Learn about the Web Platform Dashboard and how you can query its HTTP API to get data on features that have reached Baseline to build tools for your development workflow.

• বেসলাইন
• জাভাস্ক্রিপ্ট

With the growing importance of Core Web Vitals, site owners and developers increasingly focus on performance and key user experiences. Google provides many tools to help evaluate, optimize, and monitor pages, but users are often confused by the different sources of data and how to use them effectively. This guide proposes a workflow combining several tools and clarifies where and how they make sense along the development process.

Read about various happenings with Baseline during February 2025.

• বেসলাইন ২০২৫
• ব্লগ

ruby-align is now part of Baseline

• বেসলাইন ২০২৪
• ব্লগ
• HTML

Published: February 20, 2025 Browser Support Source The Background Fetch API requires your app to register a service worker. As the browser fetches, it displays progress to the user and gives them a method to cancel the download. Once the download is

• AI ও মেশিন লার্নিং
• জাভাস্ক্রিপ্ট

Learn about rel=prefetch resource hint and how to use it.

• জাভাস্ক্রিপ্ট
• HTML

Cumulative Layout Shift (CLS) is a metric that quantifies how often users experience sudden shifts in page content. In this guide, we'll cover optimizing common causes of CLS such as images and iframes without dimensions or dynamic content.

• CSS
• HTML

Learn how to identify and fix layout shifts.

• জাভাস্ক্রিপ্ট

CSS scrollbar-gutter and scrollbar-width have landed in all major browser engines, making it Baseline Newly available.

• বেসলাইন ২০২৪
• ব্লগ
• CSS

In its first edition, this Baseline monthly digest covers happenings in Baseline at both Google and the web developer community in January 2025.

• বেসলাইন ২০২৫
• ব্লগ

WasmFS and the mimalloc feature in Emscripten can help a lot with allocation and I/O performance. This guide shows how these features can lead to speed improvements of 10 times or more in some cases.

WebAssembly Garbage Collection and Wasm tail call optimizations have now landed in all major browser engines, making them Baseline Newly available.

• বেসলাইন ২০২৫
• ব্লগ
• C

This post introduces the Largest Contentful Paint (LCP) metric and explains how to measure it

• জাভাস্ক্রিপ্ট

This post introduces the Time to First Byte (TTFB) metric and explains how to measure it.

• জাভাস্ক্রিপ্ট

Promise.try has now landed in all major browser engines, making it Baseline Newly available.

• বেসলাইন ২০২৫
• ব্লগ
• জাভাস্ক্রিপ্ট

Short description

• জাভাস্ক্রিপ্ট

Published: January 13, 2024 There are so many amazing projects you can build with AI, with classic machine learning models and newer large language models (LLMs). With LLMs, computers can generate new content, write summaries, analyze text for

• AI ও মেশিন লার্নিং
• ব্লগ

You've been told "don't block the main thread" and "break up your long tasks", but what does it mean to do those things?

• জাভাস্ক্রিপ্ট

A payment transaction using Web Payments starts with the discovery of your payment app. Learn how to set up a payment method and get your payment app ready for merchants and customers to make payments.

• জাভাস্ক্রিপ্ট

CSS masking gives you the option of using an image as a mask layer. This means that you can use an image, an SVG, or a gradient as your mask, to create interesting effects without an image editor.

• CSS

web-features dataset, Web Platform Status dashboard, Baseline status widget and more! Take a look back on Baseline in 2024.

• ব্লগ

This post explains lazy loading and the options available to you to lazy loading video.

• জাভাস্ক্রিপ্ট
• HTML

Module preload offers a way of declaratively loading JavaScript modules ahead of time.

• HTML

To optimize user experience, it's essential to understand how users interact with your forms. Browser autofill plays a significant role in this process. Learn how to collect and analyze data on how users use autofill in your forms.

• জাভাস্ক্রিপ্ট

Toxicity detection protects your users and creates a safer online environment. In part two, we learn how to build a client-side AI tool to detect and mitigate toxicity at its source.

• AI ও মেশিন লার্নিং
• জাভাস্ক্রিপ্ট

This post describes the Total Blocking Time (TBT) metric and explains how to measure it

Learn how to measure your site's Web Vitals in both real-world and lab environments.

A collection of best practices that Chrome has identified as the biggest opportunities to optimize web performance and improve Core Web Vitals

A step-by-step guide on how to break down LCP and identify key areas to improve.

• HTML
• জাভাস্ক্রিপ্ট

Essential metrics for a healthy site

• জাভাস্ক্রিপ্ট