# Squarespace & Web Standards: How We Helped Bring HTML Video & Audio Lazy Loading to Today's Browsers

DevFeed: [Squarespace & Web Standards: How We Helped Bring HTML Video & Audio Lazy Loading to Today's Browsers](<https://devfeed.tech/articles/squarespace-web-standards-how-we-helped-bring-html-video-audio-lazy-loading-to-today-s-browsers-30781.md>)

Original publisher: [Read original article](<https://engineering.squarespace.com/blog/2026/squarespace-and-web-standards-how-we-helped-bring-html-video-and-audio-lazy-loading-to-todays-browsers>)

Author: Scott Jehl

Published: 2026-03-30T21:00:00Z

Content type: article

Language: en

Sources: [Squarespace](<https://devfeed.tech/sources/squarespace.md>), [Squarespace Engineering Blog](<https://devfeed.tech/sources/squarespace-engineering-blog.md>)

Topics: [web-standards](<https://devfeed.tech/topics/web-standards.md>), [lazy loading](<https://devfeed.tech/topics/lazy-loading.md>), [HTML](<https://devfeed.tech/topics/html.md>), [Web platform](<https://devfeed.tech/topics/web-platform.md>), [WebKit](<https://devfeed.tech/topics/webkit.md>), [Chromium](<https://devfeed.tech/topics/chromium.md>), [Google Chrome](<https://devfeed.tech/topics/google-chrome.md>), [Firefox](<https://devfeed.tech/topics/firefox.md>)

Tags: [browsers](<https://devfeed.tech/tags/browsers.md>), [chrome](<https://devfeed.tech/tags/chrome.md>), [chromium](<https://devfeed.tech/tags/chromium.md>), [firefox](<https://devfeed.tech/tags/firefox.md>), [html](<https://devfeed.tech/tags/html.md>), [lazy-loading](<https://devfeed.tech/tags/lazy-loading.md>), [standards](<https://devfeed.tech/tags/standards.md>), [web-standards](<https://devfeed.tech/tags/web-standards.md>)

## AI overview

Squarespace engineers describe how they helped add lazy loading for HTML video and audio to the HTML Standard. They contributed proposed implementations for Firefox and WebKit, worked with Chromium developers on a Google Chrome implementation, and added automated testing.

## Source excerpt

At Squarespace, many of our core products are built on web standards, and our engineers are constantly pushing the boundaries of the web's capabilities. Occasionally, those boundaries reveal a limitation: an opportunity for the web's native capabilities to grow. This post is the story of how we found such an opportunity to work with the standards community to improve the web in a way that we - and everyone who uses it - can benefit.