replace animated GIFs with video for faster page loads | Articles | web.dev
Replace animated GIFs with video for faster page loads Stay organized with collections Save and categorize content based on your preferences. Have you ever seen an animated GIF on a service like Imgur or Gfycat, inspected it in your dev tools, only to find out that GIF was really a video? There's a good reason for that. Animated GIFs can be downright huge. Thankfully, this is one of those areas of
Web Vitals | Articles | web.dev
Web Vitals Stay organized with collections Save and categorize content based on your preferences. Optimizing for quality of user experience is key to the long-term success of any site on the web. Whether you're a business owner, marketer, or developer, Web Vitals can help you quantify the experience of your site and identify opportunities to improve. Overview Web Vitals is an initiative by Google
User-centric performance metrics | Articles | web.dev
User-centric performance metrics Stay organized with collections Save and categorize content based on your preferences. We've all heard how important performance is. But when we talk about performance, and about making websites "fast", what specifically do we mean? The truth is that performance is relative: A site might be fast for one user (on a fast network with a powerful device) but slow for a
Browser-level image lazy loading for the web | Articles | web.dev
Browser-level image lazy loading for the web Stay organized with collections Save and categorize content based on your preferences. You can use the loading attribute to lazy-load images without the need to write custom lazy-loading code or use a separate JavaScript library. Here's a demo of the feature: Lazy-loaded images load as the user scrolls through the page. This page walks through the detai
Rendering on the Web | Articles | web.dev
Rendering on the Web Stay organized with collections Save and categorize content based on your preferences. One of the core decisions web developers must make is where to implement logic and rendering in their application. This can be difficult because there are so many ways to build a website. Our understanding of this space is informed by our work in Chrome talking to large sites over the past f
Why HTTPS matters | Articles | web.dev
Why HTTPS matters Stay organized with collections Save and categorize content based on your preferences. Always protect all your websites with HTTPS, even if they don't handle sensitive communications. In addition to providing critical security and data integrity for both your websites and your users' personal information, HTTPS is required for many new browser features, especially those required
Web App Install Banners | Web Fundamentals | Google Developers
対応ブラウザ <ph type="x-smartling-placeholder"></ph> 39 <ph type="x-smartling-placeholder"></ph> 79 <ph type="x-smartling-placeholder"></ph> × <ph type="x-smartling-placeholder"></ph> 17 ソース ウェブアプリ マニフェストは、ブラウザに対してリクエスト方法を プログレッシブ ウェブアプリ（PWA）は、ユーザーのデスクトップまたは 接続します一般的なマニフェスト ファイルには少なくとも次のものが含まれます。 アプリの名前 アプリで使用するアイコン アプリの起動時に開く必要がある URL マニフェスト ファイルを作成する マニフェスト ファイルには任意の名前を付けることができますが、通常は manifest.json と
画像の最適化 | Web | Google Developers
Web performance is a crucial aspect of web development that focuses on the speed at which pages load, as well as how responsive they are to user input. When you optimize your website for performance, you're giving users a better experience. The initial release of this course focuses on web performance fundamentals, that beginners should find informative. Each module aims to demonstrate key perform
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