# Base64 Encoding & Performance, Part 2: Gathering Data

DevFeed: [Base64 Encoding & Performance, Part 2: Gathering Data](<https://devfeed.tech/articles/base64-encoding-performance-part-2-gathering-data-45616.md>)

Original publisher: [Read original article](<https://csswizardry.com/2017/02/base64-encoding-and-performance-part-2/>)

Author: Harry Roberts

Published: 2017-02-12T15:47:21Z

Content type: article

Language: en

Sources: [CSS Wizardry](<https://devfeed.tech/sources/css-wizardry.md>)

Topics: [Encoding](<https://devfeed.tech/topics/encoding.md>), [Performance Testing](<https://devfeed.tech/topics/performance-testing.md>), [Web Development](<https://devfeed.tech/topics/web-development.md>), [CSS](<https://devfeed.tech/topics/css.md>), [HTML](<https://devfeed.tech/topics/html.md>), [Chrome](<https://devfeed.tech/topics/chrome.md>), [Caching](<https://devfeed.tech/topics/caching.md>), [Latency](<https://devfeed.tech/topics/latency.md>)

Tags: [base64](<https://devfeed.tech/tags/base64.md>), [caching](<https://devfeed.tech/tags/caching.md>), [cpu](<https://devfeed.tech/tags/cpu.md>), [css](<https://devfeed.tech/tags/css.md>), [desktop](<https://devfeed.tech/tags/desktop.md>), [encoding](<https://devfeed.tech/tags/encoding.md>), [html](<https://devfeed.tech/tags/html.md>), [images](<https://devfeed.tech/tags/images.md>), [latency](<https://devfeed.tech/tags/latency.md>), [over](<https://devfeed.tech/tags/over.md>), [performance](<https://devfeed.tech/tags/performance.md>), [performance-testing](<https://devfeed.tech/tags/performance-testing.md>), [resource-loading](<https://devfeed.tech/tags/resource-loading.md>)

## AI overview

This article reports measurements comparing traditionally loaded assets with Base64-encoded assets in stylesheets. It describes tests using HTML and CSS files, Chrome performance profiling, desktop and mobile conditions, and metrics such as DOMContentLoaded, Load, First Paint, stylesheet parsing, and image decoding.

## Source excerpt

Statistics, tests, and numbers looking at the performance costs of Base64